All-time weather records — Jefferson, TX

Record high
111.9°F
August 3, 2011
Record low
-5.1°F
December 23, 1989
Wettest day
9.10 in
April 26, 1921

Climate change signal in Jefferson

30.6%

of Jefferson's all-time daily heat records were set in the last decade (112 of 366 records since 2015).

10.9%

of all-time daily cold records were set in the last decade (40 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 #
1900s
13
22
1910s
·
·
1920s
·
·
1930s
·
·
1940s
·
·
1950s
·
·
1960s
·
·
1970s
·
·
1980s
42
107
1990s
54
126
2000s
37
32
2010s
156
51
2020s
64
28

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 1903, the latest in 2026. Period of observation: 1903-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 82.0°F — Jan 3, 2009 7.0°F — Jan 17, 2018 4.12 in — Jan 5, 1932
February 91.9°F — Feb 21, 1986 -4.0°F — Feb 16, 2021 4.00 in — Feb 3, 1989
March 90.0°F — Mar 22, 2026 15.1°F — Mar 9, 1996 6.75 in — Mar 9, 2016
April 93.9°F — Apr 20, 2011 5.0°F — Apr 8, 1992 9.10 in — Apr 26, 1921
May 97.0°F — May 29, 2011 37.9°F — May 1, 2014 6.47 in — May 14, 2008
June 107.1°F — Jun 19, 2011 46.0°F — Jun 1, 1984 6.60 in — Jun 27, 1986
July 107.1°F — Jul 14, 2011 55.0°F — Jul 14, 1990 6.20 in — Jul 12, 1994
August 111.9°F — Aug 3, 2011 52.0°F — Aug 9, 1990 4.20 in — Aug 18, 1915
September 109.0°F — Sep 14, 2011 37.9°F — Sep 24, 1989 7.84 in — Sep 17, 1950
October 97.0°F — Oct 16, 2015 25.0°F — Oct 31, 1993 8.55 in — Oct 8, 1994
November 89.1°F — Nov 5, 2022 16.0°F — Nov 19, 1903 4.88 in — Nov 10, 1937
December 88.0°F — Dec 28, 1988 -5.1°F — Dec 23, 1989 6.09 in — Dec 26, 1904

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