All-time weather records — Hamilton, NY

Record high
100.0°F
July 9, 1936
Record low
-36.9°F
December 30, 1917
Wettest day
4.11 in
September 17, 1999

Climate change signal in Hamilton

12.3%

of Hamilton's all-time daily heat records were set in the last decade (45 of 366 records since 2015).

3.6%

of all-time daily cold records were set in the last decade (13 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 #
1910s
35
41
1920s
59
72
1930s
63
51
1940s
31
50
1950s
31
33
1960s
22
48
1970s
10
16
1980s
21
22
1990s
20
9
2000s
15
11
2010s
33
9
2020s
26
4

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 1911, the latest in 2025. Period of observation: 1911-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 69.1°F — Jan 12, 1932 -35.0°F — Jan 15, 1957 2.40 in — Jan 11, 1922
February 68.0°F — Feb 22, 2018 -34.1°F — Feb 9, 1934 2.65 in — Feb 4, 1961
March 82.0°F — Mar 30, 1986 -20.9°F — Mar 19, 1993 3.10 in — Mar 29, 1993
April 88.0°F — Apr 29, 1932 -0.9°F — Apr 1, 1923 2.15 in — Apr 3, 2005
May 90.0°F — May 19, 1962 19.9°F — May 6, 1963 3.39 in — May 11, 2000
June 96.1°F — Jun 28, 1933 28.9°F — Jun 1, 1945 3.86 in — Jun 22, 1972
July 100.0°F — Jul 9, 1936 33.1°F — Jul 10, 1942 4.00 in — Jul 10, 1952
August 97.0°F — Aug 22, 1916 28.0°F — Aug 17, 1966 3.63 in — Aug 22, 2010
September 95.0°F — Sep 13, 1931 21.9°F — Sep 28, 1947 4.11 in — Sep 17, 1999
October 86.0°F — Oct 2, 1927 3.9°F — Oct 30, 1928 3.49 in — Oct 6, 1932
November 78.1°F — Nov 2, 1950 -11.9°F — Nov 16, 1933 2.89 in — Nov 9, 1996
December 64.9°F — Dec 5, 1941 -36.9°F — Dec 30, 1917 2.50 in — Dec 14, 1917

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