Sierra Vista weather by month
Measured at Fort Huachuca/Libby AAF
Averages and records for each calendar month at Fort Huachuca/Libby AAF, United States, from 1900 to 2026. The warmest month is June, averaging 33.0°C; the coolest is January at 15.0°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 15.0°C | 1.1°C | 27.2°C18 January 1971 | −17.2°C8 January 1913 | 53 / 57 |
| February | 16.8°C | 2.4°C | 29.3°C28 February 2026 | −15.5°C3 February 2011 | 52 / 59 |
| March | 20.0°C | 5.2°C | 34.7°C21 March 2026 | −7.8°C2 March 1971 | 55 / 57 |
| April | 23.6°C | 8.0°C | 34.4°C22 April 2012 | −5.0°C17 April 1976 | 54 / 59 |
| May | 27.8°C | 12.2°C | 40.0°C30 May 1910 | 0.0°C7 May 1907 | 57 / 58 |
| June | 33.0°C | 17.5°C | 40.0°C22 June 1909 | 3.3°C9 June 1907 | 58 / 59 |
| July | 32.0°C | 18.7°C | 40.6°C14 July 1909 | 6.7°C24 July 1914 | 55 / 58 |
| August | 30.9°C | 17.9°C | 39.3°C6 August 2025 | 7.8°C31 August 1907 | 55 / 58 |
| September | 29.3°C | 15.6°C | 38.9°C17 September 1917 | 1.7°C30 September 1905 | 55 / 58 |
| October | 25.3°C | 10.7°C | 35.6°C5 October 1917 | −4.4°C30 October 1971 | 57 / 59 |
| November | 19.7°C | 4.9°C | 31.1°C2 November 1916 | −12.2°C27 November 1911 | 56 / 57 |
| December | 15.4°C | 1.6°C | 27.2°C1 December 1917 | −14.4°C8 December 1978 | 54 / 58 |
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 52 to 58 years each.
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Climate at nearby stations
The closest stations with twelve months of archive of their own, nearest first.
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.