All-time weather records — Calais, ME

Record high
97.0°F
June 19, 2020
Record low
-20.0°F
January 16, 2004
Wettest day
6.66 in
December 13, 2010

Climate change signal in Calais

39.9%

of Calais's all-time daily heat records were set in the last decade (146 of 366 records since 2015).

20.5%

of all-time daily cold records were set in the last decade (75 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 #
1990s
54
96
2000s
108
157
2010s
115
81
2020s
89
32

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 1994, the latest in 2026. Period of observation: 1994-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 57.0°F — Jan 13, 2018 -20.0°F — Jan 16, 2004 4.32 in — Jan 24, 1998
February 63.0°F — Feb 23, 2022 -18.9°F — Feb 4, 2023 3.62 in — Feb 13, 2008
March 82.9°F — Mar 22, 2012 -9.0°F — Mar 7, 2007 3.03 in — Mar 8, 2008
April 82.9°F — Apr 23, 2007 8.1°F — Apr 5, 1995 3.35 in — Apr 19, 2022
May 91.9°F — May 31, 2013 24.1°F — May 9, 2006 4.12 in — May 6, 2017
June 97.0°F — Jun 19, 2020 35.1°F — Jun 4, 2002 2.83 in — Jun 8, 2013
July 97.0°F — Jul 17, 1999 44.1°F — Jul 27, 2001 4.17 in — Jul 5, 2014
August 95.0°F — Aug 1, 1995 41.0°F — Aug 25, 2003 4.29 in — Aug 26, 2015
September 95.0°F — Sep 1, 2010 28.9°F — Sep 24, 2008 4.23 in — Sep 16, 2023
October 82.0°F — Oct 2, 2002 21.9°F — Oct 19, 2008 3.96 in — Oct 20, 2012
November 73.0°F — Nov 5, 2022 5.0°F — Nov 22, 2018 3.32 in — Nov 3, 2007
December 61.0°F — Dec 1, 2020 -8.0°F — Dec 16, 2016 6.66 in — Dec 13, 2010

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