Houston/Ellington Arpt weather by month
Averages and records for each calendar month at Houston/Ellington Arpt, United States, from 1950 to 2026. The warmest month is August, averaging 33.3°C; the coolest is January at 17.0°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 17.0°C | 6.6°C | 29.0°C2 January 2026 | −8.9°C10 January 1962 | 22 / 23 |
| February | 18.6°C | 8.3°C | 30.6°C27 February 1954 | −9.4°C2 February 1951 | 23 / 23 |
| March | 21.7°C | 11.4°C | 31.1°C7 March 1951 | −3.3°C1 March 1968 | 23 / 23 |
| April | 25.5°C | 16.4°C | 33.9°C30 April 1953 | 3.9°C1 April 1962 | 23 / 23 |
| May | 28.9°C | 19.6°C | 35.0°C24 May 1955 | 7.8°C4 May 1954 | 23 / 23 |
| June | 31.9°C | 22.6°C | 37.2°C21 June 1958 | 13.9°C2 June 1964 | 23 / 23 |
| July | 33.2°C | 23.9°C | 40.0°C26 July 1954 | 16.1°C15 July 1967 | 23 / 23 |
| August | 33.3°C | 23.7°C | 39.4°C13 August 1962 | 16.7°C12 August 1967 | 23 / 23 |
| September | 31.0°C | 21.4°C | 38.3°C7 September 1963 | 7.2°C29 September 1967 | 21 / 23 |
| October | 27.2°C | 15.9°C | 35.6°C2 October 1952 | 2.8°C27 October 1957 | 22 / 22 |
| November | 21.8°C | 10.8°C | 31.7°C2 November 1950 | −4.4°C25 November 1950 | 22 / 22 |
| December | 18.4°C | 7.8°C | 28.9°C14 December 1950 | −8.3°C7 December 1950 | 22 / 22 |
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 21 to 23 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.