All-time weather records — Mont Belvieu, TX

Record high
109.0°F
July 14, 1982
Record low
7.0°F
December 24, 1989
Wettest day
16.57 in
August 27, 2017

Climate change signal in Mont Belvieu

17.8%

of Mont Belvieu's all-time daily heat records were set in the last decade (65 of 366 records since 2015).

16.4%

of all-time daily cold records were set in the last decade (60 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
23
19
1950s
72
47
1960s
46
72
1970s
6
15
1980s
38
73
1990s
49
40
2000s
49
27
2010s
31
33
2020s
52
40

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 1946, the latest in 2026. Period of observation: 1946-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 84.0°F — Jan 3, 2026 15.1°F — Jan 10, 1962 8.29 in — Jan 22, 1998
February 87.1°F — Feb 10, 1957 14.0°F — Feb 16, 2021 5.43 in — Feb 1, 1952
March 90.0°F — Mar 31, 1989 25.0°F — Mar 1, 1968 6.23 in — Mar 28, 2001
April 93.0°F — Apr 28, 2011 30.0°F — Apr 2, 2019 6.33 in — Apr 26, 1997
May 99.0°F — May 18, 1948 43.0°F — May 4, 2013 6.37 in — May 26, 2015
June 102.0°F — Jun 30, 2013 46.0°F — Jun 21, 1994 9.50 in — Jun 5, 1986
July 109.0°F — Jul 14, 1982 54.0°F — Jul 7, 2021 5.98 in — Jul 26, 2006
August 107.1°F — Aug 28, 2023 55.0°F — Aug 8, 1982 16.57 in — Aug 27, 2017
September 109.0°F — Sep 5, 2000 41.0°F — Sep 29, 1967 7.40 in — Sep 10, 1971
October 96.1°F — Oct 1, 1982 30.0°F — Oct 31, 1993 15.74 in — Oct 18, 1994
November 89.1°F — Nov 4, 1963 25.0°F — Nov 14, 2018 11.10 in — Nov 5, 1946
December 84.9°F — Dec 20, 1951 7.0°F — Dec 24, 1989 6.20 in — Dec 10, 1964

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