All-time weather records — Cortland, OH

Record high
99.0°F
July 25, 1965
Record low
-20.0°F
February 21, 2015
Wettest day
4.50 in
September 9, 2004

Climate change signal in Cortland

49.5%

of Cortland's all-time daily heat records were set in the last decade (181 of 366 records since 2015).

30.3%

of all-time daily cold records were set in the last decade (111 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 #
1940s
3
4
1950s
106
163
1960s
17
36
1970s
8
6
1980s
·
·
1990s
·
·
2000s
·
·
2010s
128
115
2020s
104
42

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 1949, the latest in 2026. Period of observation: 1944-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 72.0°F — Jan 26, 1950 -11.9°F — Jan 7, 2018 2.00 in — Jan 8, 1998
February 75.9°F — Feb 25, 2017 -20.0°F — Feb 21, 2015 2.05 in — Feb 10, 1959
March 87.1°F — Mar 24, 2012 -13.0°F — Mar 1, 2015 2.50 in — Mar 5, 1964
April 86.0°F — Apr 15, 2023 14.0°F — Apr 1, 1954 2.41 in — Apr 24, 1957
May 91.0°F — May 30, 2018 21.0°F — May 10, 1966 4.00 in — May 10, 2009
June 97.0°F — Jun 27, 1952 35.1°F — Jun 2, 1953 2.43 in — Jun 6, 2002
July 99.0°F — Jul 25, 1965 39.9°F — Jul 9, 1954 3.90 in — Jul 22, 2003
August 97.0°F — Aug 30, 1953 36.0°F — Aug 24, 1952 4.40 in — Aug 14, 1994
September 98.1°F — Sep 3, 1953 6.1°F — Sep 24, 2016 4.50 in — Sep 9, 2004
October 89.1°F — Oct 3, 2019 15.1°F — Oct 29, 1965 3.38 in — Oct 1, 1959
November 80.1°F — Nov 6, 2022 3.9°F — Nov 21, 1951 3.20 in — Nov 5, 1985
December 66.9°F — Dec 13, 2015 -15.0°F — Dec 27, 1950 3.00 in — Dec 20, 2004

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