Fort Yukon Arpt climate by month
Averages and records for each calendar month at Fort Yukon Arpt, United States, from 1899 to 2026. The warmest month is July, averaging 22.6°C; the coolest is January at −24.3°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −24.3°C | −33.5°C | 4.4°C9 January 1927 | −56.1°C12 January 1902 | 57 / 67 |
| February | −20.3°C | −31.4°C | 5.0°C26 February 1920 | −56.7°C3 February 1910 | 56 / 64 |
| March | −10.1°C | −24.4°C | 10.0°C29 March 1926 | −46.1°C3 March 1951 | 56 / 63 |
| April | 1.4°C | −13.1°C | 18.3°C27 April 1910 | −40.6°C6 April 1927 | 56 / 63 |
| May | 13.2°C | −0.2°C | 29.4°C29 May 1922 | −19.4°C8 May 1922 | 54 / 62 |
| June | 21.4°C | 8.7°C | 37.8°C27 June 1915 | −3.9°C10 June 1918 | 56 / 61 |
| July | 22.6°C | 10.5°C | 36.1°C25 July 1955 | −3.9°C29 July 1929 | 53 / 60 |
| August | 18.9°C | 7.0°C | 31.1°C8 August 1954 | −6.1°C23 August 1986 | 51 / 56 |
| September | 10.6°C | 0.0°C | 26.1°C8 September 1899 | −17.8°C20 September 1911 | 50 / 63 |
| October | −2.6°C | −10.7°C | 16.1°C5 October 1923 | −38.3°C31 October 1953 | 59 / 64 |
| November | −16.8°C | −25.6°C | 10.6°C18 November 1935 | −51.7°C24 November 1935 | 57 / 63 |
| December | −23.4°C | −32.8°C | 2.8°C20 December 1921 | −57.2°C7 December 1935 | 53 / 61 |
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 50 to 59 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.