All-time weather records — Vienna, IL

Record high
107.1°F
June 29, 2012
Record low
-99.0°F
March 26, 2018
Wettest day
7.05 in
December 28, 2015

Climate change signal in Vienna

10.7%

of Vienna's all-time daily heat records were set in the last decade (39 of 366 records since 2015).

13.9%

of all-time daily cold records were set in the last decade (51 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
3
24
1970s
30
111
1980s
89
84
1990s
72
48
2000s
81
32
2010s
72
39
2020s
19
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 1967, the latest in 2026. Period of observation: 1967-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 70.0°F — Jan 21, 1986 -20.0°F — Jan 17, 1977 5.09 in — Jan 3, 2000
February 78.1°F — Feb 27, 1996 -9.9°F — Feb 4, 1996 3.27 in — Feb 24, 2025
March 84.9°F — Mar 20, 2012 -99.0°F — Mar 26, 2018 4.11 in — Mar 28, 1977
April 89.1°F — Apr 21, 1987 21.0°F — Apr 7, 1990 5.47 in — Apr 15, 1972
May 93.9°F — May 29, 2012 28.9°F — May 4, 1976 5.52 in — May 27, 1973
June 107.1°F — Jun 29, 2012 39.0°F — Jun 1, 1972 4.60 in — Jun 23, 1969
July 105.1°F — Jul 19, 2011 46.0°F — Jul 31, 1971 5.49 in — Jul 19, 2023
August 102.9°F — Aug 16, 2007 46.0°F — Aug 29, 1986 4.07 in — Aug 24, 1985
September 100.0°F — Sep 2, 2011 32.0°F — Sep 22, 1983 4.35 in — Sep 20, 2002
October 93.9°F — Oct 2, 2019 17.1°F — Oct 24, 1981 4.68 in — Oct 29, 2020
November 82.9°F — Nov 1, 2000 5.0°F — Nov 13, 2019 2.98 in — Nov 24, 1973
December 77.0°F — Dec 2, 1982 -14.1°F — Dec 22, 1989 7.05 in — Dec 28, 2015

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