Birmingham Intl climate by month
Averages and records for each calendar month at Birmingham Intl, United States, from 1930 to 2026. The warmest month is July, averaging 32.5°C; the coolest is January at 12.2°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 12.2°C | 1.3°C | 27.2°C10 January 1949 | −21.1°C21 January 1985 | 97 / 97 |
| February | 14.7°C | 2.9°C | 28.3°C13 February 1962 | −16.1°C17 February 1958 | 97 / 97 |
| March | 19.1°C | 6.5°C | 31.7°C19 March 1982 | −16.7°C14 March 1993 | 97 / 97 |
| April | 23.8°C | 10.6°C | 33.3°C21 April 1987 | −3.3°C11 April 1973 | 97 / 97 |
| May | 27.7°C | 15.4°C | 37.2°C28 May 1962 | 2.2°C4 May 1971 | 97 / 97 |
| June | 31.3°C | 19.6°C | 41.1°C29 June 1931 | 5.6°C1 June 1966 | 97 / 97 |
| July | 32.5°C | 21.5°C | 41.7°C29 July 1930 | 10.6°C15 July 1967 | 97 / 97 |
| August | 32.3°C | 21.1°C | 40.6°C15 August 2007 | 10.6°C31 August 1946 | 97 / 97 |
| September | 29.6°C | 17.9°C | 38.9°C19 September 1931 | 2.8°C30 September 1967 | 96 / 97 |
| October | 24.3°C | 11.4°C | 38.3°C3 October 2019 | −2.8°C29 October 1952 | 96 / 96 |
| November | 18.1°C | 5.7°C | 31.1°C1 November 2016 | −15.0°C25 November 1950 | 96 / 96 |
| December | 13.6°C | 2.6°C | 26.7°C7 December 1951 | −17.2°C13 December 1962 | 96 / 96 |
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 96 to 97 years each.
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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.