All-time weather records — Thomasboro, IL

Record high
109.0°F
July 14, 1954
Record low
-27.0°F
January 20, 1985
Wettest day
6.15 in
August 6, 1977

Climate change signal in Thomasboro

8.5%

of Thomasboro's all-time daily heat records were set in the last decade (31 of 366 records since 2015).

4.4%

of all-time daily cold records were set in the last decade (16 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
29
13
1900s
49
71
1910s
23
21
1940s
8
1
1950s
37
25
1960s
14
35
1970s
16
41
1980s
41
54
1990s
48
42
2000s
39
41
2010s
53
19
2020s
9
3

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 1896, the latest in 2023. Period of observation: 1893-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 70.0°F — Jan 23, 1909 -27.0°F — Jan 20, 1985 4.60 in — Jan 12, 2019
February 72.0°F — Feb 21, 2016 -24.0°F — Feb 13, 1905 2.00 in — Feb 6, 2008
March 87.1°F — Mar 21, 1907 -13.0°F — Mar 2, 1980 3.15 in — Mar 11, 1990
April 91.0°F — Apr 29, 1899 10.0°F — Apr 2, 2018 4.50 in — Apr 12, 1994
May 99.0°F — May 27, 2012 26.1°F — May 1, 1903 6.01 in — May 27, 1956
June 105.1°F — Jun 23, 1994 36.0°F — Jun 3, 1910 5.09 in — Jun 21, 1900
July 109.0°F — Jul 14, 1954 42.1°F — Jul 2, 1904 5.05 in — Jul 30, 1987
August 102.0°F — Aug 2, 1901 37.9°F — Aug 29, 1986 6.15 in — Aug 6, 1977
September 102.9°F — Sep 5, 1899 24.1°F — Sep 30, 1899 4.00 in — Sep 15, 2008
October 93.0°F — Oct 7, 2007 19.0°F — Oct 28, 1990 4.32 in — Oct 24, 2021
November 82.0°F — Nov 2, 2016 -5.1°F — Nov 24, 1950 2.40 in — Nov 23, 1982
December 75.0°F — Dec 4, 1999 -22.0°F — Dec 22, 1989 2.86 in — Dec 7, 1966

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