Haines Arpt climate by month
Averages and records for each calendar month at Haines Arpt, United States, from 1911 to 2026. The warmest month is July, averaging 18.4°C; the coolest is January at −1.1°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −1.1°C | −7.1°C | 13.9°C7 January 1934 | −26.1°C21 January 1934 | 57 / 58 |
| February | 0.2°C | −6.2°C | 11.7°C28 February 1943 | −26.7°C2 February 1947 | 56 / 58 |
| March | 3.1°C | −3.4°C | 17.2°C28 March 1934 | −21.1°C18 March 1930 | 57 / 58 |
| April | 8.6°C | 0.6°C | 22.8°C26 April 2003 | −14.4°C4 April 1927 | 55 / 57 |
| May | 14.2°C | 5.1°C | 28.9°C17 May 1915 | −3.3°C1 May 1935 | 59 / 59 |
| June | 17.7°C | 8.8°C | 32.2°C24 June 1915 | −1.1°C2 June 1939 | 60 / 60 |
| July | 18.4°C | 10.6°C | 33.3°C12 July 1915 | −0.6°C4 July 1916 | 61 / 61 |
| August | 17.6°C | 9.9°C | 31.1°C5 August 2017 | 0.0°C17 August 1935 | 60 / 62 |
| September | 13.8°C | 7.0°C | 26.1°C8 September 2019 | −4.4°C21 September 1926 | 58 / 62 |
| October | 8.2°C | 2.8°C | 18.3°C1 October 1936 | −13.3°C27 October 1935 | 57 / 59 |
| November | 2.2°C | −3.1°C | 18.3°C24 November 1911 | −23.9°C16 November 1945 | 57 / 58 |
| December | −0.7°C | −6.4°C | 16.1°C3 December 1911 | −25.6°C19 December 1933 | 57 / 58 |
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 55 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.