Andrews AFB climate by month
Averages and records for each calendar month at Andrews AFB, United States, from 1949 to 2026. The warmest month is July, averaging 30.1°C; the coolest is January at 5.9°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 5.9°C | −2.8°C | 25.0°C26 January 1950 | −19.4°C9 January 1970 | 24 / 24 |
| February | 7.1°C | −1.9°C | 23.9°C15 February 1954 | −16.1°C17 February 1958 | 24 / 24 |
| March | 11.7°C | 1.7°C | 29.6°C11 March 2026 | −11.1°C3 March 1950 | 24 / 24 |
| April | 18.5°C | 7.4°C | 33.9°C23 April 1960 | −5.0°C14 April 1950 | 24 / 24 |
| May | 23.3°C | 12.4°C | 36.0°C19 May 2026 | 0.6°C11 May 1966 | 24 / 24 |
| June | 28.0°C | 17.3°C | 37.8°C26 June 1952 | 7.2°C1 June 1967 | 24 / 24 |
| July | 30.1°C | 20.1°C | 39.5°C4 July 2026 | 12.2°C2 July 1952 | 24 / 24 |
| August | 28.9°C | 19.1°C | 37.8°C31 August 1953 | 8.9°C15 August 1964 | 24 / 24 |
| September | 25.4°C | 15.2°C | 37.8°C2 September 1953 | 3.3°C28 September 1957 | 23 / 24 |
| October | 19.8°C | 9.2°C | 33.3°C5 October 1951 | −2.2°C21 October 1952 | 23 / 23 |
| November | 13.2°C | 3.5°C | 28.9°C1 November 1950 | −10.6°C29 November 1955 | 22 / 22 |
| December | 6.9°C | −1.4°C | 23.9°C7 December 1956 | −13.9°C2 December 1967 | 23 / 23 |
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 22 to 24 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.