Leadville Lake Co AP Weather Records (USW00093009)
Record envelope, standing records and threshold days for Leadville Lake Co AP (USW00093009), Colorado, United States, with 79 years of record.
Key Facts for Leadville Lake Co AP
- Leadville Lake Co AP (USW00093009) is a weather station in Colorado, United States at 39.23 latitude and -106.32 longitude, 3,031 m (9,943 ft) above sea level.
- The station reports from 1948 to 2026, 79 years of record.
- 1,464 records set at Leadville Lake Co AP still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Leadville Lake Co AP tied a daily record high minimum temperature of 3.3 C (37.9 F) on 11 October 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Colorado, United States, 39.23 latitude, -106.32 longitude.
- Elevation: 3,031 m (9,943 ft).
- Period of record: 1948 to 2026, 79 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
22 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 13.9 C (57.0 F) | -36.7 C (-34.1 F) | 7.2 C (45.0 F) | -26.1 C (-15.0 F) |
| Feb | 14.4 C (57.9 F) | -38.9 C (-38.0 F) | 10.0 C (50.0 F) | -23.3 C (-9.9 F) |
| Mar | 18.9 C (66.0 F) | -34.4 C (-29.9 F) | 18.9 C (66.0 F) | -16.1 C (3.0 F) |
| Apr | 18.9 C (66.0 F) | -27.2 C (-17.0 F) | 17.2 C (63.0 F) | -11.1 C (12.0 F) |
| May | 26.7 C (80.1 F) | -16.0 C (3.2 F) | 21.1 C (70.0 F) | -12.2 C (10.0 F) |
| Jun | 30.0 C (86.0 F) | -7.8 C (18.0 F) | 26.1 C (79.0 F) | -2.8 C (27.0 F) |
| Jul | 30.0 C (86.0 F) | -6.1 C (21.0 F) | 28.3 C (82.9 F) | -1.7 C (28.9 F) |
| Aug | 28.9 C (84.0 F) | -5.0 C (23.0 F) | 27.8 C (82.0 F) | 0.6 C (33.1 F) |
| Sep | 27.8 C (82.0 F) | -13.3 C (8.1 F) | 24.4 C (75.9 F) | -3.3 C (26.1 F) |
| Oct | 22.2 C (72.0 F) | -24.9 C (-12.8 F) | 20.0 C (68.0 F) | -2.8 C (27.0 F) |
| Nov | 18.9 C (66.0 F) | -31.1 C (-24.0 F) | n/a | n/a |
| Dec | 13.3 C (55.9 F) | -35.0 C (-31.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1948 | 16 |
| 1949 | 17 |
| 1950 | 14 |
| 1951 | 19 |
| 1952 | 16 |
| 1953 | 24 |
| 1954 | 33 |
| 1955 | 26 |
| 1956 | 22 |
| 1957 | 18 |
| 1958 | 27 |
| 1959 | 22 |
| 1960 | 23 |
| 1961 | 21 |
| 1962 | 20 |
| 1963 | 19 |
| 1964 | 14 |
| 1965 | 27 |
| 1966 | 14 |
| 1967 | 15 |
| 1968 | 17 |
| 1969 | 18 |
| 1970 | 14 |
| 1971 | 21 |
| 1972 | 16 |
| 1973 | 30 |
| 1974 | 23 |
| 1975 | 32 |
| 1976 | 16 |
| 1977 | 12 |
| 1978 | 23 |
| 1979 | 11 |
| 1980 | 9 |
| 1981 | 12 |
| 1982 | 17 |
| 1983 | 14 |
| 1984 | 19 |
| 1985 | 12 |
| 1986 | 16 |
| 1987 | 22 |
| 1988 | 20 |
| 1989 | 24 |
| 1990 | 18 |
| 1991 | 12 |
| 1992 | 12 |
| 1993 | 7 |
| 1994 | 10 |
| 1995 | 20 |
| 1996 | 26 |
| 1997 | 18 |
| 1998 | 15 |
| 1999 | 18 |
| 2000 | 22 |
| 2001 | 18 |
| 2002 | 30 |
| 2003 | 30 |
| 2004 | 12 |
| 2005 | 18 |
| 2006 | 8 |
| 2007 | 19 |
| 2008 | 11 |
| 2009 | 18 |
| 2010 | 23 |
| 2011 | 14 |
| 2012 | 13 |
| 2013 | 25 |
| 2014 | 16 |
| 2015 | 16 |
| 2016 | 22 |
| 2017 | 20 |
| 2018 | 15 |
| 2019 | 15 |
| 2020 | 22 |
| 2021 | 14 |
| 2022 | 17 |
| 2023 | 17 |
| 2024 | 22 |
| 2025 | 23 |
| 2026 | 23 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 1985-02-01 | Record low minimum temperature | Record low minimum temperature -38.9 C (-38.0 F) |
| 1986-02-13 | Record daily precipitation | Record daily precipitation 43.2 mm (1.7 in) |
| 1989-04-03 | Record daily snowfall | Record daily snowfall 46.5 cm (18.3 in) |
| 1992-11-02 | Record daily snowfall | Record daily snowfall 68.1 cm (26.8 in) |
| 2023-08-01 | Record daily precipitation | Record daily precipitation 47.0 mm (1.9 in) |
Wettest Day of Each Month
Aug: 47.0 mm (1.9 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 40.6 mm (1.6 in) | 30 January 1996 |
| Feb | 43.2 mm (1.7 in) | 13 February 1986 |
| Mar | 33.0 mm (1.3 in) | 5 March 1996 |
| Apr | 27.2 mm (1.1 in) | 15 April 1950 |
| May | 30.2 mm (1.2 in) | 15 May 1957 |
| Jun | 24.9 mm (1.0 in) | 8 June 1979 |
| Jul | 36.6 mm (1.4 in) | 21 July 2021 |
| Aug | 47.0 mm (1.9 in) | 1 August 2023 |
| Sep | 31.8 mm (1.3 in) | 29 September 1959 |
| Oct | 33.0 mm (1.3 in) | 29 October 1996 |
| Nov | 18.8 mm (0.7 in) | 1 November 1986 |
| Dec | 33.5 mm (1.3 in) | 12 December 1958 |
Period of Record Coverage
1948 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1948 | 152 | 42% | No |
| 1949 | 356 | 98% | Yes |
| 1950 | 354 | 97% | Yes |
| 1951 | 363 | 99% | Yes |
| 1952 | 365 | 100% | Yes |
| 1953 | 355 | 97% | Yes |
| 1954 | 363 | 99% | Yes |
| 1955 | 358 | 98% | Yes |
| 1956 | 360 | 98% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 362 | 99% | Yes |
| 1959 | 351 | 96% | Yes |
| 1960 | 349 | 95% | Yes |
| 1961 | 354 | 97% | Yes |
| 1962 | 358 | 98% | Yes |
| 1963 | 325 | 89% | No |
| 1964 | 335 | 92% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 361 | 99% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 273 | 75% | No |
| 1972 | 366 | 100% | Yes |
| 1973 | 269 | 74% | No |
| 1974 | 335 | 92% | Yes |
| 1975 | 279 | 76% | No |
| 1976 | 250 | 68% | No |
| 1977 | 364 | 100% | Yes |
| 1978 | 360 | 99% | Yes |
| 1979 | 140 | 38% | No |
| 1980 | 85 | 23% | No |
| 1981 | 203 | 56% | No |
| 1982 | 297 | 81% | No |
| 1983 | 348 | 95% | Yes |
| 1984 | 337 | 92% | Yes |
| 1985 | 341 | 93% | Yes |
| 1986 | 342 | 94% | Yes |
| 1987 | 340 | 93% | Yes |
| 1988 | 338 | 92% | Yes |
| 1989 | 342 | 94% | Yes |
| 1990 | 362 | 99% | Yes |
| 1991 | 359 | 98% | Yes |
| 1992 | 353 | 96% | Yes |
| 1993 | 332 | 91% | Yes |
| 1994 | 329 | 90% | Yes |
| 1995 | 329 | 90% | Yes |
| 1996 | 302 | 83% | No |
| 1997 | 340 | 93% | Yes |
| 1998 | 351 | 96% | Yes |
| 1999 | 354 | 97% | Yes |
| 2000 | 352 | 96% | Yes |
| 2001 | 352 | 96% | Yes |
| 2002 | 351 | 96% | Yes |
| 2003 | 356 | 98% | Yes |
| 2004 | 358 | 98% | Yes |
| 2005 | 355 | 97% | Yes |
| 2006 | 359 | 98% | Yes |
| 2007 | 360 | 99% | Yes |
| 2008 | 353 | 96% | Yes |
| 2009 | 364 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 365 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 362 | 99% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 364 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 365 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 283 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 11 October 2026 | Leadville Lake Co AP, US | daily high min (Tie, Provisional) | 3.3 C (37.9 F) | tie | 17 years | 3 of 100 (Routine) |
| 24 September 2026 | Leadville Lake Co AP, US | daily high min (Provisional) | 5.6 C (42.1 F) | 1.7 C (3.1 F) | 76 years | 35 of 100 (Notable) |
| 17 September 2026 | Leadville Lake Co AP, US | daily high min (Provisional) | 8.3 C (46.9 F) | 1.1 C (2.0 F) | 11 years | 13 of 100 (Routine) |
| 15 September 2026 | Leadville Lake Co AP, US | daily high min (Tie, Provisional) | 6.1 C (43.0 F) | tie | 71 years | 7 of 100 (Routine) |
| 14 September 2026 | Leadville Lake Co AP, US | daily high min (Provisional) | 6.7 C (44.1 F) | 0.6 C (1.1 F) | 64 years | 27 of 100 (Routine) |
| 14 September 2026 | Leadville Lake Co AP, US | daily rain (Provisional) | 10.2 mm (0.4 in) | 2.6 mm (0.10 in) | 15 years | 17 of 100 (Routine) |
| 11 August 2026 | Leadville Lake Co AP, US | daily high max (Tie) | 25.6 C (78.1 F) | tie | 31 years | 4 of 100 (Routine) |
| 8 August 2026 | Leadville Lake Co AP, US | daily high max (Tie) | 26.7 C (80.1 F) | tie | 68 years | 6 of 100 (Routine) |
| 7 August 2026 | Leadville Lake Co AP, US | daily high max | 27.8 C (82.0 F) | 0.6 C (1.1 F) | 68 years | 29 of 100 (Routine) |
| 6 August 2026 | Leadville Lake Co AP, US | daily high max (Tie) | 26.1 C (79.0 F) | tie | 1 year | 1 of 100 (Routine) |
| 4 August 2026 | Leadville Lake Co AP, US | daily high max | 26.1 C (79.0 F) | 0.5 C (0.9 F) | 25 years | 15 of 100 (Routine) |
| 29 July 2026 | Leadville Lake Co AP, US | daily rain | 16.0 mm (0.6 in) | 1.8 mm (0.07 in) | 56 years | 20 of 100 (Routine) |
| 15 July 2026 | Leadville Lake Co AP, US | daily high max | 28.3 C (82.9 F) | 1.6 C (2.9 F) | 24 years | 19 of 100 (Routine) |
| 19 June 2026 | Leadville Lake Co AP, US | daily high max (Tie) | 26.1 C (79.0 F) | tie | 24 years | 3 of 100 (Routine) |
| 13 May 2026 | Leadville Lake Co AP, US | daily high max (Tie) | 21.1 C (70.0 F) | tie | 29 years | 3 of 100 (Routine) |
| 12 May 2026 | Leadville Lake Co AP, US | daily high max (Tie) | 21.1 C (70.0 F) | tie | 65 years | 6 of 100 (Routine) |
| 21 April 2026 | Leadville Lake Co AP, US | daily high max (Tie) | 17.2 C (63.0 F) | tie | 56 years | 6 of 100 (Routine) |
| 30 March 2026 | Leadville Lake Co AP, US | daily high max | 13.9 C (57.0 F) | 1.7 C (3.1 F) | 60 years | 28 of 100 (Routine) |
| 29 March 2026 | Leadville Lake Co AP, US | daily high max | 14.4 C (57.9 F) | 2.7 C (4.9 F) | 57 years | 29 of 100 (Routine) |
| 28 March 2026 | Leadville Lake Co AP, US | daily high max | 15.6 C (60.1 F) | 3.4 C (6.1 F) | 72 years | 34 of 100 (Routine) |
Climate Trend
64 complete years, 1949 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1949 | 1.8 C | -0.07 C |
| 1950 | 2.1 C | +0.23 C |
| 1951 | 1.2 C | -0.60 C |
| 1952 | 1.7 C | -0.11 C |
| 1953 | 2.0 C | +0.15 C |
| 1954 | 3.4 C | +1.57 C |
| 1955 | 1.5 C | -0.37 C |
| 1956 | 2.2 C | +0.40 C |
| 1957 | 1.6 C | -0.21 C |
| 1958 | 3.0 C | +1.13 C |
| 1959 | 2.0 C | +0.14 C |
| 1961 | 1.5 C | -0.37 C |
| 1962 | 2.4 C | +0.53 C |
| 1965 | 1.5 C | -0.29 C |
| 1966 | 2.2 C | +0.42 C |
| 1967 | 2.1 C | +0.31 C |
| 1968 | 1.6 C | -0.25 C |
| 1969 | 2.0 C | +0.17 C |
| 1970 | 1.3 C | -0.57 C |
| 1972 | 0.4 C | -1.42 C |
| 1977 | 1.2 C | -0.64 C |
| 1978 | 0.8 C | -1.01 C |
| 1983 | 1.1 C | -0.74 C |
| 1984 | 0.6 C | -1.25 C |
| 1985 | 0.9 C | -0.95 C |
| 1986 | 1.7 C | -0.15 C |
| 1987 | 1.4 C | -0.42 C |
| 1988 | 1.4 C | -0.45 C |
| 1989 | 1.8 C | -0.05 C |
| 1990 | 1.7 C | -0.12 C |
| 1991 | 1.2 C | -0.60 C |
| 1992 | 1.5 C | -0.33 C |
| 1993 | 1.0 C | -0.82 C |
| 1994 | 1.9 C | +0.08 C |
| 1995 | 1.6 C | -0.20 C |
| 1997 | 1.2 C | -0.59 C |
| 1998 | 2.2 C | +0.36 C |
| 1999 | 2.4 C | +0.54 C |
| 2000 | 2.6 C | +0.82 C |
| 2001 | 2.6 C | +0.74 C |
| 2002 | 2.2 C | +0.33 C |
| 2003 | 2.8 C | +1.01 C |
| 2004 | 2.3 C | +0.44 C |
| 2005 | 2.6 C | +0.81 C |
| 2006 | 2.2 C | +0.41 C |
| 2007 | 2.9 C | +1.06 C |
| 2008 | 1.5 C | -0.30 C |
| 2009 | 1.2 C | -0.63 C |
| 2010 | 1.5 C | -0.29 C |
| 2011 | 1.1 C | -0.70 C |
| 2012 | 2.5 C | +0.64 C |
| 2013 | 0.9 C | -0.92 C |
| 2014 | 1.5 C | -0.35 C |
| 2015 | 2.2 C | +0.40 C |
| 2016 | 2.1 C | +0.29 C |
| 2017 | 2.7 C | +0.87 C |
| 2018 | 2.0 C | +0.18 C |
| 2019 | 1.1 C | -0.76 C |
| 2020 | 1.8 C | -0.06 C |
| 2021 | 2.2 C | +0.34 C |
| 2022 | 1.4 C | -0.38 C |
| 2023 | 2.0 C | +0.21 C |
| 2024 | 2.9 C | +1.09 C |
| 2025 | 2.9 C | +1.05 C |
The fitted trend in annual mean temperature here over 1949 to 2025 is 0.03 C (-0.04 to 0.10) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.2) per decade. The slope is a straight line fitted to 64 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.03 C (-0.04 to 0.10) per decade | 0.1 F (-0.1 to 0.2) per decade | 1949 to 2025 | 64 | Not clearly different from zero |
| Mean daily maximum | 0.12 C (0.03 to 0.21) per decade | 0.2 F (0.1 to 0.4) per decade | 1949 to 2025 | 64 | Rise |
| Mean daily minimum | -0.05 C (-0.14 to 0.04) per decade | -0.1 F (-0.2 to 0.1) per decade | 1949 to 2025 | 64 | Not clearly different from zero |
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1948 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 30.0 C (86.0 F) | 1954 | 26.7 C (80.1 F) | 79 |
| Coldest night (TNn) | -38.9 C (-38.0 F) | 1985 | -28.3 C (-18.9 F) | 79 |
| Wettest day (Rx1day) | 47.0 mm (1.9 in) | 2023 | 21.6 mm (0.9 in) | 79 |
| Wettest five days (Rx5day) | 86.2 mm (3.4 in) | 1959 | 37.5 mm (1.5 in) | 79 |
| Longest dry spell (CDD) | 68 days | 1999 | 26 days | 79 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1948 | 27.2 C (81.0 F) |
| 1949 | 24.4 C (75.9 F) |
| 1950 | 25.0 C (77.0 F) |
| 1951 | 26.7 C (80.1 F) |
| 1952 | 26.1 C (79.0 F) |
| 1953 | 26.1 C (79.0 F) |
| 1954 | 30.0 C (86.0 F) |
| 1955 | 26.1 C (79.0 F) |
| 1956 | 25.6 C (78.1 F) |
| 1957 | 26.7 C (80.1 F) |
| 1958 | 27.8 C (82.0 F) |
| 1959 | 26.7 C (80.1 F) |
| 1960 | 27.8 C (82.0 F) |
| 1961 | 27.8 C (82.0 F) |
| 1962 | 25.6 C (78.1 F) |
| 1963 | 29.4 C (84.9 F) |
| 1964 | 25.0 C (77.0 F) |
| 1965 | 27.8 C (82.0 F) |
| 1966 | 27.2 C (81.0 F) |
| 1967 | 27.2 C (81.0 F) |
| 1968 | 27.2 C (81.0 F) |
| 1969 | 26.7 C (80.1 F) |
| 1970 | 26.7 C (80.1 F) |
| 1971 | 27.2 C (81.0 F) |
| 1972 | 25.6 C (78.1 F) |
| 1973 | 26.1 C (79.0 F) |
| 1974 | 25.0 C (77.0 F) |
| 1975 | 25.6 C (78.1 F) |
| 1976 | 24.4 C (75.9 F) |
| 1977 | 25.6 C (78.1 F) |
| 1978 | 26.7 C (80.1 F) |
| 1979 | 25.0 C (77.0 F) |
| 1980 | 25.6 C (78.1 F) |
| 1981 | 25.6 C (78.1 F) |
| 1982 | 23.9 C (75.0 F) |
| 1983 | 25.6 C (78.1 F) |
| 1984 | 25.6 C (78.1 F) |
| 1985 | 26.7 C (80.1 F) |
| 1986 | 26.1 C (79.0 F) |
| 1987 | 27.8 C (82.0 F) |
| 1988 | 26.1 C (79.0 F) |
| 1989 | 28.3 C (82.9 F) |
| 1990 | 28.3 C (82.9 F) |
| 1991 | 25.6 C (78.1 F) |
| 1992 | 25.0 C (77.0 F) |
| 1993 | 25.6 C (78.1 F) |
| 1994 | 27.2 C (81.0 F) |
| 1995 | 27.8 C (82.0 F) |
| 1996 | 26.7 C (80.1 F) |
| 1997 | 25.6 C (78.1 F) |
| 1998 | 27.2 C (81.0 F) |
| 1999 | 26.7 C (80.1 F) |
| 2000 | 28.9 C (84.0 F) |
| 2001 | 28.9 C (84.0 F) |
| 2002 | 28.9 C (84.0 F) |
| 2003 | 29.4 C (84.9 F) |
| 2004 | 27.8 C (82.0 F) |
| 2005 | 28.3 C (82.9 F) |
| 2006 | 26.1 C (79.0 F) |
| 2007 | 27.8 C (82.0 F) |
| 2008 | 26.7 C (80.1 F) |
| 2009 | 25.6 C (78.1 F) |
| 2010 | 27.2 C (81.0 F) |
| 2011 | 26.1 C (79.0 F) |
| 2012 | 26.1 C (79.0 F) |
| 2013 | 27.2 C (81.0 F) |
| 2014 | 26.1 C (79.0 F) |
| 2015 | 26.1 C (79.0 F) |
| 2016 | 27.8 C (82.0 F) |
| 2017 | 26.1 C (79.0 F) |
| 2018 | 26.1 C (79.0 F) |
| 2019 | 26.1 C (79.0 F) |
| 2020 | 27.2 C (81.0 F) |
| 2021 | 27.8 C (82.0 F) |
| 2022 | 26.1 C (79.0 F) |
| 2023 | 30.0 C (86.0 F) |
| 2024 | 28.9 C (84.0 F) |
| 2025 | 27.8 C (82.0 F) |
| 2026 | 28.3 C (82.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1948 | -23.3 C (-9.9 F) |
| 1949 | -30.0 C (-22.0 F) |
| 1950 | -26.1 C (-15.0 F) |
| 1951 | -35.0 C (-31.0 F) |
| 1952 | -27.2 C (-17.0 F) |
| 1953 | -27.8 C (-18.0 F) |
| 1954 | -24.4 C (-11.9 F) |
| 1955 | -28.9 C (-20.0 F) |
| 1956 | -27.2 C (-17.0 F) |
| 1957 | -25.6 C (-14.1 F) |
| 1958 | -25.0 C (-13.0 F) |
| 1959 | -25.0 C (-13.0 F) |
| 1960 | -28.3 C (-18.9 F) |
| 1961 | -28.3 C (-18.9 F) |
| 1962 | -32.8 C (-27.0 F) |
| 1963 | -36.7 C (-34.1 F) |
| 1964 | -25.6 C (-14.1 F) |
| 1965 | -30.0 C (-22.0 F) |
| 1966 | -27.8 C (-18.0 F) |
| 1967 | -26.7 C (-16.1 F) |
| 1968 | -25.0 C (-13.0 F) |
| 1969 | -25.6 C (-14.1 F) |
| 1970 | -27.8 C (-18.0 F) |
| 1971 | -33.3 C (-27.9 F) |
| 1972 | -35.0 C (-31.0 F) |
| 1973 | -28.9 C (-20.0 F) |
| 1974 | -33.9 C (-29.0 F) |
| 1975 | -33.3 C (-27.9 F) |
| 1976 | -31.1 C (-24.0 F) |
| 1977 | -27.8 C (-18.0 F) |
| 1978 | -32.8 C (-27.0 F) |
| 1979 | -31.1 C (-24.0 F) |
| 1980 | -27.2 C (-17.0 F) |
| 1981 | -26.1 C (-15.0 F) |
| 1982 | -30.6 C (-23.1 F) |
| 1983 | -27.2 C (-17.0 F) |
| 1984 | -30.6 C (-23.1 F) |
| 1985 | -38.9 C (-38.0 F) |
| 1986 | -31.7 C (-25.1 F) |
| 1987 | -28.9 C (-20.0 F) |
| 1988 | -30.6 C (-23.1 F) |
| 1989 | -35.0 C (-31.0 F) |
| 1990 | -35.0 C (-31.0 F) |
| 1991 | -27.8 C (-18.0 F) |
| 1992 | -26.7 C (-16.1 F) |
| 1993 | -27.2 C (-17.0 F) |
| 1994 | -31.7 C (-25.1 F) |
| 1995 | -27.2 C (-17.0 F) |
| 1996 | -30.6 C (-23.1 F) |
| 1997 | -30.6 C (-23.1 F) |
| 1998 | -28.3 C (-18.9 F) |
| 1999 | -27.8 C (-18.0 F) |
| 2000 | -30.0 C (-22.0 F) |
| 2001 | -28.9 C (-20.0 F) |
| 2002 | -34.4 C (-29.9 F) |
| 2003 | -30.0 C (-22.0 F) |
| 2004 | -31.7 C (-25.1 F) |
| 2005 | -29.4 C (-20.9 F) |
| 2006 | -28.3 C (-18.9 F) |
| 2007 | -28.9 C (-20.0 F) |
| 2008 | -29.4 C (-20.9 F) |
| 2009 | -27.1 C (-16.8 F) |
| 2010 | -27.7 C (-17.9 F) |
| 2011 | -35.5 C (-31.9 F) |
| 2012 | -27.1 C (-16.8 F) |
| 2013 | -29.9 C (-21.8 F) |
| 2014 | -26.6 C (-15.9 F) |
| 2015 | -27.1 C (-16.8 F) |
| 2016 | -28.2 C (-18.8 F) |
| 2017 | -27.1 C (-16.8 F) |
| 2018 | -28.2 C (-18.8 F) |
| 2019 | -26.0 C (-14.8 F) |
| 2020 | -27.7 C (-17.9 F) |
| 2021 | -26.6 C (-15.9 F) |
| 2022 | -29.9 C (-21.8 F) |
| 2023 | -26.6 C (-15.9 F) |
| 2024 | -22.7 C (-8.9 F) |
| 2025 | -29.3 C (-20.7 F) |
| 2026 | -26.1 C (-15.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1948 | 17.8 mm (0.7 in) |
| 1949 | 25.4 mm (1.0 in) |
| 1950 | 27.2 mm (1.1 in) |
| 1951 | 28.2 mm (1.1 in) |
| 1952 | 27.4 mm (1.1 in) |
| 1953 | 24.9 mm (1.0 in) |
| 1954 | 18.0 mm (0.7 in) |
| 1955 | 22.6 mm (0.9 in) |
| 1956 | 14.7 mm (0.6 in) |
| 1957 | 30.2 mm (1.2 in) |
| 1958 | 33.5 mm (1.3 in) |
| 1959 | 31.8 mm (1.3 in) |
| 1960 | 33.3 mm (1.3 in) |
| 1961 | 17.8 mm (0.7 in) |
| 1962 | 19.8 mm (0.8 in) |
| 1963 | 23.4 mm (0.9 in) |
| 1964 | 13.7 mm (0.5 in) |
| 1965 | 22.4 mm (0.9 in) |
| 1966 | 27.4 mm (1.1 in) |
| 1967 | 16.0 mm (0.6 in) |
| 1968 | 19.8 mm (0.8 in) |
| 1969 | 24.9 mm (1.0 in) |
| 1970 | 20.1 mm (0.8 in) |
| 1971 | 29.2 mm (1.1 in) |
| 1972 | 12.4 mm (0.5 in) |
| 1973 | 22.4 mm (0.9 in) |
| 1974 | 10.4 mm (0.4 in) |
| 1975 | 29.5 mm (1.2 in) |
| 1976 | 15.0 mm (0.6 in) |
| 1977 | 21.1 mm (0.8 in) |
| 1978 | 7.9 mm (0.31 in) |
| 1979 | 24.9 mm (1.0 in) |
| 1980 | 7.6 mm (0.30 in) |
| 1981 | 20.6 mm (0.8 in) |
| 1982 | 23.4 mm (0.9 in) |
| 1983 | 15.0 mm (0.6 in) |
| 1984 | 21.6 mm (0.9 in) |
| 1985 | 18.8 mm (0.7 in) |
| 1986 | 43.2 mm (1.7 in) |
| 1987 | 20.3 mm (0.8 in) |
| 1988 | 15.0 mm (0.6 in) |
| 1989 | 18.3 mm (0.7 in) |
| 1990 | 16.5 mm (0.6 in) |
| 1991 | 10.2 mm (0.4 in) |
| 1992 | 33.0 mm (1.3 in) |
| 1993 | 13.2 mm (0.5 in) |
| 1994 | 10.4 mm (0.4 in) |
| 1995 | 20.6 mm (0.8 in) |
| 1996 | 40.6 mm (1.6 in) |
| 1997 | 23.4 mm (0.9 in) |
| 1998 | 20.3 mm (0.8 in) |
| 1999 | 24.9 mm (1.0 in) |
| 2000 | 27.9 mm (1.1 in) |
| 2001 | 28.4 mm (1.1 in) |
| 2002 | 23.6 mm (0.9 in) |
| 2003 | 16.0 mm (0.6 in) |
| 2004 | 23.4 mm (0.9 in) |
| 2005 | 25.9 mm (1.0 in) |
| 2006 | 15.5 mm (0.6 in) |
| 2007 | 27.9 mm (1.1 in) |
| 2008 | 16.3 mm (0.6 in) |
| 2009 | 20.8 mm (0.8 in) |
| 2010 | 12.2 mm (0.5 in) |
| 2011 | 24.9 mm (1.0 in) |
| 2012 | 18.3 mm (0.7 in) |
| 2013 | 23.6 mm (0.9 in) |
| 2014 | 28.4 mm (1.1 in) |
| 2015 | 25.4 mm (1.0 in) |
| 2016 | 19.6 mm (0.8 in) |
| 2017 | 19.8 mm (0.8 in) |
| 2018 | 15.5 mm (0.6 in) |
| 2019 | 25.4 mm (1.0 in) |
| 2020 | 27.7 mm (1.1 in) |
| 2021 | 36.6 mm (1.4 in) |
| 2022 | 17.5 mm (0.7 in) |
| 2023 | 47.0 mm (1.9 in) |
| 2024 | 24.4 mm (1.0 in) |
| 2025 | 16.5 mm (0.6 in) |
| 2026 | 16.0 mm (0.6 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1948 | 21.9 mm (0.9 in) |
| 1949 | 42.6 mm (1.7 in) |
| 1950 | 34.9 mm (1.4 in) |
| 1951 | 53.0 mm (2.1 in) |
| 1952 | 53.0 mm (2.1 in) |
| 1953 | 37.5 mm (1.5 in) |
| 1954 | 27.2 mm (1.1 in) |
| 1955 | 42.4 mm (1.7 in) |
| 1956 | 34.6 mm (1.4 in) |
| 1957 | 40.4 mm (1.6 in) |
| 1958 | 48.4 mm (1.9 in) |
| 1959 | 86.2 mm (3.4 in) |
| 1960 | 46.8 mm (1.8 in) |
| 1961 | 38.9 mm (1.5 in) |
| 1962 | 49.3 mm (1.9 in) |
| 1963 | 38.0 mm (1.5 in) |
| 1964 | 44.2 mm (1.7 in) |
| 1965 | 43.2 mm (1.7 in) |
| 1966 | 39.3 mm (1.5 in) |
| 1967 | 32.5 mm (1.3 in) |
| 1968 | 39.9 mm (1.6 in) |
| 1969 | 67.6 mm (2.7 in) |
| 1970 | 30.8 mm (1.2 in) |
| 1971 | 37.1 mm (1.5 in) |
| 1972 | 23.9 mm (0.9 in) |
| 1973 | 31.3 mm (1.2 in) |
| 1974 | 20.7 mm (0.8 in) |
| 1975 | 30.3 mm (1.2 in) |
| 1976 | 30.8 mm (1.2 in) |
| 1977 | 57.2 mm (2.3 in) |
| 1978 | 13.0 mm (0.5 in) |
| 1979 | 37.3 mm (1.5 in) |
| 1980 | 2.5 mm (0.10 in) |
| 1981 | 30.0 mm (1.2 in) |
| 1982 | 29.5 mm (1.2 in) |
| 1983 | 23.5 mm (0.9 in) |
| 1984 | 44.0 mm (1.7 in) |
| 1985 | 39.3 mm (1.5 in) |
| 1986 | 58.1 mm (2.3 in) |
| 1987 | 37.4 mm (1.5 in) |
| 1988 | 26.4 mm (1.0 in) |
| 1989 | 41.7 mm (1.6 in) |
| 1990 | 19.4 mm (0.8 in) |
| 1991 | 25.3 mm (1.0 in) |
| 1992 | 66.5 mm (2.6 in) |
| 1993 | 15.3 mm (0.6 in) |
| 1994 | 16.3 mm (0.6 in) |
| 1995 | 49.6 mm (2.0 in) |
| 1996 | 61.5 mm (2.4 in) |
| 1997 | 34.4 mm (1.4 in) |
| 1998 | 55.3 mm (2.2 in) |
| 1999 | 28.5 mm (1.1 in) |
| 2000 | 36.0 mm (1.4 in) |
| 2001 | 64.4 mm (2.5 in) |
| 2002 | 32.9 mm (1.3 in) |
| 2003 | 36.9 mm (1.5 in) |
| 2004 | 31.3 mm (1.2 in) |
| 2005 | 26.4 mm (1.0 in) |
| 2006 | 30.0 mm (1.2 in) |
| 2007 | 57.2 mm (2.3 in) |
| 2008 | 20.4 mm (0.8 in) |
| 2009 | 39.3 mm (1.5 in) |
| 2010 | 27.1 mm (1.1 in) |
| 2011 | 32.6 mm (1.3 in) |
| 2012 | 35.9 mm (1.4 in) |
| 2013 | 39.3 mm (1.5 in) |
| 2014 | 39.9 mm (1.6 in) |
| 2015 | 43.2 mm (1.7 in) |
| 2016 | 38.1 mm (1.5 in) |
| 2017 | 38.3 mm (1.5 in) |
| 2018 | 31.3 mm (1.2 in) |
| 2019 | 42.9 mm (1.7 in) |
| 2020 | 42.2 mm (1.7 in) |
| 2021 | 61.0 mm (2.4 in) |
| 2022 | 34.7 mm (1.4 in) |
| 2023 | 53.2 mm (2.1 in) |
| 2024 | 46.8 mm (1.8 in) |
| 2025 | 42.2 mm (1.7 in) |
| 2026 | 29.0 mm (1.1 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1948 | 32 days |
| 1949 | 16 days |
| 1950 | 33 days |
| 1951 | 17 days |
| 1952 | 41 days |
| 1953 | 31 days |
| 1954 | 32 days |
| 1955 | 25 days |
| 1956 | 38 days |
| 1957 | 21 days |
| 1958 | 36 days |
| 1959 | 34 days |
| 1960 | 27 days |
| 1961 | 42 days |
| 1962 | 21 days |
| 1963 | 20 days |
| 1964 | 21 days |
| 1965 | 24 days |
| 1966 | 23 days |
| 1967 | 18 days |
| 1968 | 28 days |
| 1969 | 23 days |
| 1970 | 21 days |
| 1971 | 20 days |
| 1972 | 21 days |
| 1973 | 34 days |
| 1974 | 23 days |
| 1975 | 25 days |
| 1976 | 47 days |
| 1977 | 26 days |
| 1978 | 31 days |
| 1979 | 21 days |
| 1980 | 26 days |
| 1981 | 31 days |
| 1982 | 17 days |
| 1983 | 24 days |
| 1984 | 30 days |
| 1985 | 31 days |
| 1986 | 32 days |
| 1987 | 26 days |
| 1988 | 26 days |
| 1989 | 23 days |
| 1990 | 20 days |
| 1991 | 29 days |
| 1992 | 37 days |
| 1993 | 27 days |
| 1994 | 33 days |
| 1995 | 33 days |
| 1996 | 22 days |
| 1997 | 30 days |
| 1998 | 52 days |
| 1999 | 68 days |
| 2000 | 24 days |
| 2001 | 22 days |
| 2002 | 20 days |
| 2003 | 29 days |
| 2004 | 27 days |
| 2005 | 25 days |
| 2006 | 34 days |
| 2007 | 30 days |
| 2008 | 42 days |
| 2009 | 15 days |
| 2010 | 22 days |
| 2011 | 20 days |
| 2012 | 26 days |
| 2013 | 18 days |
| 2014 | 29 days |
| 2015 | 20 days |
| 2016 | 29 days |
| 2017 | 25 days |
| 2018 | 19 days |
| 2019 | 31 days |
| 2020 | 27 days |
| 2021 | 16 days |
| 2022 | 20 days |
| 2023 | 25 days |
| 2024 | 29 days |
| 2025 | 29 days |
| 2026 | 28 days |
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Frost Dates and Growing Season
64 years with a frostAcross 64 years with a frost, the median last spring frost at Leadville Lake Co AP falls on 25 June and the median first autumn frost on 9 August, which leaves a median of 44 days between them.
In 1995 to 2025 the median growing season was 48 days. That is 3 days more than in 1949 to 1990.
Fitted over all years, the growing season changes by -4.4 days per decade at this station.
| Measure | Median, all years | Earliest period (1949 to 1990) | Recent period (1995 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 25 June | 23 June | 26 June | 3 days later | +1.0 days per decade |
| First autumn frost | 9 August | 10 August | 10 August | no change | -3.4 days per decade |
| Growing days | 44 days | 45 days | 48 days | 3 days more | -4.4 days per decade |
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
67 years, 1949 to 2025A day with at least 21.8 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 44.5 mm (1.8 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 21.8 mm (0.9 in) | |
| 5 years | 28.6 mm (1.1 in) | |
| 10 years | 32.8 mm (1.3 in) | |
| 25 years | 37.8 mm (1.5 in) | |
| 50 years | 41.2 mm (1.6 in) | |
| 100 years | 44.5 mm (1.8 in) | Longer than the 67 years of record |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 67 years of values from 1949 to 2025.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 47.0 mm (1.9 in) in 2023; 43.2 mm (1.7 in) in 1986; 40.6 mm (1.6 in) in 1996.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Leadville Lake Co AP, at 2009. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 2009 ran 0.4 C (0.6 F) lower than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 2009 | -0.4 | -0.6 | likely | 5 |
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Climate Twins
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Leadville Lake Co AP had a mean temperature of 2.0 C (35.5 F) and 392.1 mm (15.4 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Spicer (United States, 139 km away), Grand Lake 1 NW (United States, 123 km away) and Alta Lufthavn (Norway, 7,212 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Spicer | United States | 139 km (86 mi) | 2.3 C (36.2 F) | 359.8 mm (14.2 in) | 0.74 |
| Grand Lake 1 NW | United States | 123 km (76 mi) | 2.2 C (35.9 F) | 524.5 mm (20.6 in) | 0.84 |
| Alta Lufthavn | Norway | 7,212 km (4,481 mi) | 1.3 C (34.3 F) | 389.7 mm (15.3 in) | 0.92 |
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-14).