All-time weather records — Chesterton, IN

Record high
102.0°F
July 31, 1999
Record low
-22.0°F
January 31, 2019
Wettest day
7.76 in
August 18, 1990

Climate change signal in Chesterton

34.7%

of Chesterton's all-time daily heat records were set in the last decade (127 of 366 records since 2015).

25.4%

of all-time daily cold records were set in the last decade (93 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 #
1980s
6
12
1990s
90
136
2000s
87
70
2010s
109
98
2020s
74
50

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 1989, the latest in 2026. Period of observation: 1989-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 66.0°F — Jan 8, 2008 -22.0°F — Jan 31, 2019 3.32 in — Jan 8, 2008
February 73.9°F — Feb 28, 2024 -15.0°F — Feb 3, 1996 1.84 in — Feb 21, 1997
March 84.9°F — Mar 22, 2012 -4.0°F — Mar 4, 2002 2.64 in — Mar 1, 2017
April 88.0°F — Apr 16, 2002 18.0°F — Apr 6, 2018 2.04 in — Apr 25, 2007
May 95.0°F — May 28, 2012 30.0°F — May 3, 2023 5.71 in — May 10, 1996
June 98.1°F — Jun 29, 2012 37.0°F — Jun 1, 1993 5.45 in — Jun 14, 1994
July 102.0°F — Jul 31, 1999 45.0°F — Jul 6, 2001 4.20 in — Jul 18, 1996
August 98.1°F — Aug 3, 1991 45.0°F — Aug 27, 2025 7.76 in — Aug 18, 1990
September 96.1°F — Sep 11, 2013 35.1°F — Sep 30, 1993 4.75 in — Sep 13, 2008
October 89.1°F — Oct 2, 2019 23.0°F — Oct 31, 2023 3.70 in — Oct 26, 2022
November 77.0°F — Nov 2, 2016 7.0°F — Nov 20, 2022 3.87 in — Nov 28, 1990
December 69.1°F — Dec 6, 2001 -18.9°F — Dec 22, 1989 1.62 in — Dec 7, 1998

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