McGrath Arpt climate by month
Averages and records for each calendar month at McGrath Arpt, United States, from 1941 to 2026. The warmest month is July, averaging 20.3°C; the coolest is January at −16.8°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −16.8°C | −27.0°C | 12.2°C30 January 1945 | −59.4°C27 January 1989 | 84 / 85 |
| February | −11.3°C | −23.7°C | 12.8°C24 February 1943 | −53.3°C3 February 1947 | 85 / 85 |
| March | −4.8°C | −19.5°C | 12.8°C20 March 1998 | −46.1°C2 March 1956 | 85 / 85 |
| April | 4.2°C | −8.1°C | 20.0°C29 April 2009 | −40.0°C1 April 1985 | 84 / 85 |
| May | 13.5°C | 1.9°C | 30.0°C29 May 2013 | −18.9°C2 May 1945 | 84 / 85 |
| June | 19.5°C | 7.9°C | 34.4°C17 June 2013 | −2.8°C4 June 2006 | 86 / 86 |
| July | 20.3°C | 9.9°C | 32.2°C24 July 2024 | −0.6°C17 July 2003 | 85 / 86 |
| August | 17.4°C | 7.7°C | 31.7°C21 August 1977 | −3.9°C28 August 1984 | 85 / 86 |
| September | 11.6°C | 2.3°C | 24.4°C3 September 1949 | −16.7°C24 September 1992 | 84 / 86 |
| October | 0.6°C | −6.9°C | 19.4°C10 October 2009 | −33.3°C30 October 1982 | 84 / 85 |
| November | −10.3°C | −18.8°C | 10.0°C12 November 2014 | −47.2°C30 November 1990 | 85 / 85 |
| December | −16.0°C | −25.4°C | 9.4°C29 December 1977 | −55.0°C27 December 1961 | 84 / 84 |
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 84 to 86 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.