Washington/Warren Arpt climate by month
Averages and records for each calendar month at Washington/Warren Arpt, United States, from 1893 to 2026. The warmest month is July, averaging 32.2°C; the coolest is January at 12.2°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 12.2°C | 0.9°C | 27.2°C11 January 1901 | −18.3°C7 January 2018 | 30 / 30 |
| February | 13.5°C | 1.8°C | 28.9°C23 February 2023 | −15.6°C1 February 1900 | 31 / 31 |
| March | 18.4°C | 6.0°C | 35.0°C23 March 1907 | −7.2°C6 March 1901 | 31 / 31 |
| April | 22.5°C | 10.2°C | 32.8°C30 April 1903 | −1.7°C2 April 1907 | 31 / 31 |
| May | 27.0°C | 15.5°C | 36.1°C20 May 1903 | 2.2°C11 May 1906 | 30 / 30 |
| June | 30.4°C | 19.7°C | 38.3°C24 June 1901 | 8.3°C10 June 1905 | 30 / 31 |
| July | 32.2°C | 22.3°C | 40.6°C7 July 1900 | 13.9°C10 July 2018 | 30 / 31 |
| August | 31.3°C | 21.7°C | 41.7°C15 August 1900 | 10.6°C27 August 1905 | 29 / 30 |
| September | 28.4°C | 18.4°C | 37.2°C20 September 1893 | 5.6°C30 September 1893 | 27 / 28 |
| October | 23.4°C | 12.2°C | 33.9°C10 October 2007 | −2.2°C12 October 1906 | 28 / 29 |
| November | 17.7°C | 5.7°C | 29.4°C20 November 1906 | −7.8°C27 November 1903 | 29 / 29 |
| December | 13.9°C | 2.6°C | 30.0°C7 December 1906 | −10.6°C21 December 1901 | 30 / 30 |
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 27 to 31 years each.
See what Washington/Warren 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.