Moses Lake/Grant Cnty climate by month
Averages and records for each calendar month at Moses Lake/Grant Cnty, United States, from 1949 to 2026. The warmest month is July, averaging 32.1°C; the coolest is January at 2.0°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 2.0°C | −4.9°C | 15.6°C31 January 2020 | −30.0°C16 January 1950 | 46 / 46 |
| February | 6.4°C | −2.7°C | 18.3°C8 February 2018 | −22.8°C2 February 1957 | 45 / 46 |
| March | 12.2°C | 0.1°C | 23.9°C25 March 1960 | −17.1°C4 March 2019 | 46 / 47 |
| April | 17.5°C | 3.2°C | 31.7°C30 April 1998 | −6.0°C7 April 2011 | 46 / 47 |
| May | 22.9°C | 7.9°C | 36.1°C23 May 2001 | −3.8°C5 May 2010 | 46 / 46 |
| June | 26.9°C | 11.9°C | 45.6°C29 June 2021 | 2.8°C13 June 1952 | 46 / 46 |
| July | 32.1°C | 14.9°C | 42.8°C30 July 2020 | 5.6°C3 July 1999 | 46 / 47 |
| August | 30.9°C | 14.0°C | 44.4°C4 August 1961 | 5.6°C31 August 2006 | 47 / 47 |
| September | 25.7°C | 9.4°C | 37.8°C2 September 1950 | −2.8°C23 September 2000 | 46 / 47 |
| October | 17.2°C | 3.6°C | 30.0°C5 October 1958 | −15.0°C31 October 2002 | 46 / 46 |
| November | 8.0°C | −1.2°C | 21.1°C4 November 2020 | −28.2°C24 November 2010 | 46 / 46 |
| December | 2.6°C | −4.0°C | 20.0°C28 December 1998 | −25.0°C17 December 1964 | 46 / 46 |
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 45 to 47 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.