Cheyenne Rgnl climate by month
Averages and records for each calendar month at Cheyenne Rgnl, United States, from 1915 to 2026. The warmest month is July, averaging 28.3°C; the coolest is January at 3.4°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 3.4°C | −8.9°C | 21.1°C27 January 2015 | −34.4°C17 January 1930 | 112 / 112 |
| February | 4.5°C | −8.0°C | 21.7°C11 February 1962 | −36.7°C8 February 1936 | 112 / 112 |
| March | 7.6°C | −5.3°C | 28.3°C21 March 2026 | −29.4°C2 March 1943 | 112 / 112 |
| April | 12.3°C | −1.2°C | 28.9°C30 April 2020 | −22.2°C1 April 1975 | 112 / 112 |
| May | 17.7°C | 4.0°C | 32.8°C29 May 2000 | −12.7°C2 May 2013 | 112 / 112 |
| June | 24.1°C | 9.1°C | 37.8°C23 June 1954 | −3.9°C2 June 1951 | 112 / 112 |
| July | 28.3°C | 12.7°C | 37.8°C11 July 1939 | 0.6°C4 July 1915 | 112 / 112 |
| August | 27.2°C | 11.9°C | 36.7°C1 August 2008 | 2.2°C25 August 1975 | 112 / 112 |
| September | 22.3°C | 6.9°C | 36.1°C7 September 2022 | −13.3°C30 September 1985 | 111 / 112 |
| October | 15.5°C | 1.0°C | 29.4°C2 October 2024 | −18.3°C31 October 1991 | 111 / 111 |
| November | 8.3°C | −4.5°C | 23.9°C15 November 1999 | −29.4°C13 November 1916 | 111 / 111 |
| December | 4.3°C | −7.8°C | 21.1°C2 December 2021 | −33.3°C9 December 1919 | 111 / 111 |
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 111 to 112 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.