Houston weather by month
Measured at Houston/Hobby Arpt
Averages and records for each calendar month at Houston/Hobby Arpt, United States, from 1930 to 2026. The warmest month is August, averaging 33.9°C; the coolest is January at 17.2°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 17.2°C | 6.9°C | 29.4°C23 January 1972 | −15.0°C23 January 1940 | 94 / 94 |
| February | 19.0°C | 8.6°C | 31.7°C28 February 1940 | −10.0°C2 February 1951 | 94 / 94 |
| March | 22.6°C | 12.0°C | 35.6°C30 March 1946 | −5.6°C3 March 1943 | 95 / 95 |
| April | 26.1°C | 16.0°C | 34.4°C28 April 1948 | 0.0°C13 April 1940 | 89 / 89 |
| May | 29.6°C | 19.8°C | 37.8°C31 May 1998 | 6.7°C4 May 1978 | 91 / 91 |
| June | 32.6°C | 22.9°C | 40.6°C29 June 2013 | 13.3°C1 June 1984 | 90 / 90 |
| July | 33.7°C | 24.0°C | 40.6°C8 July 1939 | 17.8°C15 July 1967 | 90 / 90 |
| August | 33.9°C | 23.9°C | 42.8°C27 August 2023 | 15.6°C21 August 1940 | 92 / 92 |
| September | 31.6°C | 21.9°C | 42.2°C4 September 2000 | 10.0°C27 September 1940 | 91 / 92 |
| October | 27.8°C | 16.8°C | 36.7°C14 October 2024 | 0.6°C31 October 1993 | 90 / 90 |
| November | 22.3°C | 11.4°C | 32.2°C1 November 1934 | −4.4°C25 November 1938 | 95 / 95 |
| December | 18.6°C | 8.2°C | 30.6°C9 December 2021 | −12.8°C23 December 1989 | 95 / 95 |
Years shows the number behind the average high, then the number holding a record for that month. They differ because a year contributes an average only when the month has at least 25 days of readings, while a single reading is enough to set a record. The average low is withheld on the same 25-day rule and is counted separately again; it is shown as a dash where the archive cannot support it. Across the twelve months here the averages rest on 89 to 95 years each.
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Climate at nearby stations
The closest stations with twelve months of archive of their own, nearest first.
Every figure on this page is computed from NOAA GHCN-Daily observations stored per station, per year, per month. Nothing is modelled, interpolated or estimated, and a month the archive never covered is left out rather than filled in. A station appears here only once all twelve months carry an average from at least 10 years. See how this is built.