Seward Arpt climate by month
Averages and records for each calendar month at Seward Arpt, United States, from 1908 to 2026. The warmest month is July, averaging 16.9°C; the coolest is January at −0.9°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −0.9°C | −6.8°C | 16.1°C27 January 2014 | −28.9°C29 January 1919 | 107 / 111 |
| February | 0.8°C | −5.4°C | 13.3°C28 February 1938 | −27.2°C3 February 1947 | 110 / 113 |
| March | 3.0°C | −4.0°C | 19.4°C28 March 1915 | −21.7°C12 March 1911 | 114 / 114 |
| April | 7.0°C | −0.3°C | 23.3°C28 April 2005 | −18.3°C1 April 1944 | 113 / 113 |
| May | 11.3°C | 3.5°C | 26.7°C28 May 2013 | −10.0°C3 May 1945 | 112 / 113 |
| June | 14.8°C | 7.1°C | 31.1°C17 June 2013 | −1.1°C10 June 1922 | 112 / 113 |
| July | 16.9°C | 9.6°C | 31.1°C29 July 1915 | −1.1°C10 July 1917 | 111 / 112 |
| August | 16.6°C | 9.3°C | 35.0°C12 August 1966 | −1.1°C3 August 1921 | 111 / 113 |
| September | 13.1°C | 6.1°C | 28.9°C9 September 1910 | −3.3°C25 September 1946 | 110 / 115 |
| October | 7.5°C | 1.4°C | 18.3°C11 October 1918 | −13.3°C31 October 1975 | 111 / 113 |
| November | 2.2°C | −3.3°C | 14.4°C18 November 1914 | −20.0°C27 November 1942 | 112 / 113 |
| December | −0.2°C | −6.0°C | 11.7°C4 December 1914 | −24.4°C9 December 1918 | 112 / 113 |
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 107 to 114 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.