All-time weather records — Plainfield, IN

Record high
109.0°F
June 28, 2012
Record low
-15.0°F
January 6, 2014
Wettest day
4.01 in
April 3, 2018

Climate change signal in Plainfield

65.8%

of Plainfield's all-time daily heat records were set in the last decade (241 of 366 records since 2015).

66.9%

of all-time daily cold records were set in the last decade (245 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 #
2010s
264
250
2020s
102
116

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 2011, the latest in 2026. Period of observation: 2011-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 66.0°F — Jan 21, 2017 -15.0°F — Jan 6, 2014 1.80 in — Jan 10, 2020
February 77.0°F — Feb 20, 2018 -8.0°F — Feb 20, 2015 1.83 in — Feb 24, 2016
March 87.1°F — Mar 22, 2026 1.0°F — Mar 6, 2015 2.32 in — Mar 3, 2026
April 87.1°F — Apr 3, 2012 21.9°F — Apr 8, 2025 4.01 in — Apr 3, 2018
May 95.0°F — May 28, 2018 28.9°F — May 9, 2020 2.16 in — May 4, 2017
June 109.0°F — Jun 28, 2012 41.0°F — Jun 1, 2025 4.00 in — Jun 15, 2019
July 109.0°F — Jul 7, 2012 51.1°F — Jul 28, 2013 3.85 in — Jul 17, 2015
August 100.0°F — Aug 8, 2012 48.9°F — Aug 15, 2014 2.45 in — Aug 29, 2022
September 100.0°F — Sep 3, 2011 39.0°F — Sep 23, 2012 2.86 in — Sep 7, 2012
October 93.0°F — Oct 1, 2019 24.1°F — Oct 31, 2023 2.01 in — Oct 26, 2019
November 82.0°F — Nov 1, 2016 8.1°F — Nov 12, 2019 2.73 in — Nov 17, 2013
December 70.0°F — Dec 12, 2015 -9.9°F — Dec 23, 2022 2.74 in — Dec 21, 2013

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