Galveston weather by month
Measured at Galveston/Scholes Intl
Averages and records for each calendar month at Galveston/Scholes Intl, United States, from 1946 to 2026. The warmest month is August, averaging 32.5°C; the coolest is January at 16.5°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 16.5°C | 9.3°C | 30.6°C17 January 1952 | −8.3°C11 January 1962 | 47 / 50 |
| February | 18.0°C | 11.1°C | 28.3°C17 February 2022 | −7.8°C1 February 1951 | 46 / 49 |
| March | 21.1°C | 14.5°C | 31.7°C19 March 2018 | 0.0°C11 March 1948 | 47 / 50 |
| April | 24.5°C | 18.4°C | 35.0°C27 April 2011 | 5.0°C7 April 2007 | 47 / 50 |
| May | 28.1°C | 22.4°C | 33.9°C13 May 2011 | 10.0°C3 May 2013 | 47 / 50 |
| June | 31.2°C | 25.6°C | 37.8°C25 June 2012 | 15.6°C10 June 1955 | 47 / 51 |
| July | 32.1°C | 26.5°C | 37.8°C22 July 2026 | 19.4°C26 July 1963 | 47 / 50 |
| August | 32.5°C | 26.5°C | 38.3°C27 August 2023 | 21.1°C30 August 1946 | 46 / 51 |
| September | 30.6°C | 24.5°C | 40.0°C5 September 2000 | 14.4°C26 September 2000 | 45 / 51 |
| October | 27.0°C | 20.4°C | 33.3°C2 October 1952 | 5.9°C30 October 1993 | 45 / 49 |
| November | 21.6°C | 14.5°C | 30.0°C4 November 2024 | −1.7°C18 November 1959 | 45 / 49 |
| December | 18.1°C | 11.0°C | 27.8°C28 December 2021 | −6.0°C23 December 2022 | 46 / 49 |
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 45 to 47 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.