Great Sand Dunes Np & Preserve Weather Records (USC00053541)
Record envelope, standing records and threshold days for Great Sand Dunes Np & Preserve (USC00053541), Colorado, United States, with 77 years of record.
Key Facts for Great Sand Dunes Np & Preserve
- Great Sand Dunes Np & Preserve (USC00053541) is a weather station in Colorado, United States at 37.73 latitude and -105.51 longitude, 2,494 m (8,183 ft) above sea level.
- The station reports from 1950 to 2026, 77 years of record.
- 1,464 records set at Great Sand Dunes Np & Preserve still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Great Sand Dunes Np & Preserve tied a daily record high minimum temperature of 13.3 C (55.9 F) on 30 August 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, 37.73 latitude, -105.51 longitude.
- Elevation: 2,494 m (8,183 ft).
- Period of record: 1950 to 2026, 77 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
36 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 19.4 C (66.9 F) | -31.7 C (-25.1 F) | 10.0 C (50.0 F) | -20.0 C (-4.0 F) |
| Feb | 17.2 C (63.0 F) | -30.0 C (-22.0 F) | 15.0 C (59.0 F) | -15.0 C (5.0 F) |
| Mar | 25.6 C (78.1 F) | -22.8 C (-9.0 F) | 25.6 C (78.1 F) | -8.3 C (17.1 F) |
| Apr | 25.6 C (78.1 F) | -21.1 C (-6.0 F) | 22.8 C (73.0 F) | -8.9 C (16.0 F) |
| May | 31.7 C (89.1 F) | -9.4 C (15.1 F) | 27.2 C (81.0 F) | -4.4 C (24.1 F) |
| Jun | 35.6 C (96.1 F) | -3.9 C (25.0 F) | 31.7 C (89.1 F) | 7.2 C (45.0 F) |
| Jul | 34.4 C (93.9 F) | 2.2 C (36.0 F) | 32.8 C (91.0 F) | 10.0 C (50.0 F) |
| Aug | 33.3 C (91.9 F) | 0.6 C (33.1 F) | 33.3 C (91.9 F) | 10.0 C (50.0 F) |
| Sep | 30.6 C (87.1 F) | -5.6 C (21.9 F) | 15.0 C (59.0 F) | 7.2 C (45.0 F) |
| Oct | 26.7 C (80.1 F) | -17.8 C (0.0 F) | n/a | n/a |
| Nov | 19.4 C (66.9 F) | -24.4 C (-11.9 F) | n/a | n/a |
| Dec | 16.1 C (61.0 F) | -28.3 C (-18.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1950 | 15 |
| 1951 | 26 |
| 1952 | 17 |
| 1953 | 22 |
| 1954 | 7 |
| 1955 | 24 |
| 1956 | 18 |
| 1957 | 21 |
| 1958 | 8 |
| 1959 | 17 |
| 1960 | 18 |
| 1961 | 18 |
| 1962 | 30 |
| 1963 | 22 |
| 1964 | 14 |
| 1965 | 26 |
| 1966 | 20 |
| 1967 | 24 |
| 1968 | 14 |
| 1969 | 21 |
| 1970 | 17 |
| 1971 | 40 |
| 1972 | 21 |
| 1973 | 16 |
| 1974 | 19 |
| 1975 | 18 |
| 1976 | 12 |
| 1977 | 11 |
| 1978 | 13 |
| 1979 | 25 |
| 1980 | 20 |
| 1981 | 17 |
| 1982 | 18 |
| 1983 | 25 |
| 1984 | 14 |
| 1985 | 13 |
| 1986 | 25 |
| 1987 | 16 |
| 1988 | 6 |
| 1989 | 36 |
| 1990 | 29 |
| 1991 | 15 |
| 1992 | 18 |
| 1993 | 9 |
| 1994 | 9 |
| 1995 | 18 |
| 1996 | 22 |
| 1997 | 14 |
| 1998 | 23 |
| 1999 | 16 |
| 2000 | 30 |
| 2001 | 11 |
| 2002 | 17 |
| 2003 | 25 |
| 2004 | 15 |
| 2005 | 21 |
| 2006 | 14 |
| 2007 | 16 |
| 2008 | 13 |
| 2009 | 14 |
| 2010 | 15 |
| 2011 | 16 |
| 2012 | 16 |
| 2013 | 30 |
| 2014 | 9 |
| 2015 | 17 |
| 2016 | 20 |
| 2017 | 20 |
| 2018 | 15 |
| 2019 | 17 |
| 2020 | 27 |
| 2021 | 25 |
| 2022 | 18 |
| 2023 | 11 |
| 2024 | 21 |
| 2025 | 28 |
| 2026 | 46 |
All-Time Record Progression
8 new records| Date | Kind | Detail |
|---|---|---|
| 1982-06-29 | Record high maximum temperature | Record high maximum temperature 35.6 C (96.1 F) |
| 1985-09-29 | Record daily precipitation | Record daily precipitation 53.3 mm (2.1 in) |
| 1991-12-02 | Record snow depth | Record snow depth 50.8 cm (20.0 in) |
| 1992-03-04 | Record snow depth | Record snow depth 61.0 cm (24.0 in) |
| 2003-03-19 | Record daily snowfall | Record daily snowfall 47.0 cm (18.5 in) |
| 2007-07-28 | Record daily precipitation | Record daily precipitation 71.1 mm (2.8 in) |
| 2011-02-02 | Record low maximum temperature | Record low maximum temperature -20.0 C (-4.0 F) |
| 2026-07-21 | Record high minimum temperature | Record high minimum temperature 18.9 C (66.0 F) |
Wettest Day of Each Month
Jul: 71.1 mm (2.8 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 21.6 mm (0.9 in) | 30 January 2005 |
| Feb | 17.8 mm (0.7 in) | 20 February 1989 |
| Mar | 33.5 mm (1.3 in) | 25 March 2024 |
| Apr | 35.8 mm (1.4 in) | 3 April 2004 |
| May | 66.0 mm (2.6 in) | 6 May 2025 |
| Jun | 29.0 mm (1.1 in) | 30 June 1995 |
| Jul | 71.1 mm (2.8 in) | 28 July 2007 |
| Aug | 36.8 mm (1.4 in) | 6 August 1954 |
| Sep | 53.3 mm (2.1 in) | 29 September 1985 |
| Oct | 50.8 mm (2.0 in) | 19 October 2024 |
| Nov | 30.0 mm (1.2 in) | 28 November 1997 |
| Dec | 20.3 mm (0.8 in) | 15 December 1988 |
Period of Record Coverage
1950 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1950 | 116 | 32% | No |
| 1951 | 365 | 100% | Yes |
| 1952 | 365 | 100% | Yes |
| 1953 | 363 | 99% | Yes |
| 1954 | 361 | 99% | Yes |
| 1955 | 361 | 99% | Yes |
| 1956 | 363 | 99% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 360 | 99% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 363 | 99% | Yes |
| 1962 | 364 | 100% | Yes |
| 1963 | 361 | 99% | Yes |
| 1964 | 362 | 99% | Yes |
| 1965 | 363 | 99% | Yes |
| 1966 | 364 | 100% | Yes |
| 1967 | 363 | 99% | Yes |
| 1968 | 363 | 99% | Yes |
| 1969 | 363 | 99% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 361 | 99% | Yes |
| 1972 | 365 | 100% | Yes |
| 1973 | 362 | 99% | Yes |
| 1974 | 330 | 90% | Yes |
| 1975 | 364 | 100% | Yes |
| 1976 | 361 | 99% | Yes |
| 1977 | 359 | 98% | Yes |
| 1978 | 305 | 84% | No |
| 1979 | 317 | 87% | No |
| 1980 | 365 | 100% | Yes |
| 1981 | 362 | 99% | Yes |
| 1982 | 363 | 99% | Yes |
| 1983 | 362 | 99% | Yes |
| 1984 | 365 | 100% | Yes |
| 1985 | 363 | 99% | Yes |
| 1986 | 360 | 99% | Yes |
| 1987 | 267 | 73% | No |
| 1988 | 231 | 63% | No |
| 1989 | 361 | 99% | Yes |
| 1990 | 356 | 98% | Yes |
| 1991 | 356 | 98% | Yes |
| 1992 | 358 | 98% | Yes |
| 1993 | 358 | 98% | Yes |
| 1994 | 353 | 97% | Yes |
| 1995 | 352 | 96% | Yes |
| 1996 | 349 | 95% | Yes |
| 1997 | 362 | 99% | Yes |
| 1998 | 363 | 99% | Yes |
| 1999 | 361 | 99% | Yes |
| 2000 | 363 | 99% | Yes |
| 2001 | 363 | 99% | Yes |
| 2002 | 360 | 99% | Yes |
| 2003 | 358 | 98% | Yes |
| 2004 | 362 | 99% | Yes |
| 2005 | 362 | 99% | Yes |
| 2006 | 334 | 92% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 365 | 100% | Yes |
| 2013 | 340 | 93% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 364 | 100% | Yes |
| 2018 | 354 | 97% | Yes |
| 2019 | 364 | 100% | Yes |
| 2020 | 366 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 364 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 360 | 99% | Yes |
| 2026 | 245 | 67% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 30 August 2026 | Great Sand Dunes Np & Preserve, US | daily high min (Tie, Provisional) | 13.3 C (55.9 F) | tie | 56 years | 5 of 100 (Routine) |
| 29 August 2026 | Great Sand Dunes Np & Preserve, US | daily high max (Provisional) | 30.0 C (86.0 F) | 0.6 C (1.1 F) | 12 years | 12 of 100 (Routine) |
| 28 August 2026 | Great Sand Dunes Np & Preserve, US | daily high max (Tie, Provisional) | 29.4 C (84.9 F) | tie | 64 years | 6 of 100 (Routine) |
| 25 August 2026 | Great Sand Dunes Np & Preserve, US | daily high min (Tie, Provisional) | 12.8 C (55.0 F) | tie | 37 years | 4 of 100 (Routine) |
| 23 August 2026 | Great Sand Dunes Np & Preserve, US | daily high min (Provisional) | 13.9 C (57.0 F) | 0.6 C (1.1 F) | 13 years | 13 of 100 (Routine) |
| 22 August 2026 | Great Sand Dunes Np & Preserve, US | daily high max (Tie, Provisional) | 31.1 C (88.0 F) | tie | 0 years | 1 of 100 (Routine) |
| 20 August 2026 | Great Sand Dunes Np & Preserve, US | daily high max (Tie, Provisional) | 30.6 C (87.1 F) | tie | 40 years | 4 of 100 (Routine) |
| 19 August 2026 | Great Sand Dunes Np & Preserve, US | daily high min (Tie, Provisional) | 15.0 C (59.0 F) | tie | 15 years | 2 of 100 (Routine) |
| 13 August 2026 | Great Sand Dunes Np & Preserve, US | daily high max | 32.2 C (90.0 F) | 1.6 C (2.9 F) | 29 years | 20 of 100 (Routine) |
| 12 August 2026 | Great Sand Dunes Np & Preserve, US | daily high max | 32.2 C (90.0 F) | 2.2 C (4.0 F) | 53 years | 30 of 100 (Routine) |
| 11 August 2026 | Great Sand Dunes Np & Preserve, US | daily high max | 32.2 C (90.0 F) | 1.1 C (2.0 F) | 45 years | 23 of 100 (Routine) |
| 10 August 2026 | Great Sand Dunes Np & Preserve, US | daily high max | 32.2 C (90.0 F) | 2.2 C (4.0 F) | 45 years | 27 of 100 (Routine) |
| 10 August 2026 | Great Sand Dunes Np & Preserve, US | daily high min | 15.6 C (60.1 F) | 1.2 C (2.2 F) | 20 years | 18 of 100 (Routine) |
| 9 August 2026 | Great Sand Dunes Np & Preserve, US | daily high max | 32.2 C (90.0 F) | 1.6 C (2.9 F) | 68 years | 32 of 100 (Routine) |
| 9 August 2026 | Great Sand Dunes Np & Preserve, US | daily high min (Tie) | 15.6 C (60.1 F) | tie | 56 years | 6 of 100 (Routine) |
| 8 August 2026 | Great Sand Dunes Np & Preserve, US | daily high max | 31.7 C (89.1 F) | 0.6 C (1.1 F) | 45 years | 22 of 100 (Routine) |
| 7 August 2026 | Great Sand Dunes Np & Preserve, US | daily high max | 32.2 C (90.0 F) | 1.1 C (2.0 F) | 65 years | 29 of 100 (Routine) |
| 7 August 2026 | Great Sand Dunes Np & Preserve, US | daily high min | 16.1 C (61.0 F) | 2.2 C (4.0 F) | 31 years | 25 of 100 (Routine) |
| 6 August 2026 | Great Sand Dunes Np & Preserve, US | daily high max | 32.2 C (90.0 F) | 0.5 C (0.9 F) | 16 years | 13 of 100 (Routine) |
| 4 August 2026 | Great Sand Dunes Np & Preserve, US | monthly high max | 33.3 C (91.9 F) | 1.1 C (2.0 F) | 23 years | 27 of 100 (Routine) |
Climate Trend
68 complete years, 1951 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1951 | 6.8 C | +0.01 C |
| 1952 | 6.0 C | -0.80 C |
| 1953 | 6.4 C | -0.40 C |
| 1954 | 7.6 C | +0.86 C |
| 1955 | 6.5 C | -0.30 C |
| 1956 | 6.5 C | -0.29 C |
| 1957 | 6.3 C | -0.47 C |
| 1958 | 7.2 C | +0.43 C |
| 1959 | 6.7 C | -0.08 C |
| 1960 | 6.4 C | -0.33 C |
| 1961 | 6.1 C | -0.68 C |
| 1962 | 6.9 C | +0.11 C |
| 1963 | 7.3 C | +0.57 C |
| 1964 | 5.5 C | -1.25 C |
| 1965 | 6.0 C | -0.73 C |
| 1966 | 6.4 C | -0.32 C |
| 1967 | 6.3 C | -0.49 C |
| 1968 | 5.4 C | -1.37 C |
| 1969 | 6.2 C | -0.60 C |
| 1970 | 6.3 C | -0.44 C |
| 1971 | 6.3 C | -0.42 C |
| 1972 | 6.6 C | -0.18 C |
| 1973 | 5.4 C | -1.37 C |
| 1975 | 5.7 C | -1.05 C |
| 1976 | 6.3 C | -0.48 C |
| 1977 | 7.3 C | +0.58 C |
| 1980 | 7.4 C | +0.64 C |
| 1981 | 7.5 C | +0.73 C |
| 1982 | 6.2 C | -0.59 C |
| 1983 | 5.9 C | -0.83 C |
| 1984 | 5.5 C | -1.27 C |
| 1985 | 6.3 C | -0.44 C |
| 1986 | 7.0 C | +0.21 C |
| 1989 | 7.2 C | +0.42 C |
| 1990 | 6.9 C | +0.13 C |
| 1991 | 6.0 C | -0.79 C |
| 1992 | 5.3 C | -1.44 C |
| 1993 | 5.8 C | -0.97 C |
| 1994 | 6.9 C | +0.17 C |
| 1995 | 7.0 C | +0.29 C |
| 1996 | 7.3 C | +0.53 C |
| 1997 | 6.1 C | -0.61 C |
| 1998 | 6.6 C | -0.19 C |
| 1999 | 7.4 C | +0.63 C |
| 2000 | 7.8 C | +1.00 C |
| 2001 | 7.3 C | +0.53 C |
| 2002 | 7.3 C | +0.54 C |
| 2003 | 7.7 C | +0.98 C |
| 2004 | 6.7 C | -0.01 C |
| 2005 | 7.3 C | +0.53 C |
| 2007 | 6.6 C | -0.18 C |
| 2008 | 6.0 C | -0.71 C |
| 2009 | 6.5 C | -0.24 C |
| 2010 | 7.2 C | +0.44 C |
| 2011 | 6.8 C | +0.07 C |
| 2012 | 7.8 C | +1.05 C |
| 2014 | 6.9 C | +0.15 C |
| 2015 | 7.2 C | +0.49 C |
| 2016 | 7.0 C | +0.25 C |
| 2017 | 7.9 C | +1.14 C |
| 2018 | 8.1 C | +1.35 C |
| 2019 | 6.5 C | -0.28 C |
| 2020 | 7.8 C | +1.03 C |
| 2021 | 7.8 C | +1.04 C |
| 2022 | 7.3 C | +0.58 C |
| 2023 | 7.4 C | +0.64 C |
| 2024 | 7.7 C | +0.97 C |
| 2025 | 8.5 C | +1.71 C |
The annual mean temperature here has risen by 0.2 C (0.1 to 0.2) per decade over 1951 to 2025. In Fahrenheit: 0.3 F (0.2 to 0.4) per decade. The slope is a straight line fitted to 68 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 0.2) per decade | 0.3 F (0.2 to 0.4) per decade | 1951 to 2025 | 68 | Rise |
| Mean daily maximum | 0.04 C (-0.04 to 0.13) per decade | 0.1 F (-0.1 to 0.2) per decade | 1951 to 2025 | 68 | Not clearly different from zero |
| Mean daily minimum | 0.3 C (0.2 to 0.4) per decade | 0.5 F (0.4 to 0.6) per decade | 1951 to 2025 | 68 | 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
1950 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 35.6 C (96.1 F) | 1982 | 31.7 C (89.1 F) | 77 |
| Coldest night (TNn) | -31.7 C (-25.1 F) | 1963 | -22.8 C (-9.0 F) | 77 |
| Wettest day (Rx1day) | 71.1 mm (2.8 in) | 2007 | 26.2 mm (1.0 in) | 77 |
| Wettest five days (Rx5day) | 89.9 mm (3.5 in) | 2025 | 37.7 mm (1.5 in) | 77 |
| Longest dry spell (CDD) | 71 days | 1963 | 37 days | 77 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1950 | 26.1 C (79.0 F) |
| 1951 | 32.2 C (90.0 F) |
| 1952 | 31.1 C (88.0 F) |
| 1953 | 31.7 C (89.1 F) |
| 1954 | 32.8 C (91.0 F) |
| 1955 | 30.6 C (87.1 F) |
| 1956 | 29.4 C (84.9 F) |
| 1957 | 32.2 C (90.0 F) |
| 1958 | 31.1 C (88.0 F) |
| 1959 | 28.9 C (84.0 F) |
| 1960 | 31.1 C (88.0 F) |
| 1961 | 30.6 C (87.1 F) |
| 1962 | 31.7 C (89.1 F) |
| 1963 | 31.1 C (88.0 F) |
| 1964 | 32.2 C (90.0 F) |
| 1965 | 30.0 C (86.0 F) |
| 1966 | 31.1 C (88.0 F) |
| 1967 | 30.0 C (86.0 F) |
| 1968 | 30.0 C (86.0 F) |
| 1969 | 30.0 C (86.0 F) |
| 1970 | 30.6 C (87.1 F) |
| 1971 | 33.9 C (93.0 F) |
| 1972 | 31.7 C (89.1 F) |
| 1973 | 32.2 C (90.0 F) |
| 1974 | 31.7 C (89.1 F) |
| 1975 | 29.4 C (84.9 F) |
| 1976 | 31.7 C (89.1 F) |
| 1977 | 30.0 C (86.0 F) |
| 1978 | 33.3 C (91.9 F) |
| 1979 | 31.1 C (88.0 F) |
| 1980 | 32.2 C (90.0 F) |
| 1981 | 32.2 C (90.0 F) |
| 1982 | 35.6 C (96.1 F) |
| 1983 | 29.4 C (84.9 F) |
| 1984 | 30.0 C (86.0 F) |
| 1985 | 31.7 C (89.1 F) |
| 1986 | 31.1 C (88.0 F) |
| 1987 | 31.7 C (89.1 F) |
| 1988 | 31.1 C (88.0 F) |
| 1989 | 33.3 C (91.9 F) |
| 1990 | 33.9 C (93.0 F) |
| 1991 | 31.1 C (88.0 F) |
| 1992 | 31.7 C (89.1 F) |
| 1993 | 30.6 C (87.1 F) |
| 1994 | 32.8 C (91.0 F) |
| 1995 | 31.7 C (89.1 F) |
| 1996 | 31.1 C (88.0 F) |
| 1997 | 30.6 C (87.1 F) |
| 1998 | 32.8 C (91.0 F) |
| 1999 | 31.1 C (88.0 F) |
| 2000 | 31.7 C (89.1 F) |
| 2001 | 32.2 C (90.0 F) |
| 2002 | 32.2 C (90.0 F) |
| 2003 | 33.3 C (91.9 F) |
| 2004 | 31.1 C (88.0 F) |
| 2005 | 32.2 C (90.0 F) |
| 2006 | 31.1 C (88.0 F) |
| 2007 | 30.6 C (87.1 F) |
| 2008 | 31.1 C (88.0 F) |
| 2009 | 31.7 C (89.1 F) |
| 2010 | 32.2 C (90.0 F) |
| 2011 | 30.6 C (87.1 F) |
| 2012 | 32.2 C (90.0 F) |
| 2013 | 33.9 C (93.0 F) |
| 2014 | 30.6 C (87.1 F) |
| 2015 | 32.8 C (91.0 F) |
| 2016 | 32.8 C (91.0 F) |
| 2017 | 31.1 C (88.0 F) |
| 2018 | 32.2 C (90.0 F) |
| 2019 | 31.7 C (89.1 F) |
| 2020 | 32.2 C (90.0 F) |
| 2021 | 31.7 C (89.1 F) |
| 2022 | 31.7 C (89.1 F) |
| 2023 | 33.3 C (91.9 F) |
| 2024 | 32.2 C (90.0 F) |
| 2025 | 31.7 C (89.1 F) |
| 2026 | 33.3 C (91.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1950 | -18.3 C (-0.9 F) |
| 1951 | -27.8 C (-18.0 F) |
| 1952 | -23.3 C (-9.9 F) |
| 1953 | -22.8 C (-9.0 F) |
| 1954 | -23.3 C (-9.9 F) |
| 1955 | -25.6 C (-14.1 F) |
| 1956 | -21.1 C (-6.0 F) |
| 1957 | -24.4 C (-11.9 F) |
| 1958 | -22.2 C (-8.0 F) |
| 1959 | -21.7 C (-7.1 F) |
| 1960 | -26.1 C (-15.0 F) |
| 1961 | -28.3 C (-18.9 F) |
| 1962 | -27.2 C (-17.0 F) |
| 1963 | -31.7 C (-25.1 F) |
| 1964 | -25.6 C (-14.1 F) |
| 1965 | -25.6 C (-14.1 F) |
| 1966 | -24.4 C (-11.9 F) |
| 1967 | -23.9 C (-11.0 F) |
| 1968 | -24.4 C (-11.9 F) |
| 1969 | -22.2 C (-8.0 F) |
| 1970 | -22.8 C (-9.0 F) |
| 1971 | -31.1 C (-24.0 F) |
| 1972 | -26.1 C (-15.0 F) |
| 1973 | -22.2 C (-8.0 F) |
| 1974 | -26.1 C (-15.0 F) |
| 1975 | -28.9 C (-20.0 F) |
| 1976 | -25.0 C (-13.0 F) |
| 1977 | -24.4 C (-11.9 F) |
| 1978 | -25.6 C (-14.1 F) |
| 1979 | -28.9 C (-20.0 F) |
| 1980 | -19.4 C (-2.9 F) |
| 1981 | -22.8 C (-9.0 F) |
| 1982 | -24.4 C (-11.9 F) |
| 1983 | -23.3 C (-9.9 F) |
| 1984 | -26.7 C (-16.1 F) |
| 1985 | -30.0 C (-22.0 F) |
| 1986 | -20.6 C (-5.1 F) |
| 1987 | -22.2 C (-8.0 F) |
| 1988 | -26.7 C (-16.1 F) |
| 1989 | -28.3 C (-18.9 F) |
| 1990 | -27.8 C (-18.0 F) |
| 1991 | -24.4 C (-11.9 F) |
| 1992 | -28.9 C (-20.0 F) |
| 1993 | -21.7 C (-7.1 F) |
| 1994 | -23.9 C (-11.0 F) |
| 1995 | -18.9 C (-2.0 F) |
| 1996 | -25.0 C (-13.0 F) |
| 1997 | -20.6 C (-5.1 F) |
| 1998 | -20.6 C (-5.1 F) |
| 1999 | -18.3 C (-0.9 F) |
| 2000 | -17.2 C (1.0 F) |
| 2001 | -19.4 C (-2.9 F) |
| 2002 | -22.8 C (-9.0 F) |
| 2003 | -20.6 C (-5.1 F) |
| 2004 | -23.3 C (-9.9 F) |
| 2005 | -21.1 C (-6.0 F) |
| 2006 | -20.0 C (-4.0 F) |
| 2007 | -23.3 C (-9.9 F) |
| 2008 | -23.9 C (-11.0 F) |
| 2009 | -20.6 C (-5.1 F) |
| 2010 | -20.6 C (-5.1 F) |
| 2011 | -26.7 C (-16.1 F) |
| 2012 | -22.2 C (-8.0 F) |
| 2013 | -25.6 C (-14.1 F) |
| 2014 | -21.1 C (-6.0 F) |
| 2015 | -21.1 C (-6.0 F) |
| 2016 | -21.7 C (-7.1 F) |
| 2017 | -22.2 C (-8.0 F) |
| 2018 | -17.2 C (1.0 F) |
| 2019 | -21.1 C (-6.0 F) |
| 2020 | -21.1 C (-6.0 F) |
| 2021 | -22.8 C (-9.0 F) |
| 2022 | -20.6 C (-5.1 F) |
| 2023 | -20.6 C (-5.1 F) |
| 2024 | -17.2 C (1.0 F) |
| 2025 | -22.2 C (-8.0 F) |
| 2026 | -20.0 C (-4.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1950 | 5.6 mm (0.22 in) |
| 1951 | 20.1 mm (0.8 in) |
| 1952 | 33.3 mm (1.3 in) |
| 1953 | 19.8 mm (0.8 in) |
| 1954 | 36.8 mm (1.4 in) |
| 1955 | 49.5 mm (1.9 in) |
| 1956 | 12.7 mm (0.5 in) |
| 1957 | 24.9 mm (1.0 in) |
| 1958 | 15.2 mm (0.6 in) |
| 1959 | 38.1 mm (1.5 in) |
| 1960 | 15.0 mm (0.6 in) |
| 1961 | 18.5 mm (0.7 in) |
| 1962 | 12.2 mm (0.5 in) |
| 1963 | 18.0 mm (0.7 in) |
| 1964 | 13.7 mm (0.5 in) |
| 1965 | 26.7 mm (1.1 in) |
| 1966 | 28.4 mm (1.1 in) |
| 1967 | 32.3 mm (1.3 in) |
| 1968 | 46.5 mm (1.8 in) |
| 1969 | 28.4 mm (1.1 in) |
| 1970 | 19.3 mm (0.8 in) |
| 1971 | 33.3 mm (1.3 in) |
| 1972 | 16.5 mm (0.6 in) |
| 1973 | 10.9 mm (0.4 in) |
| 1974 | 19.1 mm (0.8 in) |
| 1975 | 29.2 mm (1.1 in) |
| 1976 | 34.3 mm (1.4 in) |
| 1977 | 29.2 mm (1.1 in) |
| 1978 | 23.9 mm (0.9 in) |
| 1979 | 20.3 mm (0.8 in) |
| 1980 | 18.5 mm (0.7 in) |
| 1981 | 19.1 mm (0.8 in) |
| 1982 | 36.8 mm (1.4 in) |
| 1983 | 16.5 mm (0.6 in) |
| 1984 | 23.4 mm (0.9 in) |
| 1985 | 53.3 mm (2.1 in) |
| 1986 | 22.1 mm (0.9 in) |
| 1987 | 15.7 mm (0.6 in) |
| 1988 | 20.3 mm (0.8 in) |
| 1989 | 35.3 mm (1.4 in) |
| 1990 | 31.0 mm (1.2 in) |
| 1991 | 26.9 mm (1.1 in) |
| 1992 | 33.5 mm (1.3 in) |
| 1993 | 29.7 mm (1.2 in) |
| 1994 | 31.8 mm (1.3 in) |
| 1995 | 29.0 mm (1.1 in) |
| 1996 | 30.7 mm (1.2 in) |
| 1997 | 33.0 mm (1.3 in) |
| 1998 | 29.7 mm (1.2 in) |
| 1999 | 29.2 mm (1.1 in) |
| 2000 | 18.3 mm (0.7 in) |
| 2001 | 23.9 mm (0.9 in) |
| 2002 | 22.1 mm (0.9 in) |
| 2003 | 48.5 mm (1.9 in) |
| 2004 | 49.8 mm (2.0 in) |
| 2005 | 22.4 mm (0.9 in) |
| 2006 | 31.0 mm (1.2 in) |
| 2007 | 71.1 mm (2.8 in) |
| 2008 | 23.6 mm (0.9 in) |
| 2009 | 19.1 mm (0.8 in) |
| 2010 | 29.2 mm (1.1 in) |
| 2011 | 25.9 mm (1.0 in) |
| 2012 | 22.9 mm (0.9 in) |
| 2013 | 28.4 mm (1.1 in) |
| 2014 | 25.9 mm (1.0 in) |
| 2015 | 21.6 mm (0.9 in) |
| 2016 | 21.6 mm (0.9 in) |
| 2017 | 36.1 mm (1.4 in) |
| 2018 | 17.3 mm (0.7 in) |
| 2019 | 43.9 mm (1.7 in) |
| 2020 | 28.7 mm (1.1 in) |
| 2021 | 26.2 mm (1.0 in) |
| 2022 | 35.1 mm (1.4 in) |
| 2023 | 16.8 mm (0.7 in) |
| 2024 | 50.8 mm (2.0 in) |
| 2025 | 66.0 mm (2.6 in) |
| 2026 | 19.8 mm (0.8 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1950 | 16.3 mm (0.6 in) |
| 1951 | 29.6 mm (1.2 in) |
| 1952 | 45.3 mm (1.8 in) |
| 1953 | 30.5 mm (1.2 in) |
| 1954 | 41.1 mm (1.6 in) |
| 1955 | 56.8 mm (2.2 in) |
| 1956 | 23.4 mm (0.9 in) |
| 1957 | 53.6 mm (2.1 in) |
| 1958 | 21.6 mm (0.9 in) |
| 1959 | 63.2 mm (2.5 in) |
| 1960 | 31.3 mm (1.2 in) |
| 1961 | 26.4 mm (1.0 in) |
| 1962 | 20.0 mm (0.8 in) |
| 1963 | 30.4 mm (1.2 in) |
| 1964 | 27.1 mm (1.1 in) |
| 1965 | 61.9 mm (2.4 in) |
| 1966 | 32.4 mm (1.3 in) |
| 1967 | 52.7 mm (2.1 in) |
| 1968 | 88.1 mm (3.5 in) |
| 1969 | 59.6 mm (2.3 in) |
| 1970 | 40.3 mm (1.6 in) |
| 1971 | 75.9 mm (3.0 in) |
| 1972 | 19.0 mm (0.7 in) |
| 1973 | 19.1 mm (0.8 in) |
| 1974 | 21.1 mm (0.8 in) |
| 1975 | 50.8 mm (2.0 in) |
| 1976 | 35.6 mm (1.4 in) |
| 1977 | 46.2 mm (1.8 in) |
| 1978 | 32.5 mm (1.3 in) |
| 1979 | 25.3 mm (1.0 in) |
| 1980 | 27.1 mm (1.1 in) |
| 1981 | 45.0 mm (1.8 in) |
| 1982 | 59.7 mm (2.4 in) |
| 1983 | 36.1 mm (1.4 in) |
| 1984 | 32.8 mm (1.3 in) |
| 1985 | 53.3 mm (2.1 in) |
| 1986 | 27.9 mm (1.1 in) |
| 1987 | 19.9 mm (0.8 in) |
| 1988 | 35.5 mm (1.4 in) |
| 1989 | 75.9 mm (3.0 in) |
| 1990 | 34.3 mm (1.4 in) |
| 1991 | 44.5 mm (1.8 in) |
| 1992 | 50.6 mm (2.0 in) |
| 1993 | 55.8 mm (2.2 in) |
| 1994 | 39.9 mm (1.6 in) |
| 1995 | 47.8 mm (1.9 in) |
| 1996 | 37.3 mm (1.5 in) |
| 1997 | 60.0 mm (2.4 in) |
| 1998 | 42.9 mm (1.7 in) |
| 1999 | 79.8 mm (3.1 in) |
| 2000 | 24.7 mm (1.0 in) |
| 2001 | 26.7 mm (1.1 in) |
| 2002 | 22.1 mm (0.9 in) |
| 2003 | 60.0 mm (2.4 in) |
| 2004 | 50.3 mm (2.0 in) |
| 2005 | 37.7 mm (1.5 in) |
| 2006 | 47.0 mm (1.9 in) |
| 2007 | 74.4 mm (2.9 in) |
| 2008 | 38.6 mm (1.5 in) |
| 2009 | 37.1 mm (1.5 in) |
| 2010 | 31.8 mm (1.3 in) |
| 2011 | 29.3 mm (1.2 in) |
| 2012 | 27.5 mm (1.1 in) |
| 2013 | 33.5 mm (1.3 in) |
| 2014 | 50.8 mm (2.0 in) |
| 2015 | 33.4 mm (1.3 in) |
| 2016 | 47.0 mm (1.9 in) |
| 2017 | 57.2 mm (2.3 in) |
| 2018 | 17.3 mm (0.7 in) |
| 2019 | 69.8 mm (2.7 in) |
| 2020 | 36.1 mm (1.4 in) |
| 2021 | 49.3 mm (1.9 in) |
| 2022 | 67.9 mm (2.7 in) |
| 2023 | 33.3 mm (1.3 in) |
| 2024 | 73.5 mm (2.9 in) |
| 2025 | 89.9 mm (3.5 in) |
| 2026 | 13.7 mm (0.5 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1950 | 26 days |
| 1951 | 58 days |
| 1952 | 54 days |
| 1953 | 50 days |
| 1954 | 39 days |
| 1955 | 49 days |
| 1956 | 33 days |
| 1957 | 41 days |
| 1958 | 30 days |
| 1959 | 29 days |
| 1960 | 28 days |
| 1961 | 26 days |
| 1962 | 29 days |
| 1963 | 71 days |
| 1964 | 24 days |
| 1965 | 33 days |
| 1966 | 36 days |
| 1967 | 42 days |
| 1968 | 51 days |
| 1969 | 32 days |
| 1970 | 70 days |
| 1971 | 47 days |
| 1972 | 57 days |
| 1973 | 39 days |
| 1974 | 55 days |
| 1975 | 55 days |
| 1976 | 44 days |
| 1977 | 30 days |
| 1978 | 50 days |
| 1979 | 36 days |
| 1980 | 65 days |
| 1981 | 51 days |
| 1982 | 40 days |
| 1983 | 37 days |
| 1984 | 32 days |
| 1985 | 33 days |
| 1986 | 37 days |
| 1987 | 25 days |
| 1988 | 22 days |
| 1989 | 45 days |
| 1990 | 38 days |
| 1991 | 45 days |
| 1992 | 35 days |
| 1993 | 22 days |
| 1994 | 25 days |
| 1995 | 30 days |
| 1996 | 38 days |
| 1997 | 23 days |
| 1998 | 30 days |
| 1999 | 34 days |
| 2000 | 28 days |
| 2001 | 24 days |
| 2002 | 38 days |
| 2003 | 32 days |
| 2004 | 52 days |
| 2005 | 28 days |
| 2006 | 44 days |
| 2007 | 32 days |
| 2008 | 31 days |
| 2009 | 45 days |
| 2010 | 26 days |
| 2011 | 44 days |
| 2012 | 28 days |
| 2013 | 38 days |
| 2014 | 42 days |
| 2015 | 28 days |
| 2016 | 49 days |
| 2017 | 35 days |
| 2018 | 43 days |
| 2019 | 38 days |
| 2020 | 45 days |
| 2021 | 40 days |
| 2022 | 45 days |
| 2023 | 29 days |
| 2024 | 29 days |
| 2025 | 27 days |
| 2026 | 35 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
68 years with a frostAcross 68 years with a frost, the median last spring frost at Great Sand Dunes Np & Preserve falls on 28 May and the median first autumn frost on 29 September, which leaves a median of 129 days between them.
In 1994 to 2025 the median growing season was 134 days. That is 25 days more than in 1951 to 1983.
Fitted over all years, the growing season changes by +3.2 days per decade at this station.
| Measure | Median, all years | Earliest period (1951 to 1983) | Recent period (1994 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 28 May | 4 June | 25 May | 10 days earlier | -1.5 days per decade |
| First autumn frost | 29 September | 24 September | 5 October | 11 days later | +1.7 days per decade |
| Growing days | 129 days | 109 days | 134 days | 25 days more | +3.2 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
73 years, 1951 to 2025A day with at least 26.1 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 69.1 mm (2.7 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 26.1 mm (1.0 in) | |
| 5 years | 36.3 mm (1.4 in) | |
| 10 years | 43.6 mm (1.7 in) | |
| 25 years | 53.4 mm (2.1 in) | |
| 50 years | 61.1 mm (2.4 in) | |
| 100 years | 69.1 mm (2.7 in) | Longer than the 73 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, 73 years of values from 1951 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: 71.1 mm (2.8 in) in 2007; 66.0 mm (2.6 in) in 2025; 53.3 mm (2.1 in) in 1985.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2010 to 2025 against 1961 to 1990Over 2010 to 2025, Great Sand Dunes Np & Preserve had a mean temperature of 7.5 C (45.4 F) and 295.9 mm (11.6 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Northdale (United States, 308 km away), Ignacio 1 N (United States, 198 km away) and Monticello 2E (United States, 334 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Northdale | United States | 308 km (191 mi) | 7.4 C (45.2 F) | 311.4 mm (12.3 in) | 0.56 |
| Ignacio 1 N | United States | 198 km (123 mi) | 7.5 C (45.6 F) | 367.0 mm (14.4 in) | 0.65 |
| Monticello 2E | United States | 334 km (208 mi) | 7.6 C (45.7 F) | 390.5 mm (15.4 in) | 0.68 |
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).