All-time weather records — Hennessey, OK

Record high
116.1°F
August 12, 1936
Record low
-20.0°F
February 11, 2011
Wettest day
9.78 in
May 15, 1957

Climate change signal in Hennessey

0%

of Hennessey's all-time daily heat records were set in the last decade (0 of 366 records since 2015).

0%

of all-time daily cold records were set in the last decade (0 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
31
15
1910s
15
28
1920s
48
28
1930s
59
41
1940s
37
40
1950s
68
40
1960s
27
48
1970s
22
24
1980s
19
32
1990s
12
32
2000s
14
32
2010s
14
6

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 1895, the latest in 2011. Period of observation: 1895-2012.

Records by month

Month Hottest day Coldest day Wettest day
January 81.0°F — Jan 20, 1986 -15.0°F — Jan 18, 1930 2.09 in — Jan 10, 1949
February 88.0°F — Feb 22, 1996 -20.0°F — Feb 11, 2011 2.95 in — Feb 9, 1898
March 95.0°F — Mar 31, 1940 -0.9°F — Mar 3, 1960 5.17 in — Mar 5, 2004
April 102.0°F — Apr 12, 1972 16.0°F — Apr 3, 1936 2.98 in — Apr 19, 1942
May 104.0°F — May 25, 1896 30.9°F — May 3, 1954 9.78 in — May 15, 1957
June 111.9°F — Jun 15, 1953 41.0°F — Jun 7, 1984 4.55 in — Jun 21, 1948
July 114.1°F — Jul 10, 2011 51.1°F — Jul 4, 1968 3.96 in — Jul 7, 1982
August 116.1°F — Aug 12, 1936 45.0°F — Aug 31, 1915 5.00 in — Aug 17, 1932
September 109.9°F — Sep 3, 1947 32.0°F — Sep 30, 1984 6.41 in — Sep 13, 1961
October 99.0°F — Oct 4, 1897 14.0°F — Oct 31, 1993 4.95 in — Oct 3, 1986
November 89.1°F — Nov 6, 1945 -4.0°F — Nov 7, 2003 4.12 in — Nov 20, 1994
December 86.0°F — Dec 6, 1895 -13.0°F — Dec 23, 1989 3.00 in — Dec 18, 1898

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