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Significant Weather Events
1 May 1988, Vancouver, British Columbia: A small tornado races through the eastern sections of Greater Vancouver.
2 May 1967, Regina, Saskatchewan: Extremely cold May night in Regina sees the low dropped down to -13.3°C (8.1°F).
3 May 1922, Fort Lawrence, Nova Scotia: A lightning bolt knocks a couple and their horse unconscious, but all survive the shock.
4 May 1971, St-Jean-Vianney, Quebec: Tragedy strikes the village of St-Jean-Vianney, when heavy rains caused a sinkhole 600 m (1800 ft) wide and 30 m (92 ft) deep to appear in a residential area. The crater/mudslide killed 31 people and swallowed up 35 homes, a bus and several cars.
4-5 May 2003, Alberta: Spring snow is not uncommon, but rarely so heavy across the province. This storm buries the Iddesleigh area under an astounding 55 cm (22 inches). Other totals include Brooks, Suffield and Jenner areas receiving 20 to 35 cm (8-14 inches) of snow. Medicine Hat have received 22 cm (8.7 inches), Lethbridge 11 cm (4.3 inches), Red Deer 12 cm (5 inches) and Edmonton 7 cm (3 inches).
5 May 1945, Yukon River, Yukon: The US Air Forces vainly attempts to destroy ice jam near Bishop Rock with 33 250-kg bombs and 44 50-kg bombs.
5 May 2012, Southern Alberta: Around 5 cm (2 inches) of snow falls in downtown Calgary with the airport reporting up to 3 cm (1.2 inches). Nearby communities see even more with Airdrie and Okotoks reporting 10 cm (4 inches). At a higher elevation, Cypress Hills Provincial Park receives as much as 20 cm (8 inches).
6 May 2002, Calgary, Alberta: A spring blizzard dumps nearly 30 cm (12 inches) of snow on Alberta's heartland, snarling the morning commute and forcing airlines to cancel flights due to whiteout conditions.
7 May 1915, Lethbridge, Alberta: A powerful wind storm strikes the clock on the Lethbridge post office tower breaking off the hour hand on the north face. The falling steel hand narrowly misses a passing pedestrian.
7-8 May 2010, North Bay, Ontario: Winter weather returns to the Nickel Belt, with snow and high winds. The storm drops more than 7 cm (2.8 inches) of snow on North Bay, breaking a May record that has stood for 33 years.
8 May 1999, Hull, Quebec: A tornado strikes Hull and tears roofs off buildings, causing $2 million in damage.
9 May 1971, Terrace, British Columbia: Temperature drops to May record low -2.2°C (28°F) at Terrace.
10 May 1966, Windsor, Ontario: Record low temperature for May: -2.8°C (27°F) at this Ontario city.
11 May 1986, Morden, Manitoba: A tornado strikes south of town, destroying farm buildings and ripping off tree tops. Beams from one shed roof are blown 100 m (330 ft) and driven 30 cm (12 inches) into the ground.
12 May 2000, Niagara-on-the-Lake, Ontario: A strong, two-minute downburst slams into Niagara-on-the-Lake, bringing hail, 140 km/h (85 mph) winds and 40 to 50 mm (1.6-2.0 inches) of rain. The storm disrupts a performance at the Shaw Festival and knocks out power to the floral clock in nearby Queenston.
13 May 2012, British Columbia: Ashcroft reports the highest temperature in the nation with 31.4°C (88.5°F) while Squamish, Port Alberni and Agassiz establish new record highs.
14 May 2001, Halifax, Nova Scotia: A storm stalled south of Nova Scotia drenchs Halifax with 98.7 mm (3.89 inches), the greatest daily May rainfall since records began in 1871.
14 May 2008, Quebec: Winds gust up to 100 km/h (62 mph) and wreak havoc across Quebec. An 18-wheeler is one of six tractor-trailers pushed over on its side near Beloeil. The Montreal transit authority decides against running buses in the reserved lane on the Champlain Bridge. Winds also inflicte significant property damage in Ste-Julie, uprooting hundreds of trees and leaving a trampoline dangling from power lines. The strong winds cut electricity to 70,000 customers.
14-15 May 1986, Southern Alberta: Late season blizzard whips knee-deep snow on 80 km/h (50 mph) winds. Considered worst Spring snowstorm in Alberta history.
15 May 1884, Elora and Goldstone, Ontario: A tornado spanning half a kilometre (800 yards) destroys barns, stables and fences at Elora and damages a church and cemetery in Goldstone.
15 May 2011, Kingston, Ontario: A slow moving low pressure system south of the Great Lakes brings heavy rainfall to southern Ontario. Kingston receives 58.7 mm (2.3 inches).
16 May 1876, Rondeau, Ontario: A lightning bolt explodes at the schoolhouse and knocks down nearly a dozen students playing in the schoolyard killing one boy.
17 May 1998, Dryden and Fort Francis, Ontario: Hail the size of tennis balls pelt two northwestern Ontario communities in a 5-minute blitz. Much damage to auto glass and house roofs.
17 May 1998, Yellowknife, Northwest Territories: Yellowknife makes local weather history when the morning, temperature drops to a record low of -9.6°C (15°F).
18 May 1950, Winnipeg, Manitoba: 100,000 people evacuated as the Red River crests at 9.2 metres (30.3 ft) above normal water level. Flood waters damage 5,000 homes and buildings.
18 May 1999, Saskatoon, Saskatchewan: Three tornadoes approach close to the western limits of Saskatoon.
18 May 2010, Halifax, Nova Scotia: Halifax warms to a record 23°C (73°F).
18-19 May 2009, Edson, Alberta: Edson receives 25 cm (10 inches) of snow.
19 May 2001, Between Red Deer and Calgary, Alberta: Drivers face blackout conditions, as the wind whips topsoil off farmers' fields over the roads, reducing visibility. A blinding wall of soil contributes to a 15-car pileup near Carstairs. Two hours later, a freak snowstorm pounds Calgary, changing blackouts to whiteouts.
19 May 2004, Southwestern Ontario: Two tornadoes strike southwestern Ontario within minutes of each other and just a few kilometres apart. One touches down at Gads Hill, near Stratford, likely the strongest to hit Ontario in eight years. The other hit near Mitchell.
20 May 1964, Newbrook, Alberta: A small outbreak of weak tornadoes swirl across Newbrook causing property damage. In one incident, a chimney cap from the hardware store resembled a frisbee as it sailed through a nearby window.
20 May 2010, Vegreville and Bonnyville, Alberta: Several communities east of Edmonton, report funnel clouds this evening but no reports indicate they touch down as tornadoes.
21 May 1953, Lambton and Middlesex Counties, Ontario: Tornadoes rage across southwestern Ontario leaving five dead and property damage of $8 million in the Sarnia region.
22 May 1980, Winnipeg, Manitoba: Winnipeg's temperatures rises to 37.0°C (98.6°F), setting a record high for May.
22 May 2012, Newfoundland: Three Newfoundland communities shatter all-time high temperaturerecords for the month of May: St. John's at 26.4°C (79.5°F); Cartwright at 31°C (87.8°F)and Gander, also at 31°C (87.8°F).
23 May 1977, Chatham, New Brunswick: Chatham's temperatures soars to 35.3°C (95.5°F), setting a record high. It will also be the highest temperature measured anywhere in Canada that May.
24 May 1953, Prince Edward Island: A wind storm reaching 90 km/h (55 mph) damages lobster traps and fishing equipment around PEI.
24 May 2007, Calgary, Alberta: Calgarians awake to trees bending and breaking under the weight of a heavy, wet snow that measured 10 cm (4 inches) at the Calgary International Airport to 15-20 cm (6-8 inches) in surrounding areas.
24 May 2010, Northern Ontario: High temperature records for the day are demolished in several Northern Ontario communities. Kapuskasing leads the pack at 34°C (93°F)with Moosonee not far behind at 33°C (91°F). The Kapuskasing temperature is also a new record high for May.
25 May 1944, Dawson, Northwest Territories: A gravel dam at the local powerplant collapses during spring flooding causing tons of ice, 3 m (118 inches) deep, to clog the main street of town.
25 May 2012, Southern Quebec: Two tornadoes touch down in Quebec Friday night. An F0 hits Brownsburg-Chatham at 8:00 p.m. local time destroying two grain silos and uprooting dozens of trees. The second touches down 15 minutes later, about 40 km (25 miles) east in St. Benoit De Mirabel. Several buildings are destroyed and roads become impassible due to scattered debris.
26 May 2001, St John's, Newfoundland: The 2000-2001 snowfall season finally comes to an end in St John's, during which time a grand total of 648.4 cm (255.3 inches) of snow fell. The total snow, which broke a century-old mark, is estimated to have weighed 500 million tonnes!
26 May 1972, Moosonee, Ontario: Afternoon temperatures soars to 33.3°C (92°F) at Moosonee, registering the warmest May day to date.
27 May 1948, Victoria, British Columbia: The 38.1 mm (1.5 inches) rain of rainfall at Victoria, sets the record for the wettest May day observed.
28 May 1921, Bradford, Ontario: An intense cloudburst wipes out four bridges near Bradford. A farmer wades through neck-deep water, strips off his red flannel underwear and uses the cloth to flag down the Orillia train thus avoiding a trainwreck.
28 May 2010, Calgary, Alberta: Calgary's chilly morning temperature of 1°C (34°F) ties it for lowest temperature in cities across Canada with Iqaluit, Nunavut.
28 May 2011, St. Adolphe, Manitoba: A short-lived tornado is spotted near St. Adolphe, south of Winnipeg. Environment Canada also receives reports of funnel clouds and marble-sized hail from various locations in southern Manitoba.
29 May 1914, St Lawrence River, 300 km from Quebec City: Shallow river fog contributes to the collision of the CP Liner Empress of Ireland and a Norwegian coal ship, The Storstad. The liner sinks in 25 minutes drowning 1,024 passengers.
29 May 1986, Montreal, Quebec: Hailstones up to 8 cm (3.2 inches) in diameter pound South Shore causing over $65 million in damage.
30 May, 1961, Buffalo Gap, Saskatchewan: Thunderstorm drops over 250 mm (10 inches) of rain in less than an hour, breaking long drought.
30 May, 1990, Charlottetown, Prince Edward Island: Heavy rain over Charlottetown sets a daily record accumulation for the month: 70.4 mm (2.77 inches).
31 May 1973, Eureka, Northwest Territories: Canada's sunniest month ends as Eureka records 621 hours of sunshine.
31 May 1985, Barrie, Ontario region: Swarm of tornadoes leave 8 dead, 155 injured and $100 million in damage.
1 May 1857, Washington, DC: The Washington Evening Star publishes the first US national weather summary using observations from volunteers to the Smithsonian Institution's cooperative network.
1 May 2010, Louisville, Kentucky: Heavy thunderstorms rain down on Churchill Downs with over an inch (250 mm) hours before the running of the Kentucky Derby, leaving the track waterlogged.
1-2 May 1935, Minneapolis, Minnesota: Snow, ice and sleet blanket parts of southeast Minnesota. Minneapolis receives 3 inches (7.5 cm) of snow.
1-10 May 2003, South and Central United States: More tornadoes, 412, strike the United States during this stretch than any other ten-day period since records began in 1950. A total of 42 storm-related deaths are reported.
2 May 1899, Havre, Montana: A late-season snowstorm buries Havre under 24.8 inches (63 cm) of snow, an all-time record for the city.
2 May 1989, Juneau, Alaska and Honolulu, Hawaii: A day of contrast as Juneau sets a record high with a reading of 72 °F (22.2 °C), while Honolulu drops to record of 60 °F (15.6 °C).
3 May 1982, Kanab, Utah: Sinbad the Sailor, the horse which US President Ronald Reagan's rode in the Death Valley Days TV show, is struck by lightning and killed .
3 May 2001, Portland, Maine: Maximum temperature reaches 92 °F (33.3 °C) destroying the old record of 74 °F (23.3 °C) set in 1969. The airport station also set the warmest low and warmest average with temperatures of 57 °F (13.9 °C) and 75 °F (23.9 °C), respectively
4 May 1915, Northwest Texas: A late-season snowstorm drops up to eight inches (20 cm) of snow on Potter and Armstrong Counties.
4 May 2007, Greensburg, Kansas: A devastating EF5 twister demolishes nearly every structure in Greensburg around 9:30 pm (CDT) and kills ten. The mammoth wedge tornado cuts a swath 1.7 miles (2.7 km) wide and 22 miles (35 km) long across the Kansas landscape. It is the worst single tornado to touch down in the US in eight years.
4-5 May 2003, Central United States: The deadliest outbreak of severe weather since May 1999 produces 84 tornadoes, large hail and damaging winds across eight states. At least 38 people are killed in Kansas, Missouri and Tennessee.
5 May 1930, College Park, Virginia: An unusual heat wave commences with a bang, theCollege Park temperature rockets from 43°F (6.1 °C) to 93°F (33.9 °C).
5 May 2012, Fairbanks, Alaska: In Fairbanks, a thunderstorm rages for about 20 minutes, the earliest thunderstorm in 28 years in Fairbanks.
6 May 1937, Lakehurst, New Jersey: The Hindenburg Disaster; was weather to blame for infamous Zeppelin fire? Thunderstorms reported in area delay docking for two hours .
6 May 1999, Orlando, Florida: Double record day in Orlando. High temperature reaches 94 °F (34.4 °C) and late day cloudburst dumps short-period record rainfall of 1.21 inches (30.7mm) of rain.
6 May 2011, Arrowrock Dam, Idaho: A record high is set at Arrowrock Dam as the thermometer soars to 98 °F (36.7 °C).
7 May 1964, White Mountain 2, California,: The temperature drops to -15°F (-26.1 °C) to set the record May low for the continental U.S.
7 May 2008, Casper, Wyoming,: In mid-afternoon, a tornado touchs down on the south side of Casper, reportedly lifting a car but causes no injury damage.
8 May 1784, Winnsborough, South Carolina: Deadly hailstorm in South Carolina hits the town of Winnsborough. The hailstones, measuring as much as nine inches ( 22.9 cm) in circumference, killed several persons, and a great number of sheep, lambs and birds.
8 May 1840, Natchez, Mississippi: Second deadliest tornado in US history strikes Natchez and Natchez Landing on the Mississippi, killing 317.
8 May 2009, Carbondale, Illinois: A deadly derecho squall line rakes far southern Illinois at midday devastating the Carbondale area on its way across a 1,200-mile (1920 km) swath of terrain covering sections of nine states where hundreds of homes and businesses are damaged or destroyed in Kansas, Kentucky, Illinois, Kentucky and Missouri. The wind gusts to 106 mph (170 km/h) in the Carbondale area with sustained winds measured at up to 90 mph (144 km/h). In southern Illinois, the storm system peels siding and roofs off homes and other buildings, blowing out car windows and tearing up trailer parks
9 May 1966, Ohio and Pennsylvania: Record May snows fall across northeastern Ohio and western Pennsylvania, including 3.1 inches (7.9 cm) at Pittsburgh PA and 5.4 inches (13.7 cm) at Youngstown OH. Snow also covers parts of New York State with 8 inches (20 cm) in the southern Adirondacks.
10 May 1905, Snyder, Oklahoma: A deadly tornado hits the town of Snyder killing 87 persons and leveling 100 homes. The large, violent tornado kills 97 persons along its 40-mile (64 km) path across southwestern Oklahoma.
10 May 1987, Lillian, Alabama: Thunderstorms along the Central Gulf Coast deluge Lillian with 14.5 inches (368 mm) of rain.
10 May 2010, Kansas and Oklahoma.: Violent thunderstorms erupt across Kansas and Oklahoma, spawning a major outbreak of more than three dozen tornadoes, of which several cause fatalities. One tornado in Oklahoma hits the farm where scenes from the movieTwister were filmed. The 24 tornadoes reported in Oklahoma was the fourth highest 24-hour total ever recorded in the state.
11 May 1953, Waco, Texas: A terrifying F5 tornado rips through downtown Waco, Texas, killing 114 people and injuring nearly 600 more. More than 850 homes, 600 businesses, and 2,000 cars are destroyed or severely damaged. Losses have been estimated ay $41 million ($275 million in 2002 dollars). The tornado is the deadliest in Texas history and the tenth deadliest in the US.
11 May 2003, Nashville, Tennessee: A total of 4.63 inches (117.6 mm) of rain fall, breaking the previous 24-hour record for the month.
11 May 2004, Hartley, Texas: A tornado derails a Burlington Northern Santa Fe train, sending 15 empty coal cars and two locomotives off the tracks near this Panhandle town.
12 May 1971, Casa Grande, Arizona: A duststorm drops visibility on Interstate Highway 10 near Casa Grande to near zero, causing chain reaction accidents that kill seven persons.
13 May 1930, Lubbock, Texas: A severe hailstorm kills a man caught in an open field northwest of Lubbock TX. It was the first authenticated death by hail in U.S. weather records.
13 May 2008, Shreveport-Bossier, Louisiana: Torrential rainfall breaks several records, including the most rain to fall in a 20-minute interval and the most rainfall in a 180-minute period. More than 10 inches (254 mm) of rain deluged the Shreveport area, flooding at least 125 homes. The National Weather Service reports 4.43 inches (113 mm) fell in one hour braking the old record of 3.16 inches (80 mm).
13 May 2012, New Mexico: A tornado spins up over the mountains of New Mexico. In Socorro County, a tornado touches down at around 1:45 pm local time.
14 May 1896, Climax, Colorado: The mercury plunges to -10°F (-23.3°C), at the time an American cold record for May.
15 May 1968, Anchorage, Alaska: Only tornado of record to have ever touched down in Alaska strikes near Anchorage.
16 May 1997, Sioux City, Iowa: Sioux City sets daily high and low records on same day: 91°F (32.8 °C) and 22°F (-5.6 °C), respectively. The record is fortuitous as on no earlier spring date was the record low temperature so high, and on only one May date was the record high any lower.
17 May 1979, Mauna Kea, Hawaii: All time record low for the state of 12 °F (-11 °C) is observed at Mauna Kea Observatory.
17-20 May 2009, Bunnell, Florida: 1By late Wednesday, Bunnell, in Flagler County, totals 23.75 inches (600 mm) of rain since Sunday. Rainfall on Wednesday alone totaled 9.27 inches (235 mm) at Jacksonville Naval Air Station and 6.74 inches (171 mm) at Daytona Beach.
18 May 1960, Salt Lake City, Utah: Salt Lake City receives an unexpected inch of snow, the latest measurable snowfall recorded to date.
18 May 2011, Philadelphia, Pennsylvania: An EF-0 tornado touches down in northeastern Philadelphia damaging a commercial building by causing the roof to collapse. Two workers suffer minor injuries. The tornado ss on the ground for 300 feet (90 m)and measured 100 feet (30m) wide.
19 May 1780, New England States: A smoky blackness settles over New England, possibly due to massive forest fires burning in western states. It is so dark that by noon, people have to light candles and lamps to see.
19 May 1955, Lake Maloya, New Mexico: Lake Maloya records 11.28 inches (28.65 cm) of rain in 24 hours, the state record.
19 May 2008, Southwest: Even by American desert standards, the searing heat is one for the books. Death Valley, Califrnia sizzles at 120°F (48.9°C) while residents of Phoenix, Arizona witness the year's first high of 110°F (43.3°C).
19 May 2009, Minnesota : At 4pm ,Granite Falls in southwestern Minnesota bakes with a temperature of 100°F (37.8°C) while residents of Grand Marais3 on the Lake Superior shore shiver with a 34°F (1.1°C reading: a difference of 66 F) degrees (36.7 C degrees)
20 May 1916, 1917, 1918, Codell, Kansas: Codell is hit by a tornado on May 20th for three consecutive years. Each successive one is more damaging. The tornadoes are estimated to be F2, F3 and F4 respectively on the Fujita Scale.
20 May 1966, Hilo, Hawaii: Hilo's hottest day on record: 94°F (34.4°C)
21 May 1860, Ohio Valley: A swarm of tornadoes strike the cities of Louisville, Kentucky, Cincinnati, Ohio, Chillicothe, Ohio, and Marietta, Ohio, causing an estimated million dollars in damage.
22 May 1911, Lewiston, Maine: The temperature soars to 101 °F (38.3 °C), the hottest temperature recorded to date in New England during May.
22-23 May 1996, Ninnekah, Oklahoma: A heat burst sends the temperature soaring from the low 80s F (~28 °C) to 105 °F (40.6 °C), between 11 pm and 3 am.
22 May 2006, Las Vegas, Nevada: Las Vegas reports its lowest May barometric pressure on record:982 mb (29.27 inches)
22 May 2011, Joplin, Missouri: The deadliest tornado to hit the United States since 1953 rips through Joplin in the late afternoon. The F5 multiple-vortex tornado tore a 6 miles (10-km) long path across the city, ripping into a hospital, crushing cars and leaving a forest of splintered tree trunks behind where entire neighborhoods once stood. Much of the city’s south side was levelled, with churches, schools, businesses and homes reduced to ruins. The death toll reached 154 people
23 May 1882, Washington, Iowa: An unusual late season snowfall blankets Washington area with 4-6 inches (10-15 cm).
24 May 1894, Kentucky: Second major snowfall in less than a week whitens parts of Kentucky.
24 May 2010, Plains States: Huge hail stones drop onto sections of Nebraska and South Dakota, including two reports of hail reaching grapefruit size. Hail nearly the size of softballs was reported in Kimball County, Nebraska and Fall River County, South Dakota.
24 May 2011, Plains States: Today marks the fourth straight day with double-digit reports of tornadoes across the nation's Heartland with 47 tornado reports from Texas, Oklahoma, Kansas, Colorado, and Arkansas. The number of severe weather reports for the day tallies 476. The latest storms kill at least 13 --- eight people in Oklahoma and two in Kansas--- before trekking into Arkansas to claim three more lives. One tornado headed for the NOAA Storm Prediction Center in Norman,Oklahoma before veering off.
25 May 1955, Blackwell, Oklahoma: Two tornadoes strike the town within a few minutes. The late-evening tornadoes kill 18 persons and injure over 500.
25 May 2011, Chico, California: On the fifth consequetive day of tornadic weather across the United States, a small twister was reported southwest of Chico, one of 81 tornadoes this day in the US.
25-26 May 2003, Hilo, Hawaii: Daily high and low records both fall on consecutive days in Hilo. May 25 records record low of 60 °F (15.6 °C) and record high of 91 °F (32.8 °C), the next day records of 60 °F (15.6 °C) and 88 °F (31.1 °C) are registered.
26 May 1955, Udall, Kansas: An early-morning a tornado virtually obliterates the small community of Udall killing 80 persons and injuring 270.
26 May 2012, Vichy-Rolla, Missouri: Vichy-Rolla, soars to 98°F (36.7°C), beating its all-time May heat record of 95°F (35°C) set on May 15, 1899.
26 May 2010, New England and New York: Daily high termperature records fall across the region with several setting all-time highs for the month of May, including Hartford, Connecticut, 99 °F (37.2 °C); Providence, Rhode Island, 96°F (35.6 °C), Massena, New York 94°F (34.4 °C); Burlington, Vermont, 92°F (33.3 °C) and Portland, Maine, 91°F (32.8 °C).
26-27 May 2005, Seattle-Tacoma, Washington: PNW heat times two. High temperatures of 89 °F (31.7 °C) on the 26th and 27th at SeaTac International Airport breaks daily maximum records. The first breaks a 58-year-old record, the second a 33-year-old record for the date.
27 May 1896, St Louis, Missouri: Massive tornado strikes Saint Louis killing 306 persons and causing thirteen million dollars damage. The tornado path is short, but cut across a densely populated area. The tornado was the most destructive of record in the U.S. up until that time.
27 May 1931, Clay County, Minnesota: Tornado broadsides the Great Northern Railway's transcontinental passenger train The Empire Builder heading eastbound from Seattle to Chicago. 57 injured, and one killed.
27 May 2003, Broward Counties, Florida: As much as 11 inches (280 mm) of rain fall during the afternoon and evening hours in eastern Broward County, flooding streets with up to two feet (0.6 m) of water.
27 May 2012, Rockford, Illinois: The Rockford official thermometer soars to 99°F (37.2°C) a local record and also the highest officially observed temperature in the US. At least sixteen airports in the Midwest record their hottest May day on record
28 May 1947, Gay Mills, Wisconsin:Ten inches (25 cm) of snow down trees and power lines.
28 May 2003, Battle Mountain, Nevada: A new Nevada maximum temperature record for May is set when the high temperature rises to 102 °F (38.9 °C).
28-29 May 1877, Yuma Arizona: Two-day long sandstorm blasts Yuma.
28-29 May 1947, Wisconsin: An unprecedented late-spring snowstorm blasts portions of the Midwest from northern Iowa to eastern Upper Michigan. Hardest-hit is southwest Wisconsin where 10 inches (25 cm) of snow fell just south of La Crosse. The heavy snow causes severe damage to power and telephone lines and the already-leafed-out vegetation.
29 May 1988, Austin, Nevada: A powerful cold front brings snow and high winds to Nevada, blanketing Austin with 10 inches (25 cm) of snow
29 May 2000, Death Valley, California: A new national maximum temperature record for May is set when the high temperature in Death Valley soars to 122 °F (50 °C).
30 May 1879, Irving, Kansas: Severe weather rolls across Kansas and western Missouri. Two tornadoes devastate the town of Irving, virtually wiping the small Kansas community off the map. Thirty die. The second tornado, perhaps two miles wide, exhibits multiple vortices.
30 May 2007, Seattle, Washington: Afternoon temperature peaks at 87°F (30.6 °C) at Seattle's Sea-Tac Airport, tying the record high set in 1956.
30 May 2012, Carteret County, North Carolina: A tropical depression, the remnants of Tropical Storm Beryl, produces a tornado that destroys three homes and damages 40 to 50 homes near Peletier in western Carteret County.
31 May 1889, Johnstown, Pennsylvania: Great flash flood kills over 2200 residents as dam bursts.
31 May 1998, Southeast Michigan: During the early morning hours, a derecho strikes southeast Michigan across the Saginaw Valley, Thumb and Flint areas. Its 70 mph (112 km/h) winds result in two deaths, two injuries and widespread damage. The storm had formed over Wisconsin late the previous night where damage totalled about $60 million to property and $1.82 million to crops.
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May 1141, Wellesbourne in Warwickshire, Britain: The earliest known severe hailstorm in Britain strikes, one or more fatalities may have been caused by hail.
1 May 1986, China: Hailstones up to 5 kg (11 lb) are reported in China. 16 people are killed and 125 injured. (The Chinese story does seem not very credible, however for size of the stone.)
2 May 2008, Myanmar: Tropical Cyclone Nargis, a Category 4 storm on the Safir-Simpson Scale, hammers the Myanmar coast with peak winds near 213 km/hr (132 mph). The cyclone wreaks havoc in Yangon and the Irrawaddy delta town of Bassein and many coastal villages are washed away. After three weeks, the official death toll reaches 84,537 dead, with 53,836 still missing.
2 May 2010, Bangladesh: Lightning strikes kill at least 16 people dead and leave scores of others injured in parts of Bangladesh, six in the northeastern district of Habiganj.
2-4 May 2002, Locarno Magadino, Switzerland: Total rainfall for the 60 hours ending 0600GMT 4 May is 493 mm (19.4 inches).
3 May 2001, Thori, Nepal: Hailstorm drops stones as large as a kilogram (2.2 lb) on this remote Nepalese village. Damage includes 800 thatched-roof homes destroyed, crops and lifestock killed, an one person dead, 25 injured.
3 May 2011, Auckland, New Zealand: A powerful tornado smashes through Auckland leaving three dead and about 20 injuried. With winds are estimated to be 200 km/h (125 mph), the storm strikes around 3 pm and cuts a path through the northern suburbs of the nation's biggest city, dying out as it neared the city center. The damage swath stretches for about 5 km (3 miles).
4 May 1961, Trombe d'Evereau, France: A multiple vortex tornado kills one and injures 100 along an 8-km (5 mile) path.
5 May 1993, Mongolia and Northwest China: Four-day sandstorm rages on hurricane-force winds. Reports of 47 deaths come from Sansu Province. As many as 300,000 head of livestock die in Inner Mongolia.
5 May 2003, Brahmanbaria District, Bangladesh: A severe thunderstorm strikes eastern Bangladesh claiming at least 22 lives. Winds gust as high as 120 km/hr (75 mph) accompanied by hail and heavy rain, flattening hundreds of mud houses.
6 May 2001, Volga and Ural Regions, Russia: Flooding on the Belaya River inundates 4,881 buildings, 17 bridges and 17,800 km of roads were inundated in the Volga and Ural regions.
6 May 2012, Tsukuba, Japan: A tornado rages through the residential district of Tsukuba, killing one person, injuring dozens, and destroying scores of houses. The tornado carved a path of destruction 15 km (9.4 miles) long and 500 meters (546 yards) wide.
7 May 2010, Shaoguan, China: Heavy across southern China floods the streets of Shaoguan with waist high water.
8 May 1360, Chartres, France: Thousands are reported killed in severe hailstorm.
8 May 2004, Qishi, China: A tornado rips through this Guangdong province town around noon, killing two and injuring 85. The storm severely damages 474 homes.
8 May 2004, Princ Christian Sund, Greenland: Heavy precipitation his the Sund with an accumulation of 54 mm (2.12 inches)
9 May 1978, Tummel Bridge, (Tayside) Great Britain: Greatest 24-hour temperature range in Britain: 29 °C (52.2 °F), from -7 °C (19.4 °F) to 22 °C (71.6 °F)
9 May 1990, Coastal India: Cyclone hits India, killing 1000 people. Storm surge measured at 6.7 m (22 ft).
9-15 May 2002, Central and Southeastern India: A severe heat wave affects much of central and southeastern India with daily high temperatures reached as high as 50°C (122°F). Heat results in over 1,000 deaths as .
10 May 1899, Hondo Coal Mine, Mexico (100 miles south of Eagle Pass, Texas): Tornado strikes coal mine, killing 22 and tossing coal cars over 100 yards (91 metres).
10–11 May 1986, Bangkok, Thailand: Bangkok receives 401.1 mm (15.79 inches) of rain in 24-hours, a national record.
11 May 2009, Auckland, New Zealand: A mini-tornado damages half a dozen homes north of Auckland as it tore through residential neighborhoods. In the Western Bay of Plenty, observers watch five waterspouts offshore from their homes at Town Point.
11 May 2009, Patagania, Argentina: Unusually heavy rain falls over the desert at the northern edge of Argentine Patagania: 47 mm (1.85 inches) at Neuquen, where an "average" year only gets about 15 mm (0.59 inches)of rain.
12 May 1916, Plumb Point, Jamaica: 452 mm (17.80 inches) of rain falls in 15 minutes to set a world record.
12 May 2011, Taipei, Taiwan: A tornado reportedly touches down in Taipei. The storm flips a few motor vehicles, and some trees are uprooted.
13 May 1922, Montpelier, France: A mid-afternoon hailstorm drops 10-15mm diameter hailstones in Montpelier. Along the half km (550 yard) wide and 5-6 km (3-4 mile) long hail swath, ice lay 10 cm (4 inches) deep with local piles 50-60 cm (20-24 inches) deep.
13 May 1996, Tangail, Bangladesh: Several towns near Tangail (northwest of Dhaka) are levelled by a large tornado that lasted about 20 minutes. The final death toll exceeds 1,000, with 34,000 injuries and 100,000 are left homeless.
13 May 2007, Israel: A torrential rainstorm dumps 50 mm (1.97 inches) of rain near the Qumran archaeological site in the Judean desert close to the Dead Sea. The resulting flash flood drowns four Israeli hikers. The area typically receives about 50 mm (2 inches) of rain each year.
13 May 2012, Canary Islands: Two British tourists die and at least six others suffer health problems as temperatures soar to over 40°C (104°F).
14 May 1965, London, England: High temperature for the day registers at 28.9°C (84°F). It would be the hottest temperature Londoners would see that year, and the earliest date for the annual maximum temperature since at least 1875,
15 May 1697, Hertfordshire, Great Britain: A hailstorm, rated H8 on the TORRO hail scale, tracks from Hitchin to Great Offley.
15 May 2010, Heilongjiang Province, China: A deadly tornado strik Chinaes in the northeastern province of Heilongjiang killing at least seven people and injuring around one hundred others.
15–24 May 1951, The Bahamas: Hurricane Able does loop-the-loop north of the Bahamas and reaches Category 3 strength off Cape Hatteras, North Carolina.
16 May 1898, Eden, New South Wales, Australia: At least 20 waterspouts are spawned by a huge cumulonimbus cloud off Eden. The first was "as straight as a shaft, and was estimated to be thirty times as high as a clipper ship, say 5,000 feet," according to D.R. Crichton, a mining engineer.
17 May 1935, Central Netherlands: The latest observed spring snowfall in the central Netherlands.
17 May 2005, Orissa, India: High temperatures soar to 50°C (122°F) in some locations in the Indian state of Orissa.
17–21 May 1887, Cuba and the Bahamas: Early season tropical storm rakes Cuba and the Bahamas.
17-30 May 2003, Hyderabad, India: The death toll from a two-week heat wave in southern India climbed to 637. At least 119 deaths have been reported in Nalgonda and 85 in East Godavari where the temperature soared to 47.5 °C (117°F).
18 May 2009, Iceland: Over the weekend and early this week, Iceland records temperatures well above normal, at times rising to 20 °C (68°F) at Thingvellir National Park and 19 °C (66°F)..
18–20 May 2003, American Samoa: The heaviest rainfall in nearly 20 years affects the islands, causing mudslides that killed 4 people. Rainfall at Pago-Pago on the 19th totals 271 mm (10.68 inches).
18-25 May 2004, Hispanola: A low-pressure system brings exceptionally heavy showers and thunderstorms to Haiti and the Dominican Republic. Rainfall amounts exceeding 500 mm (19.7 inches) and causes major flooding. The number of dead and missing reaches 3300 people.
19 May 1257, Windsor to St Albans, England: On St. Dunstan's Day, a tornado travels from Windsor to St Albans is described as a "marvellous sore tempest of weather, the air being darkened on every side from the four corners thereof, and withal chanced such a thunder as few the like had been heard."
19 May 2004, Rakhine State, Myanmar: A tropical cyclone sweeps through western Myanmar with winds of up to 170 km/h (105 mph), leaving at least 140 people dead and 18,000 people homeless.
19 May 2007, Antioquia Province, Colombia: Heavy rainfall causes severe flooding and landslides that affect more than 600 people and kill at least 13. Hardest hit are the municipalities of Taraza and Valdiva.
19 May 2012, North Atlantic Basin: Tropical Storm Alberto becomes the first storm of the 2012 Atlantic Basin hurricane season. It center is located about 130 miles (208 km) east-southeast of Charleston, SC.
20 May 1729, Bexhill, Sussex, England: A waterspout moves on land at Bexhill and becomes a tornado. The tornado levels many buildings along its path of destruction, 19 km (12 miles) long and on average 342 metres (380 yards) wide.
20 May 1857, Baghdad, (present day Iraq): A dust storm blows all day, and then at about 5 pm, a darkness set in "deeper than the darkest night", terrorizing local residents.
20 May 1999, Southeastern Pakistan: A devastating cyclone, packing winds of up to 270 km/h (170 mph) and a high storm surge, strikes the Sindh Province in southern Pakistan. Some 600 villages are devastated and more than 400 people die.
21 May 1836, Euphrates River, Iraq: A tornadic waterspout sinks a steamship on the River Euphrates.
21 May 1950, Great Britain: A tornado touches down at Little London (Buckinghamshire) and tracks 107.1 km (67 mi) to Coveney (Cambridgeshire). From there it continues as a funnel cloud, another 52.6 km (32.9 mi) to Shipham (Norfolk) where it disappearing out across the North Sea.
21-22 May 2007, South Africa: A cold front sweeping across South Africa sets 54 weather records. Most are for lowest maximum and minimum daily temperatures, with some locations reaching a low minimum temperature of -6°C (21°F) while in some other locations the lowest maximum temperature was 1.7°C (35°F).
22 May 1922, Camden Square, London, England: The United Kingdom records its hottest May day on record when the thermometer hits 32.8°C (91°F).
22-23 May 2010, The Gulf of Aden: A rare tropical cyclone dubbed Bandu brings strong winds and heavy rains to Somalia. The storm then.moves into the Gulf of Aden where it quickly weakens and dissipates on the 23rd as it passes between Yemen and Somalia.
22-24 May 1948, Dominican Republic: An early season hurricane strikes the Island of Hispanola, killing an estimated 80 people.
23 May 2011, Xinjiang Uygur Autonomous Region, China: A spring snowfall covers the famous scenic spot of Kanas Lake and the surrounding grassland and mountains in China's northwestern Xinjiang Uygur Autonomous Region.
24 May 1964, Tokyo, Japan: A tornado damages 480 homes in Tokyo's southwestern suburbs.
22-24 May 2012, Eastern Pacific off the coast of Mexico: Tropical Storm Bud reaches tropical storm status on 22 May, it marked the earliest date since record keeping began in 1949 for formation of the season's second named storm. Bud, with 115 mph (184 km/h) winds, reaches Category 3 status on 24 May, the earliest Category 3 hurricane on record in the Eastern Pacific.
25 May 1920, Fussen, Bavaria, Germany: Fussen rain gauge records 126 mm (5 inches) of rain in just 8 minutes.
26 May 2010, Delhi, India : The temperature in Delhi peaks at 45.2°C (113°F), the hottest temperature recorded there in four years.
26 May 2010, Pakistan: Temperatures soar as high to Pakistan's all-time high temperature as Mohenjo-Daro, Sindh hits 53.7°C (128.6°F).
26-28 May 2001, Southern Chile:A late autumn storm brings heavy rains and powerful winds to southern Chile. It causes rivers to overflow, blocking bridges and roadways, and leaves two individuals dead and approximately 400 homeless.
27 May 2009, Pakistan: 27 May 2009 Blistering heat blasted into northern Sindh and easternmost Balochistan on Wednesday. Leading the way were Sibi, with 50.4 °C (123°F), and Jacobabad, with 50.0 °C (122°F),
28 May 2007, Western and Central Russia: An early season heat wave covers a large of western and central Russia between the Caspian and Black Seas. The temperature peaks in Volgograd at 36.7°C (98°F) while in Moscow, the mercury soars to 32.9°C (91.2°F), easily surpassing May’s previous all time record
29 May 2008, Western and Central Europe: Torrential rainfalls spawn dangerous flash floods and mudslides across Germany, France, Italy, and Belgium. In northern Italy, a mudslide takes three lives. In eastern France and Belgium, the downpours trigger a mudslide that blocks roads and railways.
29 May 2011, Cuba: Hail pelts Cuba and destroys crops. Many parts of the island have seen hail as large as lemons or small oranges that destroy tobacco crops, mango and other fruit trees, as well as unprotected poultry flocks.
29 May 2012, Greenland: The mercury climbs to 24.8°C (76.6°F) at Narsarsuaq, Greenland on the southern coast. According to weather records researcher Maximiliano Herrera, this is the hottest temperature on record in Greenland for May
30 May 2010, Guatamala: Rains from the remnants of Tropical Storm Agatha that pounded an area stretching from southern Mexico nearly to Nicaragua ease over Guatamala after 109 mm (4.3 inches) of rain had fallen in Guatemala City's valley in one 12-hour period and deluged the the coastal community of Champerico had received 300 mm (11.8 inches) of rain in 30 hours. The heavy rains produce rising rivers and deadly landslides that kill at least 99 people in Guatamala
31 May 1911, Southeastern England: Violent Derby Day thunderstorms kill four horses on Epsom Downs. Local flooding/landslides, lightning, and gusts inflict damage across lowland England. Seventeen people are killed in the London area.
This Month in Weather History
|May 1934 The drought across the central United States is the worst in U.S. history, covering more than 75 percent of the country and affecting 27 states severely. Great dust storms spread from the Dust Bowl area eastward. One major storm began on 9 May 1934. Brown dust from Montana and Wyoming was blown eastward over the Dakotas. By evening, 12 million tons of dust fell like snow over Chicago. By midday 10 May, the sky at Buffalo NY was darkened by dust. The advancing dust front stretched south from there over several states, moving as fast as 100 miles an hour. The dawn of 11 May found the dust settling over Boston, New York, Washington, Atlanta, and then the storm moved out to sea.|
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