All-time weather records — Defiance, OH

Record high
111.0°F
July 25, 1934
Record low
-26.0°F
January 13, 1912
Wettest day
10.00 in
March 11, 1982

Climate change signal in Defiance

5.2%

of Defiance's all-time daily heat records were set in the last decade (19 of 366 records since 2015).

3.3%

of all-time daily cold records were set in the last decade (12 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 #
1890s
57
43
1900s
39
71
1910s
11
17
1920s
1
·
1930s
72
15
1940s
33
31
1950s
26
27
1960s
17
55
1970s
11
47
1980s
27
32
1990s
19
7
2000s
17
4
2010s
27
14
2020s
9
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 1894, the latest in 2026. Period of observation: 1893-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 70.0°F — Jan 30, 1896 -26.0°F — Jan 13, 1912 1.93 in — Jan 19, 1996
February 73.0°F — Feb 26, 2000 -22.0°F — Feb 10, 1912 2.19 in — Feb 27, 1997
March 89.1°F — Mar 22, 1907 -7.1°F — Mar 8, 1943 10.00 in — Mar 11, 1982
April 91.0°F — Apr 17, 1896 3.9°F — Apr 7, 1982 4.10 in — Apr 23, 1977
May 99.0°F — May 28, 1911 24.1°F — May 10, 1966 3.48 in — May 19, 2020
June 107.1°F — Jun 29, 2012 35.1°F — Jun 2, 1910 3.19 in — Jun 28, 1894
July 111.0°F — Jul 25, 1934 35.1°F — Jul 28, 1903 4.32 in — Jul 5, 1901
August 104.0°F — Aug 10, 1934 30.9°F — Aug 29, 1948 4.00 in — Aug 15, 1909
September 100.0°F — Sep 9, 1933 26.1°F — Sep 21, 1897 4.63 in — Sep 18, 1907
October 91.9°F — Oct 5, 1951 14.0°F — Oct 30, 1895 3.89 in — Oct 18, 1988
November 82.0°F — Nov 1, 1950 0.0°F — Nov 24, 1950 3.23 in — Nov 9, 1966
December 86.0°F — Dec 22, 1911 -18.9°F — Dec 22, 1989 2.74 in — Dec 8, 1966

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