The following is a list of Minnesota weather records observed at various stations across the state during the Over 160 years. Minnesota is a state in the Upper Midwestern region of the United States. Due to its location in the northern plains of the United States its climate is one of extremes. Minnesota's history of nearly continuous meteorological record keeping stretches back two centuries to 1819 when Fort Snelling was settled. By 1871 the first official government observations were taking place in the Twin Cities and by the late 19th century and early 20th century most statewide stations that exist today were in operation.[1][2]

Temperature

Overall

The 1936 North American heat wave caused record-setting temperatures in eight US states.
Event[3]MeasurementDateLocation
Highest Temperature115 °F (46.1 °C)July 29, 1917Beardsley
Lowest Temperature−60 °F (−51.1 °C) February 2, 1996Tower
Largest single-day change72 °F (40 °C)February 2, 1970Nett Lake[4]

By month

Event[1]MeasurementDateLocation
January
Highest Temperature69 °F (20.6 °C)January 24, 1981Montevideo
Lowest Temperature−57 °F (−49.4 °C)January 20, 1869Embarrass
February
Highest Temperature76 °F (24.4 °C)February 26, 1896Pleasant Mound
Lowest Temperature−60 °F (−51.1 °C)February 2, 1996Tower
March
Highest Temperature88 °F (31.1 °C)March 23, 1910Montevideo
Lowest Temperature−50 °F (−45.6 °C)March 2, 1897Pine City
April
Highest Temperature101 °F (38.3 °C)April 22, 1980Hawley
Lowest Temperature−22 °F (−30 °C)April 6, 1979Karlstad
May
Highest Temperature112 °F (44.4 °C)May 31, 1934Maple Plain
Lowest Temperature4 °F (−15.6 °C)May 1, 1909
May 2, 1909		Pine River
June
Highest Temperature110 °F (43.3 °C)June 29, 1931Canby
Lowest Temperature15 °F (−9.4 °C)June 1, 1964Bigfork
July
Highest Temperature115 °F (46.1 °C)July 29, 1917Beardsley
Lowest Temperature24 °F (−4.4 °C)July 7, 1997Tower
August
Highest Temperature110 °F (43.3 °C)August 10, 1947
August 1, 1988		Beardsley
Montevideo
Lowest Temperature21 °F (−6.1 °C)August 28, 1996
August 2, 2002		Tower
Kelliher
September
Highest Temperature111 °F (43.9 °C)September 11, 1931Beardsley
Lowest Temperature10 °F (−12.2 °C)September 30, 1930
September 22, 1974		Big Falls
Thorhult
October
Highest Temperature98 °F (36.7 °C)October 5, 1963Beardsley
Lowest Temperature−16 °F (−26.7 °C)October 26, 1936Roseau
November
Highest Temperature82 °F (27.8 °C)November 30, 2020St Paul
Lowest Temperature−47 °F (−43.9 °C)November 25, 1945Pine City
December
Highest Temperature74 °F (23.3 °C)December 9, 1939Wheaton
Lowest Temperature−57 °F (−49.4 °C)December 31, 1898Pine City

Precipitation

Map of Minnesota showing the snowfall totals from the 1991 Halloween Blizzard.
Event[3]MeasurementDateLocation
Most yearly precip (one location)60.21 inches (1,529 mm)2018Harmony
Least yearly precip (one location)6.37 inches (162 mm)1976Ortonville
Most yearly precip (State average)33.92 inches (862 mm)[5]1977Statewide
Longest dry spell79 daysNovember 9, 1943 -
January 26, 1944		Beardsley, Canby,
Marshall, Dawson

Rain

EventMeasurementDateLocation
Most rain in 24 hours[6]15.10 inches (384 mm)August 18–19, 2007Hokah
Most rain in one month[7]23.86 inches (606 mm)August 2007Hokah

Snow

Event[3]MeasurementDateLocation
Earliest recorded snow[1]TraceAugust 31, 1949Duluth
Earliest measurable snow0.3 inch (1 cm)September 14, 1964International Falls
Latest recorded snow1.5 inches (4 cm)June 4, 1935Mizpah
Most snow, 24 hours36 inches (91 cm)January 7, 1994Lake County
Most snow, one storm47 inches (119 cm)January 6–8, 1994Lake County
Most snow, one month[8]66 inches (168 cm)March, 1965Collegeville
Most snow, season170 inches (432 cm)1949 – 1950Grand Portage State Park
Deepest snowpack[8]75 inches (191 cm)March 28, 1950Pigeon River Bridge
Most fatalities, winter storm[9]up to 200January 12–13, 1888Statewide

Tornadoes

Damage from the 1886 Sauk Rapids tornado, Minnesota's deadliest tornado on record.
Event[10]DateLocation
Most in one day48[11]June 17, 2010Statewide
Most in one month71June 2010Statewide
Most in one year1132010Statewide
Earliest in season[12]March 6, 2017Faribault County
Earliest outbreak in season (2 or more)[13]3March 6, 2017Sherburne, Faribault, and Freeborn counties
Latest in seasonDecember 15, 2021Eyota
Latest outbreak in season (2 or more)[14]22December 15, 2021Dodge, Fairbault, Fillmore, Freeborn, Goodhue, Houston, Mower, Steele, Wabasha, and Winona counties
Most fatalities, single tornado72April 14, 1886St. Cloud, Sauk Rapids, Rice
Most intense damage measured[15]F5June 13, 1968
June 16, 1992		Tracy
Chandler
Longest track
(broken path)[16]		110 miles (177 km)August 26, 1977Otter Tail, Wadena, Cass, Crow Wing counties
Longest track
(continuous path)[16]		67 miles (108 km)March 29, 1998Murray, Cottonwood, Brown, Watonwan, Blue Earth, Nicollet counties
Biggest outbreak48June 2010 Northern Plains tornado outbreakStatewide

Hail

EventMeasurementDateLocation
Largest hailstone6 inches (15 cm) dia.July 4, 1968
July 28, 1986		Edgerton[17]
Reading[18]

Flooding

A bridge connecting East Grand Forks, Minnesota to Grand Forks, North Dakota is submerged during the record flooding of the Red River in 1997.[19]

Record flood stages for selected cities in Minnesota

EventMeasurementDateLocation
Middle Fork, Whitewater River
Highest flood stage[20]19.24 ftAugust 19, 2007Whitewater State Park
Root River
Highest flood stage[20]18.75 ftAugust 19, 2007Houston
Red River of the North
Highest flood stage[21]40.82 ftMarch 28, 2009Moorhead
Highest flood stage[22]54.35 ftApril 22, 1997East Grand Forks
Minnesota River
Highest flood stage[23]23.90 ftApril 6, 1997Montevideo
Highest flood stage[24]35.07 ftApril 12, 1965Jordan
Mississippi River
Highest flood stage[25]26.01 ftApril 16, 1965St. Paul
Highest flood stage[26]20.77 ftApril 19, 1965Winona

Other records

The area of Low pressure that caused the United States' lowest recorded continental atmospheric pressure on October 26, 2010 over Minnesota
EventMeasurementDateLocation
Highest Pressure[3]31.11 inHg (1053.5 mb)January 21, 1922Collegeville
Lowest Pressure[27]28.21 inHg (956 mb)[28]October 26, 2010Bigfork
Highest dew point88 °F (31 °C)July 18, 2011
July 19, 2011		Madison
Moorhead
Highest heat index134 °F (57 °C)July 19, 2011Moorhead
Lowest wind chill (estimated)[3]−100 °F (−73 °C)
(old formula)
−77 °F (−61 °C)
(new formula)		January 9–10, 1982 –
January 29, 2019		Thief River Falls
Highest wind (sustained)[29]121 mph (194 km/h)September 1, 2011Donaldson
Highest wind (gust)[1]180 mph (290 km/h)August 20, 1904St. Paul

See also

General
Large-scale events that affected Minnesota

References

  1. 1 2 3 4 Seeley W., Mark (2006). Minnesota Weather Almanac. Minnesota Historical Society press. ISBN 0-87351-554-4.
  2. ↑ "History of the NWS in the Twin Cities". National Weather Service - Twin Cities. November 9, 2005. Retrieved 2007-06-19.
  3. 1 2 3 4 5 "Minnesota Climate Extremes". Minnesota Climatology Office. Retrieved 2021-07-14.
  4. ↑ "Minnesota Climate Extremes".
  5. ↑ "Warm and Wet 2010". climate.umn.edu. Archived from the original on 2011-01-09.
  6. ↑ "New 24-hour precipitation record established in Minnesota". National Weather Service. August 23, 2007. Retrieved 2007-08-24.
  7. ↑ "Monthly Minnesota Rainfall Record Broken". Minnesota Climatology Office. October 18, 2007. Archived from the original on May 14, 2008. Retrieved 2007-10-19.
  8. 1 2 "Minnesota Snowfall and Snow Depth Extremes". National Climatic Data Center. December 3, 2007. Retrieved 2008-02-01.
  9. ↑ "Famous Minnesota Winter Storms". Minnesota State Climatology Office. March 2, 2007. Archived from the original on January 7, 2009. Retrieved 2007-06-28.
  10. ↑ "Minnesota Tornado History and Statistics". Minnesota Climatology Office. May 21, 2007. Archived from the original on August 11, 2007. Retrieved 2007-06-19.
  11. ↑ 2010 data
  12. ↑ "IEM :: PNS from NWS MPX".
  13. ↑ "Summary of March 06 2017 Severe Weather Outbreak". National Weather Service - Twin Cities. March 7, 2017.
  14. ↑ "Historic, Unprecedented Storm of December 15-16, 2021". National Weather Service - Twin Cities. December 15, 2021.
  15. ↑ "F5 Tornadoes of the United States". Storm Prediction Center.
  16. 1 2 "How Historically Unusual Was This?". The Southern Minnesota Tornadoes of March 29, 1998. NWS - Twin Cities. March 6, 2008. Retrieved 2008-05-08.
  17. ↑ "NCDC Storm Event Database". NCDC. 1950–2021. Retrieved 2022-02-06.
  18. ↑ "NCDC Storm Event Database". NCDC. 1950–2021. Retrieved 2022-02-06.
  19. ↑ Macek-Rowland, K.M. (April 13, 2005). "1997 Floods in the Red River of the North and Missouri River Basins in North Dakota and Western Minnesota". U.S. Geological Survey. Retrieved 2007-07-11.
  20. 1 2 "Historic Rainfall and Flooding Event of August 18-20, 2007". NOAA. Retrieved 2007-08-31.
  21. ↑ "RED RIVER OF THE NORTH AT FARGO, ND". U.S. Geological Survey. Retrieved 2009-06-18.
  22. ↑ "RED RIVER OF THE NORTH AT GRAND FORKS, ND" (PDF). U.S. Geological Survey. Archived from the original (PDF) on 2007-12-03. Retrieved 2007-07-20.
  23. ↑ "MINNESOTA RIVER NEAR MONTEVIDEO, MN" (PDF). U.S. Geological Survey. Archived from the original (PDF) on 2007-12-03. Retrieved 2007-07-20.
  24. ↑ "MINNESOTA RIVER NEAR ALEXANDRIA, MN" (PDF). U.S. Geological Survey. Archived from the original (PDF) on 2007-12-03. Retrieved 2007-07-20.
  25. ↑ "MISSISSIPPI RIVER AT ST. PAUL, MN" (PDF). U.S. Geological Survey. Archived from the original (PDF) on 2007-12-03. Retrieved 2007-07-20.
  26. ↑ "MISSISSIPPI RIVER AT WINONA, MN" (PDF). U.S. Geological Survey. Archived from the original (PDF) on 2007-12-03. Retrieved 2007-07-20.
  27. ↑ "Storm Data and Unusual Weather Phenomena" (PDF). NOAA. Retrieved 2006-11-20.
  28. ↑ "Record Low Pressure Hits Minnesota October 26-27, 2010". Minnesota Climatology Office. October 28, 2010. Archived from the original on October 31, 2010. Retrieved 2010-10-29.
  29. ↑ "121-MPH wind huffed, puffed, blew state record down". Star Tribune.
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