Denver Intl climate by month
Averages and records for each calendar month at Denver Intl, United States, from 1994 to 2026. The warmest month is July, averaging 32.4°C; the coolest is January at 6.8°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 6.8°C | −7.6°C | 23.9°C27 January 2015 | −28.2°C15 January 2024 | 31 / 31 |
| February | 7.5°C | −7.1°C | 26.7°C10 February 2017 | −28.2°C5 February 2014 | 31 / 32 |
| March | 13.0°C | −2.6°C | 30.6°C25 March 2026 | −21.6°C10 March 2022 | 32 / 32 |
| April | 16.6°C | 1.0°C | 31.7°C22 April 2022 | −14.4°C12 April 1997 | 31 / 31 |
| May | 21.4°C | 6.3°C | 34.4°C29 May 2003 | −6.1°C3 May 2008 | 31 / 31 |
| June | 28.5°C | 11.8°C | 40.6°C25 June 2012 | −0.6°C8 June 2007 | 31 / 31 |
| July | 32.4°C | 15.7°C | 40.6°C20 July 2005 | 6.7°C2 July 1997 | 31 / 32 |
| August | 31.1°C | 14.8°C | 40.0°C1 August 2008 | 5.6°C1 August 1995 | 31 / 32 |
| September | 26.6°C | 10.1°C | 38.3°C5 September 2020 | −3.9°C27 September 1996 | 30 / 31 |
| October | 18.8°C | 2.9°C | 31.7°C1 October 2005 | −16.1°C26 October 1997 | 30 / 30 |
| November | 12.2°C | −3.1°C | 28.3°C2 November 2025 | −25.5°C13 November 2014 | 30 / 30 |
| December | 7.2°C | −7.3°C | 24.4°C22 December 2025 | −31.0°C22 December 2022 | 30 / 31 |
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 30 to 32 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.