Sexton Summit climate by month
Averages and records for each calendar month at Sexton Summit, United States, from 1948 to 2026. The warmest month is July, averaging 24.4°C; the coolest is December at 5.3°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 5.4°C | 0.0°C | 18.9°C16 January 1985 | −18.9°C21 January 1962 | 75 / 75 |
| February | 6.1°C | 0.1°C | 19.4°C19 February 1977 | −16.1°C5 February 1989 | 73 / 75 |
| March | 7.4°C | 0.0°C | 28.3°C25 March 2025 | −9.4°C1 March 1971 | 73 / 74 |
| April | 10.9°C | 1.4°C | 28.9°C15 April 2025 | −7.2°C17 April 1972 | 74 / 74 |
| May | 15.6°C | 4.4°C | 32.8°C30 May 1986 | −5.6°C6 May 1965 | 72 / 74 |
| June | 19.8°C | 7.7°C | 37.8°C27 June 2021 | −2.8°C1 June 1966 | 73 / 74 |
| July | 24.4°C | 11.4°C | 35.6°C29 July 2003 | 2.2°C1 July 1955 | 74 / 74 |
| August | 24.3°C | 11.8°C | 36.7°C14 August 2023 | 3.3°C2 August 1956 | 74 / 74 |
| September | 20.8°C | 10.0°C | 36.1°C4 September 1955 | −1.1°C29 September 1950 | 72 / 75 |
| October | 14.6°C | 6.4°C | 31.1°C10 October 1991 | −6.7°C28 October 1971 | 75 / 75 |
| November | 8.1°C | 2.4°C | 25.0°C1 November 1966 | −11.7°C15 November 1955 | 75 / 75 |
| December | 5.3°C | 0.1°C | 18.9°C16 December 1980 | −20.0°C21 December 1990 | 74 / 74 |
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 72 to 75 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.