All-time weather records — Dayton, KY

Record high
105.1°F
July 30, 1999
Record low
-22.0°F
January 19, 1994
Wettest day
4.73 in
March 9, 1964

Climate change signal in Dayton

13.1%

of Dayton's all-time daily heat records were set in the last decade (48 of 366 records since 2015).

10.7%

of all-time daily cold records were set in the last decade (39 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
9
5
1950s
38
51
1960s
57
86
1970s
42
56
1980s
50
48
1990s
42
26
2000s
46
27
2010s
48
47
2020s
34
20

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: 1948-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 73.9°F — Jan 25, 1950 -22.0°F — Jan 19, 1994 3.12 in — Jan 3, 2000
February 80.1°F — Feb 20, 2018 -15.9°F — Feb 20, 2015 2.63 in — Feb 18, 2000
March 86.0°F — Mar 21, 2012 -6.0°F — Mar 3, 1980 4.73 in — Mar 9, 1964
April 90.0°F — Apr 26, 1986 19.0°F — Apr 1, 1964 2.67 in — Apr 21, 2002
May 93.9°F — May 17, 1962 27.0°F — May 10, 1966 3.97 in — May 10, 2003
June 102.9°F — Jun 28, 2012 39.0°F — Jun 1, 1966 3.84 in — Jun 8, 1982
July 105.1°F — Jul 30, 1999 46.9°F — Jul 6, 1972 3.74 in — Jul 20, 1998
August 102.9°F — Aug 17, 1988 43.0°F — Aug 29, 1965 3.94 in — Aug 10, 1960
September 100.0°F — Sep 1, 1951 32.0°F — Sep 30, 1963 3.24 in — Sep 3, 1971
October 95.0°F — Oct 1, 2019 18.0°F — Oct 27, 1962 4.53 in — Oct 20, 1985
November 82.0°F — Nov 1, 1950 -2.9°F — Nov 30, 1958 3.00 in — Nov 18, 2025
December 75.0°F — Dec 3, 1982 -14.1°F — Dec 22, 1989 2.41 in — Dec 2, 1991

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