All-time weather records — Aurora, MO

Record high
109.0°F
July 31, 1986
Record low
-20.0°F
February 16, 2021
Wettest day
7.46 in
September 25, 1993

Climate change signal in Aurora

26%

of Aurora's all-time daily heat records were set in the last decade (95 of 366 records since 2015).

10.9%

of all-time daily cold records were set in the last decade (40 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 #
1960s
34
17
1970s
42
87
1980s
80
75
1990s
25
67
2000s
38
47
2010s
97
45
2020s
50
28

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 1962, the latest in 2026. Period of observation: 1962-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 73.0°F — Jan 3, 2009 -17.0°F — Jan 20, 1985 3.36 in — Jan 5, 2005
February 82.9°F — Feb 24, 2017 -20.0°F — Feb 16, 2021 2.90 in — Feb 24, 2018
March 90.0°F — Mar 21, 2026 -0.9°F — Mar 3, 2014 4.82 in — Mar 18, 2008
April 95.0°F — Apr 18, 2006 15.1°F — Apr 8, 2007 3.92 in — Apr 30, 2017
May 93.9°F — May 26, 2012 28.9°F — May 3, 1976 4.00 in — May 20, 1979
June 102.9°F — Jun 27, 2012 41.0°F — Jun 1, 1972 3.70 in — Jun 11, 1981
July 109.0°F — Jul 31, 1986 46.9°F — Jul 5, 1997 3.50 in — Jul 30, 2013
August 109.0°F — Aug 2, 2011 44.1°F — Aug 29, 1986 7.17 in — Aug 13, 1982
September 104.0°F — Sep 13, 2011 35.1°F — Sep 21, 1983 7.46 in — Sep 25, 1993
October 106.0°F — Oct 15, 1982 17.1°F — Oct 19, 2022 5.33 in — Oct 8, 2009
November 86.0°F — Nov 9, 2006 3.0°F — Nov 29, 1976 4.76 in — Nov 25, 1987
December 78.1°F — Dec 26, 2025 -15.0°F — Dec 22, 1989 7.45 in — Dec 27, 2015

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