All-time weather records — Waterbury, CT

Record high
100.0°F
July 19, 2012
Record low
-15.0°F
February 24, 2015
Wettest day
7.14 in
August 28, 2011

Climate change signal in Waterbury

45.1%

of Waterbury's all-time daily heat records were set in the last decade (165 of 366 records since 2015).

35.8%

of all-time daily cold records were set in the last decade (131 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
366
366
2020s
·
·

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 2017. Period of observation: 2011-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 59.0°F — Jan 13, 2017 -11.0°F — Jan 24, 2011 3.19 in — Jan 10, 2024
February 72.0°F — Feb 25, 2017 -15.0°F — Feb 24, 2015 2.50 in — Feb 25, 2016
March 79.0°F — Mar 23, 2012 -2.0°F — Mar 1, 2014 4.16 in — Mar 7, 2011
April 88.0°F — Apr 17, 2012 14.0°F — Apr 6, 2016 2.34 in — Apr 8, 2022
May 97.0°F — May 19, 2017 28.0°F — May 1, 2012 3.04 in — May 1, 2014
June 97.0°F — Jun 14, 2017 39.0°F — Jun 11, 2016 2.74 in — Jun 14, 2013
July 100.0°F — Jul 19, 2012 48.0°F — Jul 1, 2011 3.21 in — Jul 3, 2021
August 99.0°F — Aug 14, 2016 45.0°F — Aug 30, 2012 7.14 in — Aug 28, 2011
September 95.0°F — Sep 9, 2015 34.0°F — Sep 17, 2013 5.75 in — Sep 2, 2021
October 82.0°F — Oct 18, 2016 18.0°F — Oct 19, 2015 4.86 in — Oct 30, 2017
November 73.0°F — Nov 7, 2015 12.0°F — Nov 29, 2014 2.62 in — Nov 27, 2013
December 68.0°F — Dec 26, 2015 -2.0°F — Dec 17, 2013 2.65 in — Dec 8, 2011

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