Yakima/McAllister Fld climate by month
Averages and records for each calendar month at Yakima/McAllister Fld, United States, from 1946 to 2026. The warmest month is July, averaging 31.5°C; the coolest is January at 3.3°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 3.3°C | −5.7°C | 20.0°C30 January 1971 | −29.4°C31 January 1950 | 80 / 80 |
| February | 7.9°C | −3.5°C | 21.1°C10 February 2022 | −31.7°C1 February 1950 | 80 / 80 |
| March | 13.2°C | −1.1°C | 26.7°C25 March 1960 | −18.3°C4 March 1960 | 80 / 80 |
| April | 17.9°C | 1.6°C | 33.3°C24 April 1977 | −7.8°C19 April 2008 | 80 / 80 |
| May | 22.9°C | 6.0°C | 38.9°C30 May 1986 | −3.9°C1 May 1954 | 80 / 80 |
| June | 26.9°C | 9.7°C | 45.0°C29 June 2021 | −1.1°C1 June 1976 | 80 / 80 |
| July | 31.5°C | 12.3°C | 42.8°C23 July 2006 | 1.1°C7 July 1971 | 80 / 80 |
| August | 30.6°C | 11.4°C | 43.3°C10 August 1971 | 1.7°C22 August 1960 | 79 / 80 |
| September | 25.7°C | 7.0°C | 37.8°C1 September 1949 | −4.4°C29 September 1985 | 80 / 81 |
| October | 18.0°C | 1.7°C | 32.8°C6 October 2014 | −15.6°C31 October 2002 | 80 / 80 |
| November | 9.1°C | −2.3°C | 22.8°C10 November 1989 | −25.0°C23 November 1985 | 80 / 80 |
| December | 3.5°C | −5.0°C | 22.2°C1 December 2021 | −27.2°C17 December 1964 | 80 / 80 |
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 79 to 80 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.