All-time weather records — Polk City, IA

Record high
104.0°F
July 23, 2012
Record low
-27.0°F
February 2, 1996
Wettest day
4.45 in
July 24, 1997

Climate change signal in Polk City

37.7%

of Polk City's all-time daily heat records were set in the last decade (138 of 366 records since 2015).

28.1%

of all-time daily cold records were set in the last decade (103 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 #
1990s
43
74
2000s
127
130
2010s
108
101
2020s
88
61

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 1995, the latest in 2026. Period of observation: 1995-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 66.9°F — Jan 26, 2002 -23.1°F — Jan 2, 2010 1.32 in — Jan 2, 2023
February 77.0°F — Feb 26, 2024 -27.0°F — Feb 2, 1996 1.42 in — Feb 24, 2007
March 91.9°F — Mar 21, 2026 -11.9°F — Mar 3, 2014 1.91 in — Mar 30, 1998
April 89.1°F — Apr 13, 2006 12.9°F — Apr 4, 2018 3.08 in — Apr 14, 2012
May 96.1°F — May 26, 2018 28.0°F — May 3, 2005 3.35 in — May 21, 2024
June 100.0°F — Jun 17, 2021 41.0°F — Jun 1, 2001 4.30 in — Jun 25, 2005
July 104.0°F — Jul 23, 2012 48.9°F — Jul 10, 1996 4.45 in — Jul 24, 1997
August 102.9°F — Aug 30, 2013 46.0°F — Aug 12, 2004 3.97 in — Aug 10, 2010
September 100.9°F — Sep 9, 2013 30.0°F — Sep 29, 2003 3.64 in — Sep 25, 2017
October 93.0°F — Oct 3, 1997 16.0°F — Oct 27, 1997 2.80 in — Oct 24, 2021
November 81.0°F — Nov 8, 1999 -2.9°F — Nov 12, 2019 3.55 in — Nov 3, 2003
December 73.0°F — Dec 15, 2021 -18.9°F — Dec 31, 2017 2.37 in — Dec 13, 2015

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