Grand Lake 6 SSW Weather Records (USC00053500)
Record envelope, standing records and threshold days for Grand Lake 6 SSW (USC00053500), Colorado, United States, with 79 years of record.
Key Facts for Grand Lake 6 SSW
- Grand Lake 6 SSW (USC00053500) is a weather station in Colorado, United States at 40.18 latitude and -105.87 longitude, 2,527 m (8,290 ft) above sea level.
- The station reports from 1948 to 2026, 79 years of record.
- 1,464 records set at Grand Lake 6 SSW still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Grand Lake 6 SSW tied a monthly record high maximum temperature of 23.3 C (73.9 F) on 7 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, 40.18 latitude, -105.87 longitude.
- Elevation: 2,527 m (8,290 ft).
- Period of record: 1948 to 2026, 79 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
34 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 9.4 C (48.9 F) | -43.3 C (-45.9 F) | 8.3 C (46.9 F) | -28.9 C (-20.0 F) |
| Feb | 11.7 C (53.1 F) | -41.1 C (-42.0 F) | 8.9 C (48.0 F) | -22.8 C (-9.0 F) |
| Mar | 20.6 C (69.1 F) | -34.4 C (-29.9 F) | 20.6 C (69.1 F) | -15.6 C (3.9 F) |
| Apr | 22.8 C (73.0 F) | -27.2 C (-17.0 F) | 19.4 C (66.9 F) | -8.3 C (17.1 F) |
| May | 30.0 C (86.0 F) | -18.3 C (-0.9 F) | 22.8 C (73.0 F) | -6.7 C (19.9 F) |
| Jun | 31.1 C (88.0 F) | -6.1 C (21.0 F) | 26.1 C (79.0 F) | 0.6 C (33.1 F) |
| Jul | 31.7 C (89.1 F) | -2.8 C (27.0 F) | 30.0 C (86.0 F) | 3.3 C (37.9 F) |
| Aug | 31.1 C (88.0 F) | -3.9 C (25.0 F) | 30.0 C (86.0 F) | 4.4 C (39.9 F) |
| Sep | 28.3 C (82.9 F) | -10.0 C (14.0 F) | 26.1 C (79.0 F) | 1.1 C (34.0 F) |
| Oct | 23.3 C (73.9 F) | -22.2 C (-8.0 F) | 23.3 C (73.9 F) | 2.2 C (36.0 F) |
| Nov | 18.3 C (64.9 F) | -30.0 C (-22.0 F) | n/a | n/a |
| Dec | 14.4 C (57.9 F) | -37.2 C (-35.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1948 | 18 |
| 1949 | 21 |
| 1950 | 41 |
| 1951 | 33 |
| 1952 | 20 |
| 1953 | 14 |
| 1954 | 26 |
| 1955 | 21 |
| 1956 | 26 |
| 1957 | 14 |
| 1958 | 8 |
| 1959 | 24 |
| 1960 | 19 |
| 1961 | 13 |
| 1962 | 27 |
| 1963 | 16 |
| 1964 | 18 |
| 1965 | 25 |
| 1966 | 12 |
| 1967 | 13 |
| 1968 | 15 |
| 1969 | 24 |
| 1970 | 23 |
| 1971 | 18 |
| 1972 | 14 |
| 1973 | 14 |
| 1974 | 11 |
| 1975 | 25 |
| 1976 | 11 |
| 1977 | 14 |
| 1978 | 27 |
| 1979 | 34 |
| 1980 | 17 |
| 1981 | 16 |
| 1982 | 23 |
| 1983 | 16 |
| 1984 | 13 |
| 1985 | 12 |
| 1986 | 15 |
| 1987 | 13 |
| 1988 | 14 |
| 1989 | 23 |
| 1990 | 26 |
| 1991 | 12 |
| 1992 | 23 |
| 1993 | 10 |
| 1994 | 11 |
| 1995 | 14 |
| 1996 | 15 |
| 1997 | 10 |
| 1998 | 16 |
| 1999 | 16 |
| 2000 | 23 |
| 2001 | 12 |
| 2002 | 39 |
| 2003 | 28 |
| 2004 | 23 |
| 2005 | 15 |
| 2006 | 22 |
| 2007 | 21 |
| 2008 | 12 |
| 2009 | 11 |
| 2010 | 14 |
| 2011 | 17 |
| 2012 | 22 |
| 2013 | 20 |
| 2014 | 16 |
| 2015 | 9 |
| 2016 | 10 |
| 2017 | 26 |
| 2018 | 15 |
| 2019 | 10 |
| 2020 | 15 |
| 2021 | 15 |
| 2022 | 16 |
| 2023 | 15 |
| 2024 | 7 |
| 2025 | 38 |
| 2026 | 39 |
All-Time Record Progression
4 new records| Date | Kind | Detail |
|---|---|---|
| 1986-02-20 | Record daily snowfall | Record daily snowfall 49.5 cm (19.5 in) |
| 1989-02-06 | Record low maximum temperature | Record low maximum temperature -22.2 C (-8.0 F) |
| 1997-07-31 | Record daily precipitation | Record daily precipitation 38.9 mm (1.5 in) |
| 2002-07-01 | Record high maximum temperature | Record high maximum temperature 31.7 C (89.1 F) |
Wettest Day of Each Month
Jul: 38.9 mm (1.5 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 19.8 mm (0.8 in) | 29 January 1951 |
| Feb | 18.3 mm (0.7 in) | 20 February 1986 |
| Mar | 17.5 mm (0.7 in) | 3 March 1964 |
| Apr | 33.5 mm (1.3 in) | 23 April 2000 |
| May | 36.3 mm (1.4 in) | 7 May 1969 |
| Jun | 34.8 mm (1.4 in) | 8 June 2023 |
| Jul | 38.9 mm (1.5 in) | 31 July 1997 |
| Aug | 31.8 mm (1.3 in) | 19 August 2004 |
| Sep | 38.9 mm (1.5 in) | 12 September 2008 |
| Oct | 36.8 mm (1.4 in) | 3 October 1969 |
| Nov | 28.4 mm (1.1 in) | 9 November 1985 |
| Dec | 33.8 mm (1.3 in) | 30 December 1951 |
Period of Record Coverage
1948 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1948 | 153 | 42% | No |
| 1949 | 357 | 98% | Yes |
| 1950 | 362 | 99% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 361 | 99% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 364 | 100% | Yes |
| 1956 | 365 | 100% | Yes |
| 1957 | 363 | 99% | Yes |
| 1958 | 362 | 99% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 364 | 99% | Yes |
| 1961 | 363 | 99% | Yes |
| 1962 | 364 | 100% | Yes |
| 1963 | 363 | 99% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 363 | 99% | Yes |
| 1966 | 364 | 100% | Yes |
| 1967 | 363 | 99% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 363 | 99% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 365 | 100% | Yes |
| 1973 | 360 | 99% | Yes |
| 1974 | 364 | 100% | Yes |
| 1975 | 362 | 99% | Yes |
| 1976 | 365 | 100% | Yes |
| 1977 | 359 | 98% | Yes |
| 1978 | 362 | 99% | Yes |
| 1979 | 362 | 99% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 364 | 100% | Yes |
| 1982 | 359 | 98% | Yes |
| 1983 | 363 | 99% | Yes |
| 1984 | 365 | 100% | Yes |
| 1985 | 360 | 99% | Yes |
| 1986 | 361 | 99% | Yes |
| 1987 | 362 | 99% | Yes |
| 1988 | 363 | 99% | Yes |
| 1989 | 332 | 91% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 364 | 100% | Yes |
| 1992 | 347 | 95% | Yes |
| 1993 | 343 | 94% | Yes |
| 1994 | 362 | 99% | Yes |
| 1995 | 362 | 99% | Yes |
| 1996 | 360 | 98% | Yes |
| 1997 | 357 | 98% | Yes |
| 1998 | 357 | 98% | Yes |
| 1999 | 359 | 98% | Yes |
| 2000 | 361 | 99% | Yes |
| 2001 | 351 | 96% | Yes |
| 2002 | 362 | 99% | Yes |
| 2003 | 358 | 98% | Yes |
| 2004 | 359 | 98% | Yes |
| 2005 | 334 | 92% | Yes |
| 2006 | 364 | 100% | Yes |
| 2007 | 358 | 98% | Yes |
| 2008 | 364 | 99% | Yes |
| 2009 | 329 | 90% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 364 | 100% | Yes |
| 2015 | 333 | 91% | Yes |
| 2016 | 365 | 100% | Yes |
| 2017 | 349 | 96% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 359 | 98% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 336 | 92% | Yes |
| 2024 | 345 | 94% | Yes |
| 2025 | 354 | 97% | Yes |
| 2026 | 240 | 66% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 7 October 2026 | Grand Lake 6 SSW, US | monthly high max (Tie, Provisional) | 23.3 C (73.9 F) | tie | 34 years | 6 of 100 (Routine) |
| 21 August 2026 | Grand Lake 6 SSW, US | daily high max (Tie, Provisional) | 28.3 C (82.9 F) | tie | 3 years | 1 of 100 (Routine) |
| 13 August 2026 | Grand Lake 6 SSW, US | daily rain | 12.4 mm (0.5 in) | 1.2 mm (0.05 in) | 12 years | 13 of 100 (Routine) |
| 9 August 2026 | Grand Lake 6 SSW, US | daily high max | 28.9 C (84.0 F) | 1.1 C (2.0 F) | 56 years | 28 of 100 (Routine) |
| 8 August 2026 | Grand Lake 6 SSW, US | daily high max | 29.4 C (84.9 F) | 1.1 C (2.0 F) | 56 years | 28 of 100 (Routine) |
| 7 August 2026 | Grand Lake 6 SSW, US | daily high max | 28.9 C (84.0 F) | 0.6 C (1.1 F) | 47 years | 23 of 100 (Routine) |
| 4 August 2026 | Grand Lake 6 SSW, US | daily high max | 29.4 C (84.9 F) | 0.5 C (0.9 F) | 47 years | 22 of 100 (Routine) |
| 4 August 2026 | Grand Lake 6 SSW, US | daily high min (Tie) | 10.6 C (51.1 F) | tie | 63 years | 6 of 100 (Routine) |
| 3 August 2026 | Grand Lake 6 SSW, US | daily high max | 30.0 C (86.0 F) | 1.1 C (2.0 F) | 24 years | 18 of 100 (Routine) |
| 2 August 2026 | Grand Lake 6 SSW, US | daily high max (Tie) | 29.4 C (84.9 F) | tie | 17 years | 3 of 100 (Routine) |
| 30 July 2026 | Grand Lake 6 SSW, US | daily high min (Tie) | 11.1 C (52.0 F) | tie | 56 years | 6 of 100 (Routine) |
| 27 July 2026 | Grand Lake 6 SSW, US | all-time high min (Tie) | 13.9 C (57.0 F) | tie | 49 years | 10 of 100 (Routine) |
| 25 July 2026 | Grand Lake 6 SSW, US | daily high max (Tie) | 29.4 C (84.9 F) | tie | 24 years | 3 of 100 (Routine) |
| 24 July 2026 | Grand Lake 6 SSW, US | daily rain | 11.7 mm (0.5 in) | 1.8 mm (0.07 in) | 4 years | 12 of 100 (Routine) |
| 23 July 2026 | Grand Lake 6 SSW, US | daily high min | 12.8 C (55.0 F) | 1.7 C (3.1 F) | 43 years | 25 of 100 (Routine) |
| 22 July 2026 | Grand Lake 6 SSW, US | daily high min | 12.2 C (54.0 F) | 1.6 C (2.9 F) | 72 years | 34 of 100 (Routine) |
| 13 July 2026 | Grand Lake 6 SSW, US | daily high max (Tie) | 30.0 C (86.0 F) | tie | 20 years | 3 of 100 (Routine) |
| 12 July 2026 | Grand Lake 6 SSW, US | daily high max (Tie) | 30.0 C (86.0 F) | tie | 72 years | 7 of 100 (Routine) |
| 11 July 2026 | Grand Lake 6 SSW, US | daily high max (Tie) | 29.4 C (84.9 F) | tie | 72 years | 7 of 100 (Routine) |
| 9 July 2026 | Grand Lake 6 SSW, US | daily high min | 11.1 C (52.0 F) | 0.5 C (0.9 F) | 20 years | 14 of 100 (Routine) |
Climate Trend
70 complete years, 1949 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1949 | 1.9 C | -0.66 C |
| 1950 | 2.4 C | -0.15 C |
| 1951 | 1.6 C | -0.92 C |
| 1952 | 1.8 C | -0.77 C |
| 1953 | 2.6 C | +0.08 C |
| 1954 | 3.6 C | +1.08 C |
| 1955 | 1.7 C | -0.82 C |
| 1956 | 2.1 C | -0.52 C |
| 1957 | 2.2 C | -0.37 C |
| 1958 | 2.7 C | +0.10 C |
| 1959 | 2.1 C | -0.46 C |
| 1960 | 2.5 C | -0.08 C |
| 1961 | 1.9 C | -0.63 C |
| 1962 | 2.2 C | -0.38 C |
| 1963 | 3.2 C | +0.67 C |
| 1964 | 1.2 C | -1.33 C |
| 1965 | 2.0 C | -0.56 C |
| 1966 | 2.2 C | -0.34 C |
| 1967 | 2.2 C | -0.33 C |
| 1968 | 1.2 C | -1.39 C |
| 1969 | 2.1 C | -0.44 C |
| 1970 | 1.6 C | -0.94 C |
| 1971 | 1.8 C | -0.73 C |
| 1972 | 2.4 C | -0.13 C |
| 1973 | 1.4 C | -1.17 C |
| 1974 | 1.9 C | -0.69 C |
| 1975 | 1.6 C | -1.01 C |
| 1976 | 2.2 C | -0.35 C |
| 1977 | 3.2 C | +0.64 C |
| 1978 | 2.5 C | -0.04 C |
| 1979 | 1.6 C | -0.98 C |
| 1980 | 2.8 C | +0.21 C |
| 1981 | 3.6 C | +1.05 C |
| 1982 | 1.8 C | -0.74 C |
| 1983 | 2.4 C | -0.17 C |
| 1984 | 1.6 C | -0.98 C |
| 1985 | 2.1 C | -0.44 C |
| 1986 | 3.2 C | +0.60 C |
| 1987 | 2.7 C | +0.15 C |
| 1988 | 2.5 C | -0.07 C |
| 1990 | 2.7 C | +0.10 C |
| 1991 | 2.1 C | -0.50 C |
| 1992 | 2.3 C | -0.23 C |
| 1993 | 1.8 C | -0.80 C |
| 1994 | 2.8 C | +0.27 C |
| 1995 | 3.0 C | +0.39 C |
| 1996 | 2.6 C | +0.04 C |
| 1997 | 2.3 C | -0.23 C |
| 1998 | 3.4 C | +0.85 C |
| 1999 | 3.5 C | +0.96 C |
| 2000 | 3.4 C | +0.88 C |
| 2001 | 3.6 C | +1.00 C |
| 2002 | 2.8 C | +0.23 C |
| 2003 | 3.9 C | +1.30 C |
| 2004 | 3.2 C | +0.67 C |
| 2006 | 2.9 C | +0.36 C |
| 2007 | 3.4 C | +0.87 C |
| 2008 | 2.2 C | -0.32 C |
| 2010 | 2.7 C | +0.15 C |
| 2011 | 2.3 C | -0.23 C |
| 2012 | 4.3 C | +1.69 C |
| 2013 | 2.3 C | -0.27 C |
| 2014 | 3.2 C | +0.62 C |
| 2016 | 3.3 C | +0.71 C |
| 2018 | 4.0 C | +1.40 C |
| 2019 | 2.4 C | -0.19 C |
| 2020 | 3.5 C | +0.92 C |
| 2021 | 4.0 C | +1.48 C |
| 2022 | 2.5 C | -0.09 C |
| 2025 | 4.7 C | +2.15 C |
The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1949 to 2025. In Fahrenheit: 0.4 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 70 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.2 C (0.1 to 0.3) per decade | 0.4 F (0.2 to 0.5) per decade | 1949 to 2025 | 70 | Rise |
| Mean daily maximum | 0.2 C (0.1 to 0.3) per decade | 0.4 F (0.2 to 0.5) per decade | 1949 to 2025 | 70 | Rise |
| Mean daily minimum | 0.2 C (0.1 to 0.3) per decade | 0.3 F (0.2 to 0.5) per decade | 1949 to 2025 | 70 | Rise |
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) | 31.7 C (89.1 F) | 2002 | 27.8 C (82.0 F) | 79 |
| Coldest night (TNn) | -43.3 C (-45.9 F) | 1962 | -33.3 C (-27.9 F) | 79 |
| Wettest day (Rx1day) | 38.9 mm (1.5 in) | 1997 | 19.1 mm (0.8 in) | 79 |
| Wettest five days (Rx5day) | 83.3 mm (3.3 in) | 1961 | 32.7 mm (1.3 in) | 79 |
| Longest dry spell (CDD) | 54 days | 1953 | 25 days | 79 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1948 | 27.8 C (82.0 F) |
| 1949 | 27.8 C (82.0 F) |
| 1950 | 26.7 C (80.1 F) |
| 1951 | 28.3 C (82.9 F) |
| 1952 | 27.8 C (82.0 F) |
| 1953 | 28.3 C (82.9 F) |
| 1954 | 31.1 C (88.0 F) |
| 1955 | 28.3 C (82.9 F) |
| 1956 | 26.7 C (80.1 F) |
| 1957 | 27.2 C (81.0 F) |
| 1958 | 27.8 C (82.0 F) |
| 1959 | 26.7 C (80.1 F) |
| 1960 | 27.8 C (82.0 F) |
| 1961 | 26.1 C (79.0 F) |
| 1962 | 26.7 C (80.1 F) |
| 1963 | 28.3 C (82.9 F) |
| 1964 | 27.8 C (82.0 F) |
| 1965 | 26.1 C (79.0 F) |
| 1966 | 27.8 C (82.0 F) |
| 1967 | 26.7 C (80.1 F) |
| 1968 | 26.7 C (80.1 F) |
| 1969 | 28.3 C (82.9 F) |
| 1970 | 27.2 C (81.0 F) |
| 1971 | 27.8 C (82.0 F) |
| 1972 | 26.7 C (80.1 F) |
| 1973 | 27.2 C (81.0 F) |
| 1974 | 26.1 C (79.0 F) |
| 1975 | 27.8 C (82.0 F) |
| 1976 | 27.2 C (81.0 F) |
| 1977 | 27.8 C (82.0 F) |
| 1978 | 28.9 C (84.0 F) |
| 1979 | 29.4 C (84.9 F) |
| 1980 | 27.8 C (82.0 F) |
| 1981 | 28.3 C (82.9 F) |
| 1982 | 28.3 C (82.9 F) |
| 1983 | 27.2 C (81.0 F) |
| 1984 | 26.1 C (79.0 F) |
| 1985 | 28.3 C (82.9 F) |
| 1986 | 27.2 C (81.0 F) |
| 1987 | 29.4 C (84.9 F) |
| 1988 | 28.3 C (82.9 F) |
| 1989 | 29.4 C (84.9 F) |
| 1990 | 30.0 C (86.0 F) |
| 1991 | 28.3 C (82.9 F) |
| 1992 | 27.2 C (81.0 F) |
| 1993 | 27.8 C (82.0 F) |
| 1994 | 27.8 C (82.0 F) |
| 1995 | 27.8 C (82.0 F) |
| 1996 | 27.8 C (82.0 F) |
| 1997 | 27.2 C (81.0 F) |
| 1998 | 30.6 C (87.1 F) |
| 1999 | 27.8 C (82.0 F) |
| 2000 | 28.9 C (84.0 F) |
| 2001 | 29.4 C (84.9 F) |
| 2002 | 31.7 C (89.1 F) |
| 2003 | 31.1 C (88.0 F) |
| 2004 | 28.3 C (82.9 F) |
| 2005 | 31.1 C (88.0 F) |
| 2006 | 31.1 C (88.0 F) |
| 2007 | 30.0 C (86.0 F) |
| 2008 | 30.0 C (86.0 F) |
| 2009 | 26.7 C (80.1 F) |
| 2010 | 28.3 C (82.9 F) |
| 2011 | 27.8 C (82.0 F) |
| 2012 | 30.0 C (86.0 F) |
| 2013 | 30.6 C (87.1 F) |
| 2014 | 28.3 C (82.9 F) |
| 2015 | 26.7 C (80.1 F) |
| 2016 | 29.4 C (84.9 F) |
| 2017 | 26.7 C (80.1 F) |
| 2018 | 28.3 C (82.9 F) |
| 2019 | 27.2 C (81.0 F) |
| 2020 | 27.8 C (82.0 F) |
| 2021 | 30.0 C (86.0 F) |
| 2022 | 27.8 C (82.0 F) |
| 2023 | 28.9 C (84.0 F) |
| 2024 | 28.9 C (84.0 F) |
| 2025 | 27.2 C (81.0 F) |
| 2026 | 30.0 C (86.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1948 | -33.9 C (-29.0 F) |
| 1949 | -37.2 C (-35.0 F) |
| 1950 | -35.6 C (-32.1 F) |
| 1951 | -40.6 C (-41.1 F) |
| 1952 | -38.3 C (-36.9 F) |
| 1953 | -31.7 C (-25.1 F) |
| 1954 | -33.3 C (-27.9 F) |
| 1955 | -33.3 C (-27.9 F) |
| 1956 | -36.1 C (-33.0 F) |
| 1957 | -33.3 C (-27.9 F) |
| 1958 | -30.6 C (-23.1 F) |
| 1959 | -30.6 C (-23.1 F) |
| 1960 | -32.2 C (-26.0 F) |
| 1961 | -31.1 C (-24.0 F) |
| 1962 | -43.3 C (-45.9 F) |
| 1963 | -40.0 C (-40.0 F) |
| 1964 | -36.7 C (-34.1 F) |
| 1965 | -34.4 C (-29.9 F) |
| 1966 | -32.2 C (-26.0 F) |
| 1967 | -35.6 C (-32.1 F) |
| 1968 | -31.1 C (-24.0 F) |
| 1969 | -32.2 C (-26.0 F) |
| 1970 | -32.8 C (-27.0 F) |
| 1971 | -37.8 C (-36.0 F) |
| 1972 | -37.8 C (-36.0 F) |
| 1973 | -33.3 C (-27.9 F) |
| 1974 | -36.1 C (-33.0 F) |
| 1975 | -37.2 C (-35.0 F) |
| 1976 | -30.0 C (-22.0 F) |
| 1977 | -30.0 C (-22.0 F) |
| 1978 | -35.0 C (-31.0 F) |
| 1979 | -38.9 C (-38.0 F) |
| 1980 | -31.7 C (-25.1 F) |
| 1981 | -28.9 C (-20.0 F) |
| 1982 | -39.4 C (-38.9 F) |
| 1983 | -27.8 C (-18.0 F) |
| 1984 | -37.8 C (-36.0 F) |
| 1985 | -41.1 C (-42.0 F) |
| 1986 | -35.0 C (-31.0 F) |
| 1987 | -30.0 C (-22.0 F) |
| 1988 | -33.9 C (-29.0 F) |
| 1989 | -40.6 C (-41.1 F) |
| 1990 | -37.2 C (-35.0 F) |
| 1991 | -33.3 C (-27.9 F) |
| 1992 | -32.8 C (-27.0 F) |
| 1993 | -32.8 C (-27.0 F) |
| 1994 | -34.4 C (-29.9 F) |
| 1995 | -35.0 C (-31.0 F) |
| 1996 | -35.6 C (-32.1 F) |
| 1997 | -31.7 C (-25.1 F) |
| 1998 | -29.4 C (-20.9 F) |
| 1999 | -28.9 C (-20.0 F) |
| 2000 | -30.6 C (-23.1 F) |
| 2001 | -29.4 C (-20.9 F) |
| 2002 | -31.7 C (-25.1 F) |
| 2003 | -35.0 C (-31.0 F) |
| 2004 | -33.9 C (-29.0 F) |
| 2005 | -31.1 C (-24.0 F) |
| 2006 | -33.3 C (-27.9 F) |
| 2007 | -36.7 C (-34.1 F) |
| 2008 | -33.9 C (-29.0 F) |
| 2009 | -30.6 C (-23.1 F) |
| 2010 | -35.6 C (-32.1 F) |
| 2011 | -38.9 C (-38.0 F) |
| 2012 | -30.6 C (-23.1 F) |
| 2013 | -32.8 C (-27.0 F) |
| 2014 | -30.0 C (-22.0 F) |
| 2015 | -29.4 C (-20.9 F) |
| 2016 | -32.2 C (-26.0 F) |
| 2017 | -37.2 C (-35.0 F) |
| 2018 | -25.6 C (-14.1 F) |
| 2019 | -30.0 C (-22.0 F) |
| 2020 | -33.3 C (-27.9 F) |
| 2021 | -27.8 C (-18.0 F) |
| 2022 | -33.3 C (-27.9 F) |
| 2023 | -32.2 C (-26.0 F) |
| 2024 | -33.3 C (-27.9 F) |
| 2025 | -35.6 C (-32.1 F) |
| 2026 | -28.9 C (-20.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1948 | 13.2 mm (0.5 in) |
| 1949 | 20.1 mm (0.8 in) |
| 1950 | 18.5 mm (0.7 in) |
| 1951 | 33.8 mm (1.3 in) |
| 1952 | 24.4 mm (1.0 in) |
| 1953 | 20.8 mm (0.8 in) |
| 1954 | 14.2 mm (0.6 in) |
| 1955 | 14.5 mm (0.6 in) |
| 1956 | 17.3 mm (0.7 in) |
| 1957 | 24.4 mm (1.0 in) |
| 1958 | 15.5 mm (0.6 in) |
| 1959 | 21.3 mm (0.8 in) |
| 1960 | 19.8 mm (0.8 in) |
| 1961 | 29.7 mm (1.2 in) |
| 1962 | 16.0 mm (0.6 in) |
| 1963 | 18.0 mm (0.7 in) |
| 1964 | 18.8 mm (0.7 in) |
| 1965 | 17.5 mm (0.7 in) |
| 1966 | 24.6 mm (1.0 in) |
| 1967 | 14.2 mm (0.6 in) |
| 1968 | 15.0 mm (0.6 in) |
| 1969 | 36.8 mm (1.4 in) |
| 1970 | 21.8 mm (0.9 in) |
| 1971 | 15.2 mm (0.6 in) |
| 1972 | 12.7 mm (0.5 in) |
| 1973 | 29.7 mm (1.2 in) |
| 1974 | 15.7 mm (0.6 in) |
| 1975 | 18.3 mm (0.7 in) |
| 1976 | 18.0 mm (0.7 in) |
| 1977 | 13.5 mm (0.5 in) |
| 1978 | 8.6 mm (0.34 in) |
| 1979 | 18.3 mm (0.7 in) |
| 1980 | 14.7 mm (0.6 in) |
| 1981 | 18.3 mm (0.7 in) |
| 1982 | 14.0 mm (0.6 in) |
| 1983 | 30.2 mm (1.2 in) |
| 1984 | 30.5 mm (1.2 in) |
| 1985 | 28.4 mm (1.1 in) |
| 1986 | 22.6 mm (0.9 in) |
| 1987 | 16.0 mm (0.6 in) |
| 1988 | 24.6 mm (1.0 in) |
| 1989 | 20.1 mm (0.8 in) |
| 1990 | 15.2 mm (0.6 in) |
| 1991 | 23.9 mm (0.9 in) |
| 1992 | 19.1 mm (0.8 in) |
| 1993 | 32.5 mm (1.3 in) |
| 1994 | 13.0 mm (0.5 in) |
| 1995 | 24.9 mm (1.0 in) |
| 1996 | 18.0 mm (0.7 in) |
| 1997 | 38.9 mm (1.5 in) |
| 1998 | 26.2 mm (1.0 in) |
| 1999 | 19.1 mm (0.8 in) |
| 2000 | 33.5 mm (1.3 in) |
| 2001 | 17.8 mm (0.7 in) |
| 2002 | 18.3 mm (0.7 in) |
| 2003 | 26.7 mm (1.1 in) |
| 2004 | 31.8 mm (1.3 in) |
| 2005 | 21.3 mm (0.8 in) |
| 2006 | 17.8 mm (0.7 in) |
| 2007 | 19.8 mm (0.8 in) |
| 2008 | 38.9 mm (1.5 in) |
| 2009 | 19.8 mm (0.8 in) |
| 2010 | 19.3 mm (0.8 in) |
| 2011 | 30.0 mm (1.2 in) |
| 2012 | 20.3 mm (0.8 in) |
| 2013 | 24.1 mm (0.9 in) |
| 2014 | 35.1 mm (1.4 in) |
| 2015 | 13.5 mm (0.5 in) |
| 2016 | 16.5 mm (0.6 in) |
| 2017 | 18.0 mm (0.7 in) |
| 2018 | 13.0 mm (0.5 in) |
| 2019 | 19.8 mm (0.8 in) |
| 2020 | 21.1 mm (0.8 in) |
| 2021 | 13.7 mm (0.5 in) |
| 2022 | 22.4 mm (0.9 in) |
| 2023 | 34.8 mm (1.4 in) |
| 2024 | 15.2 mm (0.6 in) |
| 2025 | 14.0 mm (0.6 in) |
| 2026 | 14.0 mm (0.6 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1948 | 37.7 mm (1.5 in) |
| 1949 | 23.4 mm (0.9 in) |
| 1950 | 29.2 mm (1.1 in) |
| 1951 | 55.9 mm (2.2 in) |
| 1952 | 38.7 mm (1.5 in) |
| 1953 | 29.7 mm (1.2 in) |
| 1954 | 32.8 mm (1.3 in) |
| 1955 | 24.9 mm (1.0 in) |
| 1956 | 44.7 mm (1.8 in) |
| 1957 | 47.0 mm (1.9 in) |
| 1958 | 34.3 mm (1.4 in) |
| 1959 | 46.5 mm (1.8 in) |
| 1960 | 22.1 mm (0.9 in) |
| 1961 | 83.3 mm (3.3 in) |
| 1962 | 25.7 mm (1.0 in) |
| 1963 | 29.2 mm (1.1 in) |
| 1964 | 30.6 mm (1.2 in) |
| 1965 | 27.6 mm (1.1 in) |
| 1966 | 40.1 mm (1.6 in) |
| 1967 | 26.6 mm (1.0 in) |
| 1968 | 19.3 mm (0.8 in) |
| 1969 | 68.1 mm (2.7 in) |
| 1970 | 37.6 mm (1.5 in) |
| 1971 | 24.5 mm (1.0 in) |
| 1972 | 25.3 mm (1.0 in) |
| 1973 | 34.3 mm (1.4 in) |
| 1974 | 37.6 mm (1.5 in) |
| 1975 | 21.4 mm (0.8 in) |
| 1976 | 29.0 mm (1.1 in) |
| 1977 | 30.9 mm (1.2 in) |
| 1978 | 16.3 mm (0.6 in) |
| 1979 | 33.8 mm (1.3 in) |
| 1980 | 30.5 mm (1.2 in) |
| 1981 | 25.1 mm (1.0 in) |
| 1982 | 27.2 mm (1.1 in) |
| 1983 | 40.7 mm (1.6 in) |
| 1984 | 62.2 mm (2.4 in) |
| 1985 | 43.7 mm (1.7 in) |
| 1986 | 42.4 mm (1.7 in) |
| 1987 | 21.1 mm (0.8 in) |
| 1988 | 28.4 mm (1.1 in) |
| 1989 | 28.5 mm (1.1 in) |
| 1990 | 31.4 mm (1.2 in) |
| 1991 | 36.6 mm (1.4 in) |
| 1992 | 33.0 mm (1.3 in) |
| 1993 | 32.5 mm (1.3 in) |
| 1994 | 24.7 mm (1.0 in) |
| 1995 | 37.0 mm (1.5 in) |
| 1996 | 39.5 mm (1.6 in) |
| 1997 | 55.2 mm (2.2 in) |
| 1998 | 52.6 mm (2.1 in) |
| 1999 | 32.5 mm (1.3 in) |
| 2000 | 38.6 mm (1.5 in) |
| 2001 | 23.8 mm (0.9 in) |
| 2002 | 29.5 mm (1.2 in) |
| 2003 | 46.3 mm (1.8 in) |
| 2004 | 54.1 mm (2.1 in) |
| 2005 | 48.2 mm (1.9 in) |
| 2006 | 23.9 mm (0.9 in) |
| 2007 | 40.5 mm (1.6 in) |
| 2008 | 40.7 mm (1.6 in) |
| 2009 | 32.0 mm (1.3 in) |
| 2010 | 33.3 mm (1.3 in) |
| 2011 | 53.6 mm (2.1 in) |
| 2012 | 36.5 mm (1.4 in) |
| 2013 | 30.8 mm (1.2 in) |
| 2014 | 41.4 mm (1.6 in) |
| 2015 | 32.7 mm (1.3 in) |
| 2016 | 27.9 mm (1.1 in) |
| 2017 | 39.3 mm (1.5 in) |
| 2018 | 23.9 mm (0.9 in) |
| 2019 | 43.3 mm (1.7 in) |
| 2020 | 26.9 mm (1.1 in) |
| 2021 | 31.0 mm (1.2 in) |
| 2022 | 34.6 mm (1.4 in) |
| 2023 | 34.8 mm (1.4 in) |
| 2024 | 22.9 mm (0.9 in) |
| 2025 | 20.1 mm (0.8 in) |
| 2026 | 17.9 mm (0.7 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1948 | 22 days |
| 1949 | 25 days |
| 1950 | 30 days |
| 1951 | 21 days |
| 1952 | 46 days |
| 1953 | 54 days |
| 1954 | 22 days |
| 1955 | 38 days |
| 1956 | 33 days |
| 1957 | 18 days |
| 1958 | 34 days |
| 1959 | 22 days |
| 1960 | 20 days |
| 1961 | 25 days |
| 1962 | 27 days |
| 1963 | 28 days |
| 1964 | 20 days |
| 1965 | 23 days |
| 1966 | 24 days |
| 1967 | 17 days |
| 1968 | 26 days |
| 1969 | 34 days |
| 1970 | 27 days |
| 1971 | 18 days |
| 1972 | 24 days |
| 1973 | 23 days |
| 1974 | 22 days |
| 1975 | 27 days |
| 1976 | 19 days |
| 1977 | 21 days |
| 1978 | 27 days |
| 1979 | 25 days |
| 1980 | 40 days |
| 1981 | 27 days |
| 1982 | 21 days |
| 1983 | 15 days |
| 1984 | 10 days |
| 1985 | 14 days |
| 1986 | 49 days |
| 1987 | 26 days |
| 1988 | 17 days |
| 1989 | 35 days |
| 1990 | 20 days |
| 1991 | 23 days |
| 1992 | 29 days |
| 1993 | 15 days |
| 1994 | 20 days |
| 1995 | 15 days |
| 1996 | 23 days |
| 1997 | 39 days |
| 1998 | 40 days |
| 1999 | 41 days |
| 2000 | 32 days |
| 2001 | 20 days |
| 2002 | 27 days |
| 2003 | 44 days |
| 2004 | 20 days |
| 2005 | 20 days |
| 2006 | 33 days |
| 2007 | 29 days |
| 2008 | 21 days |
| 2009 | 22 days |
| 2010 | 42 days |
| 2011 | 35 days |
| 2012 | 44 days |
| 2013 | 21 days |
| 2014 | 18 days |
| 2015 | 34 days |
| 2016 | 33 days |
| 2017 | 28 days |
| 2018 | 23 days |
| 2019 | 27 days |
| 2020 | 29 days |
| 2021 | 37 days |
| 2022 | 23 days |
| 2023 | 34 days |
| 2024 | 27 days |
| 2025 | 33 days |
| 2026 | 24 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
70 years with a frostAcross 70 years with a frost, the median last spring frost at Grand Lake 6 SSW falls on 20 June and the median first autumn frost on 25 August, which leaves a median of 67 days between them.
In 1990 to 2025 the median growing season was 73 days. That is 13 days more than in 1949 to 1978.
Fitted over all years, the growing season changes by +4.7 days per decade at this station.
| Measure | Median, all years | Earliest period (1949 to 1978) | Recent period (1990 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 20 June | 20 June | 21 June | 1 day later | -0.8 days per decade |
| First autumn frost | 25 August | 20 August | 4 September | 15 days later | +3.9 days per decade |
| Growing days | 67 days | 60 days | 73 days | 13 days more | +4.7 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
76 years, 1949 to 2025A day with at least 19.6 mm (0.8 in) of rain is expected about once in 2 years. A day with at least 45.5 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 | 19.6 mm (0.8 in) | |
| 5 years | 25.7 mm (1.0 in) | |
| 10 years | 30.0 mm (1.2 in) | |
| 25 years | 35.9 mm (1.4 in) | |
| 50 years | 40.6 mm (1.6 in) | |
| 100 years | 45.5 mm (1.8 in) | Longer than the 76 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, 76 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: 38.9 mm (1.5 in) in 1997; 38.9 mm (1.5 in) in 2008; 36.8 mm (1.4 in) in 1969.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2006 to 2025 against 1961 to 1990Over 2006 to 2025, Grand Lake 6 SSW had a mean temperature of 3.2 C (37.7 F) and 323.4 mm (12.7 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Lake George 8 SW (United States, 146 km away), Scofield Dam (United States, 449 km away) and Lake City (United States, 270 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Lake George 8 SW | United States | 146 km (91 mi) | 3.4 C (38.0 F) | 323.9 mm (12.8 in) | 0.61 |
| Scofield Dam | United States | 449 km (279 mi) | 2.8 C (37.0 F) | 358.6 mm (14.1 in) | 0.77 |
| Lake City | United States | 270 km (168 mi) | 3.6 C (38.5 F) | 342.4 mm (13.5 in) | 0.88 |
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).