All-time weather records — Waterville, ME

Record high
100.9°F
August 1, 1975
Record low
-32.1°F
January 4, 1981
Wettest day
8.55 in
November 21, 1989

Climate change signal in Waterville

15%

of Waterville's all-time daily heat records were set in the last decade (55 of 366 records since 2015).

5.2%

of all-time daily cold records were set in the last decade (19 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 #
1950s
6
6
1960s
59
71
1970s
68
70
1980s
51
108
1990s
63
58
2000s
38
26
2010s
42
24
2020s
39
3

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 1958, the latest in 2026. Period of observation: 1958-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 80.1°F — Jan 15, 1965 -32.1°F — Jan 4, 1981 3.05 in — Jan 13, 2018
February 63.0°F — Feb 24, 2022 -31.0°F — Feb 2, 1962 2.12 in — Feb 22, 1996
March 84.0°F — Mar 23, 2012 -17.0°F — Mar 1, 1982 3.23 in — Mar 23, 1972
April 91.9°F — Apr 28, 1990 1.9°F — Apr 13, 1992 3.30 in — Apr 25, 1983
May 98.1°F — May 22, 1977 9.0°F — May 12, 1991 2.91 in — May 1, 2023
June 98.1°F — Jun 25, 2025 19.0°F — Jun 13, 1990 2.74 in — Jun 1, 1972
July 96.1°F — Jul 1, 1971 39.0°F — Jul 1, 1991 3.20 in — Jul 23, 1990
August 100.9°F — Aug 1, 1975 33.1°F — Aug 26, 1989 3.42 in — Aug 10, 2013
September 96.1°F — Sep 10, 2002 23.0°F — Sep 29, 1980 5.68 in — Sep 17, 1999
October 84.9°F — Oct 7, 2025 10.0°F — Oct 20, 1990 4.11 in — Oct 1, 2015
November 75.0°F — Nov 1, 2024 -0.9°F — Nov 24, 1989 8.55 in — Nov 21, 1989
December 66.9°F — Dec 4, 1982 -27.0°F — Dec 26, 1980 3.92 in — Dec 27, 1969

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