All-time weather records — Ottawa Hills, OH

Record high
104.0°F
June 25, 1988
Record low
-20.0°F
January 21, 1984
Wettest day
4.34 in
July 4, 1969

Climate change signal in Ottawa Hills

20.5%

of Ottawa Hills's all-time daily heat records were set in the last decade (75 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 #
1950s
20
21
1960s
52
105
1970s
35
117
1980s
50
65
1990s
65
21
2000s
37
8
2010s
63
29
2020s
44
·

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 1955, the latest in 2026. Period of observation: 1955-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 66.0°F — Jan 7, 2008 -20.0°F — Jan 21, 1984 1.68 in — Jan 13, 2013
February 73.0°F — Feb 27, 2024 -18.8°F — Feb 20, 2015 2.59 in — Feb 22, 1990
March 84.9°F — Mar 21, 2012 -6.0°F — Mar 9, 1984 2.60 in — Mar 28, 1985
April 88.0°F — Apr 16, 2002 8.1°F — Apr 7, 1982 2.89 in — Apr 22, 1977
May 98.1°F — May 28, 2018 25.0°F — May 4, 2005 1.85 in — May 18, 2000
June 104.0°F — Jun 25, 1988 32.0°F — Jun 11, 1972 3.33 in — Jun 27, 2015
July 104.0°F — Jul 14, 1995 39.9°F — Jul 1, 1988 4.34 in — Jul 4, 1969
August 99.0°F — Aug 27, 1993 34.0°F — Aug 29, 1982 2.45 in — Aug 24, 2023
September 98.1°F — Sep 8, 1978 26.1°F — Sep 23, 1974 3.39 in — Sep 10, 2014
October 91.0°F — Oct 1, 2019 15.1°F — Oct 28, 1976 2.88 in — Oct 17, 1988
November 80.1°F — Nov 4, 2003 1.9°F — Nov 30, 1958 2.77 in — Nov 29, 2011
December 70.0°F — Dec 5, 2001 -18.9°F — Dec 22, 1989 3.53 in — Dec 21, 1967

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