Imperial Muni climate by month
Averages and records for each calendar month at Imperial Muni, United States, from 1951 to 2026. The warmest month is July, averaging 32.8°C; the coolest is January at 4.9°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 4.9°C | −10.0°C | 25.0°C27 January 2015 | −28.9°C11 January 1963 | 47 / 47 |
| February | 6.3°C | −8.6°C | 25.6°C10 February 1962 | −32.7°C15 February 2021 | 47 / 47 |
| March | 11.7°C | −4.3°C | 35.0°C21 March 2026 | −31.7°C3 March 1960 | 46 / 46 |
| April | 17.4°C | 1.0°C | 35.6°C22 April 2022 | −14.9°C7 April 2018 | 46 / 46 |
| May | 22.7°C | 7.3°C | 38.9°C29 May 2003 | −5.6°C2 May 2005 | 46 / 46 |
| June | 29.5°C | 13.5°C | 43.3°C29 June 1963 | 1.7°C3 June 1954 | 46 / 48 |
| July | 32.8°C | 16.4°C | 43.9°C20 July 2005 | 3.3°C8 July 1952 | 48 / 48 |
| August | 31.7°C | 15.3°C | 43.9°C2 August 2008 | 2.8°C28 August 1964 | 48 / 48 |
| September | 27.0°C | 9.5°C | 41.1°C6 September 2013 | −3.3°C27 September 1964 | 47 / 48 |
| October | 19.4°C | 2.2°C | 35.6°C11 October 2015 | −17.7°C27 October 2020 | 47 / 47 |
| November | 11.7°C | −4.5°C | 29.4°C3 November 2020 | −25.6°C28 November 1952 | 47 / 47 |
| December | 6.0°C | −8.9°C | 25.6°C22 December 2025 | −30.6°C30 December 1968 | 47 / 47 |
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 46 to 48 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.