Anchorage/Merrill Fld weather by month
Averages and records for each calendar month at Anchorage/Merrill Fld, United States, from 1916 to 2026. The warmest month is July, averaging 19.2°C; the coolest is January at −5.9°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −5.9°C | −14.2°C | 13.3°C7 January 1934 | −37.2°C30 January 1947 | 65 / 65 |
| February | −2.5°C | −11.8°C | 13.9°C24 February 1943 | −38.9°C3 February 1947 | 66 / 66 |
| March | 0.9°C | −9.5°C | 13.3°C10 March 1926 | −28.9°C6 March 1951 | 65 / 65 |
| April | 7.3°C | −2.3°C | 21.7°C29 April 2005 | −29.4°C1 April 1944 | 66 / 66 |
| May | 13.4°C | 3.4°C | 27.8°C28 May 1947 | −17.2°C4 May 1945 | 66 / 66 |
| June | 17.7°C | 8.2°C | 30.6°C18 June 2013 | −1.7°C1 June 1920 | 66 / 66 |
| July | 19.2°C | 10.6°C | 32.2°C4 July 2019 | 1.1°C1 July 1922 | 67 / 67 |
| August | 18.1°C | 9.5°C | 28.3°C9 August 2003 | −0.6°C26 August 1918 | 66 / 67 |
| September | 13.6°C | 4.9°C | 22.8°C10 September 1921 | −7.2°C23 September 1935 | 65 / 67 |
| October | 6.2°C | −1.2°C | 19.4°C9 October 2006 | −21.1°C26 October 1935 | 64 / 66 |
| November | −1.8°C | −9.1°C | 16.7°C4 November 1920 | −28.9°C27 November 1948 | 65 / 66 |
| December | −5.5°C | −13.2°C | 12.2°C4 December 2011 | −37.8°C5 December 1916 | 65 / 65 |
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 64 to 67 years each.
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Climate at nearby stations
The closest stations with twelve months of archive of their own, nearest first.
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.