Watsonville Muni climate by month
Averages and records for each calendar month at Watsonville Muni, United States, from 1998 to 2026. The warmest month is September, averaging 24.1°C; the coolest is December at 16.0°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 16.5°C | 4.8°C | 28.9°C17 January 2014 | −5.5°C14 January 2007 | 27 / 28 |
| February | 16.9°C | 5.3°C | 29.4°C12 February 2022 | −2.1°C24 February 2018 | 27 / 28 |
| March | 17.8°C | 6.4°C | 33.9°C19 March 2026 | −0.6°C8 March 2002 | 28 / 28 |
| April | 18.8°C | 7.3°C | 36.7°C21 April 2009 | 0.6°C20 April 2008 | 28 / 28 |
| May | 20.5°C | 9.0°C | 36.1°C16 May 2008 | 2.2°C10 May 2022 | 27 / 28 |
| June | 22.1°C | 10.7°C | 40.6°C20 June 2008 | 5.6°C8 June 1999 | 27 / 28 |
| July | 22.3°C | 12.0°C | 36.1°C22 July 2006 | 7.8°C5 July 2003 | 28 / 29 |
| August | 22.9°C | 12.4°C | 40.0°C28 August 2009 | 7.8°C5 August 2018 | 27 / 29 |
| September | 24.1°C | 11.7°C | 43.3°C2 September 2017 | 6.1°C8 September 2002 | 28 / 29 |
| October | 23.0°C | 9.5°C | 38.9°C6 October 2024 | 1.1°C12 October 2008 | 28 / 28 |
| November | 19.3°C | 6.5°C | 33.9°C5 November 2012 | −1.7°C29 November 2004 | 28 / 28 |
| December | 16.0°C | 4.7°C | 27.8°C1 December 2021 | −6.1°C23 December 1998 | 28 / 28 |
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 27 to 28 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.