Chicopee/Westover AFB weather by month
Averages and records for each calendar month at Chicopee/Westover AFB, United States, from 1942 to 2026. The warmest month is July, averaging 28.4°C; the coolest is January at 0.7°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 0.7°C | −9.2°C | 18.3°C26 January 1950 | −30.0°C22 January 1961 | 30 / 30 |
| February | 1.9°C | −8.3°C | 18.3°C26 February 1957 | −28.9°C8 February 1967 | 30 / 31 |
| March | 7.4°C | −2.8°C | 30.0°C29 March 1945 | −25.0°C6 March 1948 | 31 / 31 |
| April | 14.7°C | 2.4°C | 32.2°C27 April 1962 | −13.3°C1 April 1964 | 31 / 31 |
| May | 21.0°C | 7.7°C | 38.3°C23 May 1964 | −3.9°C3 May 1966 | 31 / 31 |
| June | 26.0°C | 13.1°C | 38.9°C26 June 1952 | 0.0°C3 June 1964 | 31 / 31 |
| July | 28.4°C | 16.0°C | 38.3°C3 July 1966 | 5.6°C7 July 1965 | 31 / 31 |
| August | 27.2°C | 14.6°C | 37.8°C5 August 1955 | −1.1°C31 August 1965 | 31 / 31 |
| September | 23.0°C | 10.3°C | 38.3°C2 September 1953 | −3.9°C24 September 1963 | 30 / 31 |
| October | 17.6°C | 4.6°C | 31.7°C12 October 1954 | −8.3°C25 October 1947 | 30 / 30 |
| November | 9.8°C | −0.2°C | 27.2°C2 November 1950 | −13.3°C30 November 1947 | 29 / 29 |
| December | 2.4°C | −7.0°C | 17.8°C4 December 1950 | −26.7°C31 December 1963 | 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 28 to 31 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.