Highs of 90 F or Greater in the Twin Cities

There is no formal definition of "hot weather," because what's hot in one place may seem normal in another. In Minnesota, a 90-degree day is as good a threshold as any. Far northern Minnesota and parts of the north shore of Lake Superior generally average just 1-3 days per year with high temperatures of 90 F or higher per year. Central and eastern Minnesota average 5-10 of these hot days per year. In southern and southeastern Minnesota, it's 10-15 days on average, and parts of southwestern and western Minnesota average 15-20 90-degree days per year.

Based on the 1991-2020 climate normals, the Twin Cities airport averages about 13 days per year with 90-degree F high temperatures. In 1988, the station observed a record 44 such days. There have been three years with no 90 F days in the Twin Cities: 1902, 1915, and 1993.

Following are the top years for 90-degree F high temperatures in the Twin Cities since 1873.

Year

# 90 F days in Twin Cities

Highest Temperature (F)

1988

44

105

1936

36

108

1937

34

100

1934

34

106

2023

33

98

1949

33

101

1933

32

100

2012

31

102

1976

31

100

1955

31

100

1931

30

104

1894

30

100

1959

29

96

2021

27

99

2007

27

98

1964

27

98

1948

27

101

1947

27

102

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Modified May 20, 2024

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