Montpelier/Knapp Arpt weather by month
Averages and records for each calendar month at Montpelier/Knapp Arpt, United States, from 1948 to 2026. The warmest month is July, averaging 25.7°C; the coolest is January at −3.4°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −3.4°C | −13.5°C | 18.9°C4 January 1950 | −36.7°C4 January 1981 | 78 / 78 |
| February | −1.8°C | −12.7°C | 21.1°C21 February 2018 | −33.9°C13 February 1967 | 78 / 78 |
| March | 3.2°C | −7.1°C | 27.8°C31 March 1998 | −27.8°C19 March 1967 | 78 / 78 |
| April | 10.9°C | −0.3°C | 32.2°C18 April 1976 | −16.7°C5 April 1954 | 78 / 78 |
| May | 18.4°C | 5.7°C | 32.8°C27 May 2020 | −6.7°C3 May 1966 | 78 / 78 |
| June | 23.1°C | 10.7°C | 35.0°C19 June 1995 | −1.7°C7 June 1958 | 77 / 79 |
| July | 25.7°C | 13.3°C | 36.1°C20 July 1977 | 1.7°C7 July 1965 | 78 / 79 |
| August | 24.5°C | 12.2°C | 36.1°C2 August 1975 | −0.6°C31 August 1965 | 79 / 79 |
| September | 20.1°C | 8.0°C | 33.3°C9 September 2002 | −6.7°C24 September 1963 | 78 / 79 |
| October | 13.5°C | 2.4°C | 29.4°C4 October 2023 | −10.0°C20 October 1972 | 78 / 78 |
| November | 6.1°C | −2.7°C | 24.4°C2 November 1950 | −21.7°C27 November 1949 | 78 / 78 |
| December | −0.7°C | −9.8°C | 19.4°C7 December 1998 | −32.8°C26 December 1980 | 78 / 78 |
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 77 to 79 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.