All-time weather records — Butler, PA

Record high
102.0°F
July 17, 1988
Record low
-20.0°F
January 13, 1977
Wettest day
4.72 in
September 18, 2004

Climate change signal in Butler

7.7%

of Butler's all-time daily heat records were set in the last decade (28 of 366 records since 2015).

5.2%

of all-time daily cold records were set in the last decade (19 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 #
1960s
20
32
1970s
87
160
1980s
87
81
1990s
58
40
2000s
58
26
2010s
51
27
2020s
5
·

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 1967, the latest in 2020. Period of observation: 1967-2020.

Records by month

Month Hottest day Coldest day Wettest day
January 69.1°F — Jan 12, 2020 -20.0°F — Jan 13, 1977 2.45 in — Jan 12, 2018
February 75.0°F — Feb 21, 2018 -18.9°F — Feb 8, 1977 2.04 in — Feb 24, 1975
March 84.0°F — Mar 31, 1986 -9.9°F — Mar 1, 2015 1.98 in — Mar 29, 1985
April 90.0°F — Apr 24, 1985 9.0°F — Apr 9, 1982 2.10 in — Apr 11, 2013
May 91.0°F — May 30, 1987 21.9°F — May 1, 1978 3.32 in — May 28, 1985
June 97.0°F — Jun 23, 1988 30.9°F — Jun 8, 1977 2.40 in — Jun 15, 2015
July 102.0°F — Jul 17, 1988 34.0°F — Jul 1, 1989 2.94 in — Jul 9, 1985
August 100.0°F — Aug 18, 1988 32.0°F — Aug 29, 1982 3.95 in — Aug 21, 2007
September 93.9°F — Sep 4, 1973 28.0°F — Sep 24, 1974 4.72 in — Sep 18, 2004
October 88.0°F — Oct 2, 2019 17.1°F — Oct 24, 1969 2.73 in — Oct 4, 1986
November 79.0°F — Nov 1, 1971 0.0°F — Nov 30, 1976 2.18 in — Nov 6, 2017
December 73.9°F — Dec 4, 1982 -14.1°F — Dec 24, 1989 3.15 in — Dec 1, 2010

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