Detroit/Willow Run Arpt climate by month
Averages and records for each calendar month at Detroit/Willow Run Arpt, United States, from 1948 to 2026. The warmest month is July, averaging 29.3°C; the coolest is January at 0.2°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 0.2°C | −7.8°C | 20.6°C25 January 1950 | −27.1°C16 January 2009 | 48 / 48 |
| February | 1.8°C | −7.2°C | 22.8°C27 February 2024 | −27.7°C20 February 2015 | 48 / 48 |
| March | 7.7°C | −2.7°C | 31.7°C22 March 2012 | −21.7°C3 March 2003 | 48 / 49 |
| April | 15.3°C | 3.0°C | 30.6°C26 April 1962 | −10.0°C3 April 1954 | 49 / 49 |
| May | 21.7°C | 8.7°C | 36.7°C28 May 2012 | −5.0°C10 May 1966 | 49 / 49 |
| June | 27.2°C | 14.4°C | 40.6°C28 June 2012 | 0.6°C1 June 1966 | 49 / 49 |
| July | 29.3°C | 16.7°C | 40.6°C17 July 2012 | 5.6°C1 July 1965 | 49 / 49 |
| August | 28.0°C | 15.8°C | 37.2°C27 August 1948 | 4.4°C29 August 1965 | 49 / 49 |
| September | 24.2°C | 11.6°C | 37.8°C1 September 1953 | −1.1°C29 September 1961 | 47 / 49 |
| October | 17.6°C | 5.8°C | 33.3°C1 October 2019 | −6.7°C29 October 1965 | 47 / 47 |
| November | 9.4°C | 0.1°C | 27.2°C1 November 1950 | −16.7°C24 November 1950 | 46 / 47 |
| December | 2.8°C | −4.7°C | 19.4°C5 December 2001 | −23.9°C23 December 1960 | 47 / 47 |
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 46 to 49 years each.
See what Detroit/Willow Run Arpt 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.