All-time weather records — Bloomington, WI

Record high
108.0°F
July 14, 1936
Record low
-31.0°F
January 23, 1963
Wettest day
60.00 in
March 7, 1982

Climate change signal in Bloomington

9.8%

of Bloomington's all-time daily heat records were set in the last decade (36 of 366 records since 2015).

2.5%

of all-time daily cold records were set in the last decade (9 of 366 records since 2015).

If records were spread evenly across the station's history, you'd expect roughly 5% per decade. Decade-by-decade, here's where each record-breaking day was set:

Decade Heat records set # Cold records set #
1890s
33
45
1900s
24
50
1910s
29
38
1920s
17
22
1930s
64
29
1940s
33
29
1950s
26
15
1960s
12
27
1970s
9
37
1980s
29
30
1990s
17
22
2000s
19
8
2010s
28
13
2020s
26
1

Records are the all-time daily extremes that are still standing — each daily record can only be held by one year. The station's earliest hot record was set in 1893, the latest in 2026. Period of observation: 1893-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 79.0°F — Jan 30, 1917 -31.0°F — Jan 23, 1963 2.06 in — Jan 29, 2013
February 71.1°F — Feb 28, 2024 -31.0°F — Feb 2, 1996 2.00 in — Feb 26, 2002
March 84.0°F — Mar 30, 1986 -22.0°F — Mar 1, 1962 60.00 in — Mar 7, 1982
April 95.0°F — Apr 22, 1980 6.1°F — Apr 6, 1982 4.56 in — Apr 25, 2008
May 104.0°F — May 31, 1934 12.9°F — May 7, 1933 3.18 in — May 15, 1909
June 100.0°F — Jun 1, 1934 34.0°F — Jun 13, 1941 4.60 in — Jun 25, 2005
July 108.0°F — Jul 14, 1936 42.1°F — Jul 8, 1901 6.17 in — Jul 26, 1940
August 102.9°F — Aug 3, 1930 34.0°F — Aug 30, 1915 4.50 in — Aug 21, 1966
September 100.0°F — Sep 7, 1939 19.9°F — Sep 30, 1899 5.75 in — Sep 13, 1961
October 91.9°F — Oct 6, 1963 3.0°F — Oct 29, 1925 3.17 in — Oct 2, 2018
November 77.0°F — Nov 7, 1915 -15.0°F — Nov 26, 1977 4.01 in — Nov 4, 2003
December 68.0°F — Dec 16, 2021 -27.0°F — Dec 19, 1983 2.05 in — Dec 13, 1991

Click a month to see every daily record for that month in Bloomington.