Quillayute State Arpt climate by month
Averages and records for each calendar month at Quillayute State Arpt, United States, from 1966 to 2026. The warmest month is August, averaging 20.8°C; the coolest is December at 8.2°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 8.5°C | 1.7°C | 20.6°C21 January 2005 | −13.9°C23 January 1969 | 60 / 60 |
| February | 9.5°C | 1.7°C | 22.8°C26 February 1992 | −11.7°C2 February 1989 | 60 / 60 |
| March | 10.9°C | 2.3°C | 26.7°C16 March 2024 | −7.2°C1 March 1971 | 60 / 60 |
| April | 12.9°C | 3.4°C | 28.9°C30 April 2014 | −5.0°C1 April 1999 | 60 / 60 |
| May | 15.7°C | 6.1°C | 33.3°C7 May 1987 | −1.7°C12 May 1977 | 60 / 60 |
| June | 17.8°C | 8.5°C | 43.3°C28 June 2021 | 0.6°C1 June 1976 | 59 / 60 |
| July | 20.1°C | 10.3°C | 36.1°C19 July 1988 | 3.3°C10 July 1970 | 60 / 60 |
| August | 20.8°C | 10.4°C | 37.2°C9 August 1981 | 2.2°C18 August 1973 | 61 / 61 |
| September | 19.5°C | 8.4°C | 36.1°C2 September 1988 | −2.2°C27 September 1972 | 60 / 61 |
| October | 15.1°C | 5.5°C | 28.9°C6 October 2023 | −5.0°C31 October 2006 | 60 / 60 |
| November | 10.7°C | 3.2°C | 20.6°C3 November 1976 | −15.0°C23 November 1985 | 60 / 60 |
| December | 8.2°C | 1.7°C | 17.8°C2 December 1969 | −13.9°C8 December 1972 | 60 / 60 |
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 59 to 61 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.