Guymon Muni climate by month
Averages and records for each calendar month at Guymon Muni, United States, from 1998 to 2026. The warmest month is July, averaging 35.1°C; the coolest is January at 10.5°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 10.5°C | −5.6°C | 28.3°C7 January 2006 | −23.2°C21 January 2025 | 28 / 28 |
| February | 12.3°C | −4.6°C | 33.9°C10 February 2017 | −25.5°C15 February 2021 | 28 / 28 |
| March | 17.9°C | 0.5°C | 38.9°C26 March 2026 | −17.1°C3 March 2014 | 28 / 28 |
| April | 22.5°C | 5.1°C | 37.2°C23 April 2006 | −7.1°C24 April 2013 | 28 / 28 |
| May | 27.1°C | 10.7°C | 41.1°C29 May 2011 | −2.1°C3 May 2013 | 28 / 28 |
| June | 32.7°C | 16.8°C | 45.0°C26 June 2011 | 4.4°C8 June 2007 | 28 / 28 |
| July | 35.1°C | 19.2°C | 43.3°C9 July 2009 | 10.6°C11 July 1999 | 28 / 28 |
| August | 34.1°C | 18.3°C | 42.8°C8 August 2025 | 10.0°C26 August 2010 | 28 / 28 |
| September | 30.2°C | 13.8°C | 41.1°C4 September 2000 | 0.6°C25 September 2000 | 27 / 28 |
| October | 23.1°C | 6.4°C | 36.7°C16 October 2016 | −11.6°C31 October 2019 | 27 / 27 |
| November | 16.6°C | −0.3°C | 31.7°C2 November 2005 | −16.6°C12 November 2019 | 27 / 27 |
| December | 10.8°C | −4.9°C | 30.0°C25 December 2025 | −23.8°C18 December 2016 | 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 27 to 28 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.