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Minnesota and United States Climate Extremes

Climate Extremes for Minnesota

Temperature Record Date Location County
Maximum 114 degrees F.    July 29, 1917
July 6, 1936
Beardsley
Moorhead
Big Stone
Clay
Minimum -60 degrees F. February 2, 1996 near Tower St. Louis
Maximum 24-hour change 71 degrees F. April 3, 1982 Lamberton Redwood
Snow        
Maximum 24-hour snowfall 36.0 inches January 7, 1994 near Finland Lake
Maximum single storm snowfall 46.5 inches January 6-8, 1994 near Finland Lake
Maximum seasonal snowfall 170.5 inches 1949-1950 near Grand Portage Cook
Maximum snow cover 75 inches March 28, 1950 near Grand Portage Cook
Earliest measurable snowfall 0.3 inches Sept. 14, 1964 International Falls Koochiching
Latest measurable snowfall 1.5 inches June 4, 1935 Mizpah Koochiching
Rain        
Maximum 24-hour total 10.84 inches July 22, 1972 Fort  Ripley Crow Wing
Maximum annual total 53.52 inches 1991 St. Francis Anoka
Minimum annual total 6.37 inches 1976 Ortonville Big Stone
Longest dry spell 79 days 11/9/43 - 1/26/44 Beardsley, Canby,
Marshall, Dawson
 
Wind        
Maximum measured gust 110 mph (tornado) August 20, 1904 Minneapolis Hennepin
Pressure        
Maximum 31.11 inches January 21, 1922 Collegeville Stearns
Minimum 28.40 inches (est.) January 11, 1975 Grand Portage Cook

What was the coldest windchill ever seen in Minnesota? The answer can be a little tricky because on November 2001 the formula on how to calculate the windchill was changed. Perhaps the coldest windchill the Twin Cities has ever seen was -67 with the new formula (-87 with the old formula) back on January 22nd 1936. The temperature was -34 with a wind speed of 20mph. Without a lengthy state-wide wind record, it is difficult to say when was the coldest statewide windchill. There are some candidate dates though besides January 22, 1936. On January 9th and 10th, 1982 temperatures of -30 and winds of around 40mph were reported in Northern Minnesota. This would translate to -71 by the new formula (-100F by the old formula.)

What about the highest heat index ever reached in the Twin Cities or Minnesota? The heat index is a "feels like" measure which factors together temperature and dew point. The highest heat index value ever recorded in the Twin Cities is believed to be 119 degrees, occurring on July 11, 1966 (our thanks to climate historian Charles Fisk). For Minnesota, an air temperature of 97 degrees teamed with an 84 degree dew point to create a heat index value of 125 degrees at the Red Wing airport at 3:00 pm on July 30, 1999.

Climate Extremes for the United States

Temperature Record Date Location
Maximum 134 degrees F.    July 10, 1913 Greenland Ranch, CA
Minimum -80 degrees F. January 23, 1971 Prospect Creek,  AK
Maximum 24-hour change 100 degrees F. January 23-24, 1916 Browning, MT
Snow      
Maximum 24-hour snowfall 75.8 inches April 14-15, 1921 Silver Lake, CO
Maximum seasonal snowfall 1122.0 inches 1971-1972 Paradise RS, WA
Maximum snow cover 451 inches March 11, 1911 Tamarack, CA
Rain      
Maximum 24-hour total 43.00 inches July 25-26, 1979 Alvin, TX
Maximum annual total 704.83 inches 1982 Kukui, HI
Minimum annual total 0.0 inches 1929 Death Valley, CA
Longest dry spell 767 days 10/3/12 - 11/8/14 Bagdad, CA
Wind      
Maximum measured gust 231 mph April 12, 1934 Mt. Washington, NH
Pressure      
Minimum 26.35 inches (hurricane) September 2, 1935 Matecumbe Key, FL

Climate extremes for the world are available from the National Climatic Data Center.

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URL: http://climate.umn.edu/doc/historical/extremes.htm
Last modified: September 8, 2004