Dover AFB climate by month
Averages and records for each calendar month at Dover AFB, United States, from 1946 to 2026. The warmest month is July, averaging 29.3°C; the coolest is January at 4.8°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 4.8°C | −3.5°C | 22.2°C24 January 1967 | −16.7°C18 January 1957 | 22 / 22 |
| February | 6.3°C | −2.5°C | 22.8°C16 February 1954 | −17.8°C11 February 1962 | 22 / 22 |
| March | 10.6°C | 1.3°C | 29.2°C11 March 2026 | −12.8°C11 March 1960 | 22 / 22 |
| April | 17.1°C | 6.8°C | 32.1°C16 April 2026 | −2.2°C2 April 1954 | 22 / 22 |
| May | 22.0°C | 11.9°C | 36.1°C27 May 1965 | 1.1°C10 May 1966 | 22 / 22 |
| June | 27.2°C | 17.2°C | 38.0°C24 June 2025 | 6.1°C1 June 1967 | 22 / 22 |
| July | 29.3°C | 20.0°C | 38.3°C21 July 1957 | 11.7°C2 July 1952 | 23 / 24 |
| August | 28.2°C | 19.1°C | 37.8°C31 August 1953 | 10.0°C15 August 1964 | 23 / 24 |
| September | 24.9°C | 15.3°C | 35.6°C22 September 1970 | 3.9°C21 September 1956 | 22 / 23 |
| October | 19.2°C | 9.1°C | 32.8°C5 October 1959 | −4.4°C21 October 1952 | 22 / 22 |
| November | 12.9°C | 3.3°C | 28.3°C1 November 1950 | −10.0°C29 November 1955 | 22 / 22 |
| December | 6.7°C | −1.8°C | 23.3°C10 December 1966 | −13.3°C31 December 1962 | 21 / 21 |
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.
See what Dover AFB is doing right now
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.