All-time weather records — Colona, IL

Record high
102.9°F
July 24, 2012
Record low
-27.9°F
February 3, 1996
Wettest day
7.53 in
June 17, 1990

Climate change signal in Colona

15.8%

of Colona's all-time daily heat records were set in the last decade (58 of 366 records since 2015).

7.1%

of all-time daily cold records were set in the last decade (26 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 #
1930s
·
·
1940s
34
46
1950s
38
46
1960s
33
40
1970s
36
67
1980s
52
64
1990s
47
30
2000s
40
30
2010s
60
32
2020s
26
11

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 1941, the latest in 2026. Period of observation: 1938-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 63.0°F — Jan 4, 1997 -25.1°F — Jan 31, 2019 1.95 in — Jan 12, 1960
February 73.0°F — Feb 28, 2024 -27.9°F — Feb 3, 1996 2.50 in — Feb 25, 2008
March 82.9°F — Mar 29, 1986 -14.1°F — Mar 6, 1960 3.25 in — Mar 28, 2020
April 88.0°F — Apr 18, 1977 10.9°F — Apr 4, 1975 4.20 in — Apr 11, 2021
May 95.0°F — May 28, 2018 28.0°F — May 3, 2005 3.08 in — May 17, 1974
June 100.0°F — Jun 12, 1987 42.1°F — Jun 4, 1945 7.53 in — Jun 17, 1990
July 102.9°F — Jul 24, 2012 48.0°F — Jul 30, 1971 4.20 in — Jul 22, 2017
August 102.9°F — Aug 17, 1983 43.0°F — Aug 28, 1986 4.26 in — Aug 26, 1987
September 97.0°F — Sep 1, 1953 28.0°F — Sep 28, 1942 4.58 in — Sep 21, 1947
October 91.0°F — Oct 4, 2006 18.0°F — Oct 26, 1942 3.43 in — Oct 18, 1998
November 78.1°F — Nov 2, 2000 -4.0°F — Nov 29, 1976 2.24 in — Nov 27, 2015
December 71.1°F — Dec 16, 2021 -20.9°F — Dec 23, 1983 3.37 in — Dec 27, 1942

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