Leadville/Lake Cnty climate by month
Averages and records for each calendar month at Leadville/Lake Cnty, United States, from 1948 to 2026. The warmest month is July, averaging 22.2°C; the coolest is January at −1.0°C.
| Month | Avg high | Avg low | Record high | Record low | Years |
|---|---|---|---|---|---|
| January | −1.0°C | −15.5°C | 13.9°C13 January 1996 | −36.7°C12 January 1963 | 74 / 76 |
| February | 0.0°C | −15.0°C | 14.4°C19 February 1958 | −38.9°C1 February 1985 | 75 / 76 |
| March | 2.9°C | −11.7°C | 18.9°C21 March 2026 | −34.4°C2 March 2002 | 71 / 74 |
| April | 6.7°C | −7.5°C | 18.9°C24 April 1949 | −27.2°C12 April 1980 | 74 / 77 |
| May | 13.0°C | −2.7°C | 26.7°C30 May 2002 | −16.0°C2 May 2011 | 74 / 77 |
| June | 19.5°C | 1.2°C | 30.0°C23 June 1954 | −7.8°C19 June 1973 | 68 / 75 |
| July | 22.2°C | 4.1°C | 30.0°C17 July 2023 | −6.1°C3 July 2004 | 71 / 75 |
| August | 20.8°C | 3.5°C | 28.9°C1 August 2024 | −5.0°C28 August 2004 | 76 / 78 |
| September | 17.2°C | 0.0°C | 27.8°C4 September 1960 | −13.3°C27 September 1996 | 73 / 76 |
| October | 11.0°C | −4.6°C | 22.2°C21 October 2003 | −24.9°C30 October 2023 | 73 / 76 |
| November | 3.7°C | −10.6°C | 18.9°C16 November 1999 | −31.1°C28 November 1976 | 72 / 76 |
| December | −0.6°C | −14.7°C | 13.3°C1 December 2003 | −35.0°C23 December 1990 | 72 / 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 68 to 76 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.