Minnesota Climate Extremes

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 15.10 inches August 19, 2007 Hokah Houston
Maximum monthly total 23.86 inches August 2007 Hokah Houston
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 117 mph July 19, 1983 Alexandria Douglas
Pressure        
Maximum 31.11 inches January 21, 1922 Collegeville Stearns
Minimum 28.21 inches October 26, 2010 Bigfork Itasca

What was the coldest wind chill temperature ever recorded in Minnesota? The answer can be tricky because the National Weather Service began to use a modernized wind chill formula in November 2001. Perhaps the coldest wind chill the Twin Cities has ever seen was -63 with the new formula (-77 with the old formula) back on January 22nd 1936. The temperature was -34 with a wind speed of 15 mph. Without a lengthy state-wide wind record, it is difficult to say when was the coldest statewide wind chill. 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 Information from the National Climatic Data Center


For more information contact: climate@umn.edu