All-time weather records — Casey, IL

Record high
102.0°F
July 21, 1983
Record low
-22.0°F
January 27, 1904
Wettest day
6.43 in
October 5, 2000

Climate change signal in Casey

33.6%

of Casey's all-time daily heat records were set in the last decade (123 of 366 records since 2015).

20.5%

of all-time daily cold records were set in the last decade (75 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
82
91
1900s
90
109
1910s
15
15
1920s
·
·
1930s
·
·
1940s
·
·
1950s
·
·
1980s
48
69
1990s
6
2
2000s
·
·
2010s
53
40
2020s
72
40

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 80.1°F — Jan 3, 1907 -22.0°F — Jan 27, 1904 4.75 in — Jan 31, 1916
February 75.9°F — Feb 21, 2016 -22.0°F — Feb 13, 1905 4.01 in — Feb 11, 2009
March 88.0°F — Mar 23, 2026 -4.0°F — Mar 7, 1899 3.93 in — Mar 14, 1922
April 89.1°F — Apr 27, 1906 18.0°F — Apr 7, 1982 3.89 in — Apr 17, 1922
May 98.1°F — May 10, 1907 28.0°F — May 14, 1895 4.00 in — May 7, 1908
June 100.0°F — Jun 19, 1910 35.1°F — Jun 6, 1894 6.32 in — Jun 6, 2008
July 102.0°F — Jul 21, 1983 46.0°F — Jul 2, 1904 4.02 in — Jul 31, 2020
August 102.0°F — Aug 19, 1983 44.1°F — Aug 30, 1893 5.52 in — Aug 29, 1951
September 99.0°F — Sep 5, 1899 25.0°F — Sep 30, 1899 3.86 in — Sep 14, 1989
October 99.0°F — Oct 10, 1897 16.0°F — Oct 11, 1907 6.43 in — Oct 5, 2000
November 82.9°F — Nov 2, 2016 3.0°F — Nov 13, 2019 3.07 in — Nov 2, 1936
December 72.0°F — Dec 2, 1982 -20.9°F — Dec 22, 1989 3.29 in — Dec 18, 1924

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