Aspen/Pitkin Cnty weather by month
Averages and records for each calendar month at Aspen/Pitkin Cnty, United States, from 1998 to 2026. The warmest month is July, averaging 27.7°C; the coolest is January at 0.7°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | 0.7°C | −13.2°C | 16.7°C2 January 2006 | −27.8°C11 January 2011 | 28 / 28 |
| February | 2.6°C | −11.3°C | 15.6°C3 February 2025 | −32.2°C3 February 2011 | 28 / 28 |
| March | 7.6°C | −6.4°C | 25.0°C25 March 2026 | −26.7°C3 March 2002 | 28 / 28 |
| April | 12.2°C | −2.5°C | 23.9°C23 April 2012 | −17.2°C1 April 2008 | 28 / 28 |
| May | 17.6°C | 1.3°C | 30.0°C31 May 2002 | −8.3°C6 May 1999 | 28 / 29 |
| June | 24.5°C | 5.6°C | 33.3°C20 June 2016 | −3.9°C5 June 1999 | 29 / 29 |
| July | 27.7°C | 9.2°C | 33.9°C21 July 2026 | 1.7°C5 July 2010 | 29 / 29 |
| August | 25.9°C | 8.4°C | 32.8°C14 August 2003 | 0.0°C28 August 2004 | 29 / 29 |
| September | 22.0°C | 4.3°C | 31.7°C3 September 2019 | −8.3°C29 September 1999 | 28 / 29 |
| October | 14.7°C | −1.7°C | 26.7°C1 October 2015 | −20.5°C31 October 2019 | 28 / 28 |
| November | 7.3°C | −7.4°C | 19.4°C7 November 1999 | −26.6°C25 November 2010 | 28 / 28 |
| December | 1.0°C | −12.5°C | 15.0°C1 December 1998 | −29.4°C8 December 2005 | 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 28 to 29 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.