All-time weather records — Rockton, IL

Record high
109.9°F
July 14, 1936
Record low
-29.0°F
January 31, 2019
Wettest day
6.55 in
June 24, 1898

Climate change signal in Rockton

9%

of Rockton's all-time daily heat records were set in the last decade (33 of 366 records since 2015).

5.5%

of all-time daily cold records were set in the last decade (20 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
13
31
1900s
10
38
1910s
35
47
1920s
29
66
1930s
72
28
1940s
23
19
1950s
33
19
1960s
12
20
1970s
17
19
1980s
33
24
1990s
20
23
2000s
20
8
2010s
26
24
2020s
23
·

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 61.0°F — Jan 8, 2008 -29.0°F — Jan 31, 2019 2.70 in — Jan 12, 1960
February 73.9°F — Feb 28, 2024 -27.9°F — Feb 1, 2019 2.30 in — Feb 9, 2001
March 84.0°F — Mar 30, 1986 -13.0°F — Mar 1, 1962 3.80 in — Mar 22, 1916
April 91.9°F — Apr 22, 1980 7.0°F — Apr 7, 1982 3.90 in — Apr 21, 1973
May 102.9°F — May 31, 1934 25.0°F — May 11, 1980 3.75 in — May 19, 1959
June 104.0°F — Jun 1, 1934 21.0°F — Jun 18, 1985 6.55 in — Jun 24, 1898
July 109.9°F — Jul 14, 1936 42.1°F — Jul 6, 1965 3.95 in — Jul 6, 1943
August 102.0°F — Aug 5, 1918 32.0°F — Aug 30, 1902 5.00 in — Aug 5, 1998
September 100.0°F — Sep 1, 1953 23.0°F — Sep 30, 1899 5.05 in — Sep 2, 1942
October 89.1°F — Oct 1, 1971 3.9°F — Oct 30, 1925 3.45 in — Oct 10, 1954
November 78.1°F — Nov 1, 1933 -11.9°F — Nov 30, 1947 2.90 in — Nov 17, 1928
December 66.9°F — Dec 16, 2021 -25.1°F — Dec 26, 1903 2.00 in — Dec 15, 1971

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