<![CDATA[Minnesota’s 20 Hottest Extended Heatwaves Occurred Below 350 PPM CO2]]>The five month period from May-Sep 1988 was the hottest five month period in Minnesota history, followed closely by 1894. All of the top 20 occurred below 350 ppm CO2.
Hottest 5 month periods in Minnesota
Rank Month Year Average maximum Temperature
1 9 1988 80.7922
2 9 1894 79.85
3 9 1936 79.8109
4 9 1933 79.7281
5 9 1976 79.3234
6 9 1931 78.4344
7 9 1939 78.3094
8 9 1921 78.2406
9 9 1934 78.2172
10 9 1922 78.1875
11 8 1988 78.1719
12 9 1955 78.1578
13 9 1987 77.95
14 9 1980 77.6312
15 10 1894 77.5813
16 10 1931 77.5578
17 9 1932 77.4891
18 9 1900 77.4062
19 9 1937 77.2953
20 9 1930 77.2672
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