All-time weather records — Zimmerman, MN

Record high
102.0°F
June 7, 2021
Record low
-40.0°F
January 19, 1943
Wettest day
6.60 in
June 25, 2003

Climate change signal in Zimmerman

59.6%

of Zimmerman's all-time daily heat records were set in the last decade (218 of 366 records since 2015).

59.3%

of all-time daily cold records were set in the last decade (217 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 #
1940s
13
25
1950s
·
·
1960s
·
·
1970s
·
·
1980s
·
·
1990s
·
·
2000s
42
53
2010s
162
158
2020s
149
130

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 1943, the latest in 2026. Period of observation: 1940-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 55.0°F — Jan 18, 1944 -40.0°F — Jan 19, 1943 1.75 in — Jan 1, 2007
February 62.1°F — Feb 18, 2017 -29.9°F — Feb 16, 2021 1.75 in — Feb 28, 1948
March 79.0°F — Mar 19, 2012 -20.0°F — Mar 3, 2019 1.80 in — Mar 12, 1966
April 89.1°F — Apr 14, 2023 3.9°F — Apr 4, 2018 3.08 in — Apr 23, 2001
May 99.0°F — May 29, 2018 21.0°F — May 8, 2017 3.73 in — May 21, 1953
June 102.0°F — Jun 7, 2021 35.1°F — Jun 1, 2021 6.60 in — Jun 25, 2003
July 98.1°F — Jul 2, 2011 46.9°F — Jul 1, 2016 5.38 in — Jul 2, 1944
August 98.1°F — Aug 23, 2023 35.1°F — Aug 4, 2020 4.56 in — Aug 28, 1960
September 96.1°F — Sep 3, 2023 30.0°F — Sep 30, 2018 5.04 in — Sep 8, 1991
October 91.0°F — Oct 2, 2023 12.9°F — Oct 27, 2020 4.00 in — Oct 5, 2005
November 75.9°F — Nov 3, 2022 -2.9°F — Nov 28, 2014 1.90 in — Nov 20, 1975
December 55.9°F — Dec 3, 1943 -29.9°F — Dec 12, 1942 1.43 in — Dec 28, 1982

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