Great Salt Plains Dam Weather Records (USC00343740)
Record envelope, standing records and threshold days for Great Salt Plains Dam (USC00343740), Oklahoma, United States, with 81 years of record.
Key Facts for Great Salt Plains Dam
- Great Salt Plains Dam (USC00343740) is a weather station in Oklahoma, United States at 36.74 latitude and -98.13 longitude, 366 m (1,200 ft) above sea level.
- The station reports from 1946 to 2026, 81 years of record.
- 1,464 records set at Great Salt Plains Dam still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Great Salt Plains Dam set a monthly record daily precipitation of 105.9 mm (4.2 in) on 2 June 2026.
About the Station
- Location: Oklahoma, United States, 36.74 latitude, -98.13 longitude.
- Elevation: 366 m (1,200 ft).
- Period of record: 1946 to 2026, 81 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 28.3 C (82.9 F) | -25.0 C (-13.0 F) | n/a | n/a |
| Feb | 33.9 C (93.0 F) | -28.3 C (-18.9 F) | n/a | n/a |
| Mar | 33.3 C (91.9 F) | -19.4 C (-2.9 F) | n/a | n/a |
| Apr | 37.2 C (99.0 F) | -6.1 C (21.0 F) | n/a | n/a |
| May | 40.6 C (105.1 F) | -0.6 C (30.9 F) | n/a | n/a |
| Jun | 45.6 C (114.1 F) | 5.0 C (41.0 F) | n/a | n/a |
| Jul | 45.6 C (114.1 F) | 11.1 C (52.0 F) | n/a | n/a |
| Aug | 43.9 C (111.0 F) | 9.4 C (48.9 F) | n/a | n/a |
| Sep | 43.3 C (109.9 F) | 1.1 C (34.0 F) | n/a | n/a |
| Oct | 38.3 C (100.9 F) | -10.0 C (14.0 F) | n/a | n/a |
| Nov | 32.2 C (90.0 F) | -12.8 C (9.0 F) | n/a | n/a |
| Dec | 27.8 C (82.0 F) | -24.4 C (-11.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1946 | 22 |
| 1947 | 28 |
| 1948 | 29 |
| 1949 | 17 |
| 1950 | 33 |
| 1951 | 33 |
| 1952 | 38 |
| 1953 | 58 |
| 1954 | 51 |
| 1955 | 27 |
| 1956 | 45 |
| 1957 | 14 |
| 1958 | 15 |
| 1959 | 25 |
| 1960 | 27 |
| 1961 | 16 |
| 1962 | 37 |
| 1963 | 30 |
| 1964 | 18 |
| 1965 | 20 |
| 1966 | 26 |
| 1967 | 32 |
| 1968 | 28 |
| 1969 | 12 |
| 1970 | 28 |
| 1971 | 12 |
| 1972 | 20 |
| 1973 | 14 |
| 1974 | 11 |
| 1975 | 7 |
| 1976 | 17 |
| 1977 | 10 |
| 1978 | 33 |
| 1979 | 27 |
| 1980 | 19 |
| 1981 | 23 |
| 1982 | 13 |
| 1983 | 38 |
| 1984 | 22 |
| 1985 | 17 |
| 1986 | 19 |
| 1987 | 11 |
| 1988 | 15 |
| 1989 | 34 |
| 1990 | 44 |
| 1991 | 30 |
| 1992 | 15 |
| 1993 | 19 |
| 1994 | 20 |
| 1995 | 18 |
| 1996 | 16 |
| 1997 | 7 |
| 1998 | 20 |
| 1999 | 17 |
| 2000 | 20 |
| 2001 | 13 |
| 2002 | 14 |
| 2003 | 14 |
| 2004 | 16 |
| 2005 | 12 |
| 2006 | 32 |
| 2007 | 24 |
| 2008 | 14 |
| 2009 | 16 |
| 2010 | 5 |
| 2011 | 7 |
All-Time Record Progression
7 new records| Date | Kind | Detail |
|---|---|---|
| 1983-12-20 | Record low maximum temperature | Record low maximum temperature -15.0 C (5.0 F) |
| 1983-12-23 | Record low maximum temperature | Record low maximum temperature -17.2 C (1.0 F) |
| 1988-03-18 | Record snow depth | Record snow depth 40.6 cm (16.0 in) |
| 1989-08-14 | Record daily precipitation | Record daily precipitation 122.2 mm (4.8 in) |
| 1995-08-03 | Record daily precipitation | Record daily precipitation 171.2 mm (6.7 in) |
| 2008-09-12 | Record daily precipitation | Record daily precipitation 215.9 mm (8.5 in) |
| 2011-02-10 | Record low minimum temperature | Record low minimum temperature -28.3 C (-18.9 F) |
Wettest Day of Each Month
Sep: 215.9 mm (8.5 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 90.7 mm (3.6 in) | 6 January 2005 |
| Feb | 70.1 mm (2.8 in) | 3 February 2012 |
| Mar | 76.2 mm (3.0 in) | 3 March 1988 |
| Apr | 115.3 mm (4.5 in) | 18 April 1970 |
| May | 122.7 mm (4.8 in) | 21 May 2019 |
| Jun | 105.9 mm (4.2 in) | 2 June 2026 |
| Jul | 118.4 mm (4.7 in) | 29 July 1950 |
| Aug | 171.2 mm (6.7 in) | 3 August 1995 |
| Sep | 215.9 mm (8.5 in) | 12 September 2008 |
| Oct | 141.0 mm (5.6 in) | 3 October 2002 |
| Nov | 108.5 mm (4.3 in) | 1 November 1998 |
| Dec | 73.7 mm (2.9 in) | 4 December 1947 |
Period of Record Coverage
1946 to 2011| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1946 | 277 | 76% | No |
| 1947 | 355 | 97% | Yes |
| 1948 | 364 | 99% | Yes |
| 1949 | 356 | 98% | Yes |
| 1950 | 364 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 363 | 99% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 364 | 100% | Yes |
| 1956 | 365 | 100% | Yes |
| 1957 | 364 | 100% | Yes |
| 1958 | 364 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 364 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 364 | 100% | Yes |
| 1970 | 359 | 98% | Yes |
| 1971 | 255 | 70% | No |
| 1972 | 250 | 68% | No |
| 1973 | 250 | 68% | No |
| 1974 | 252 | 69% | No |
| 1975 | 255 | 70% | No |
| 1976 | 251 | 69% | No |
| 1977 | 273 | 75% | No |
| 1978 | 347 | 95% | Yes |
| 1979 | 325 | 89% | No |
| 1980 | 355 | 97% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 357 | 98% | Yes |
| 1983 | 352 | 96% | Yes |
| 1984 | 357 | 98% | Yes |
| 1985 | 324 | 89% | No |
| 1986 | 350 | 96% | Yes |
| 1987 | 363 | 99% | Yes |
| 1988 | 364 | 99% | Yes |
| 1989 | 363 | 99% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 364 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 357 | 98% | Yes |
| 1994 | 357 | 98% | Yes |
| 1995 | 267 | 73% | No |
| 1996 | 261 | 71% | No |
| 1997 | 139 | 38% | No |
| 1998 | 274 | 75% | No |
| 1999 | 365 | 100% | Yes |
| 2000 | 358 | 98% | Yes |
| 2001 | 352 | 96% | Yes |
| 2002 | 354 | 97% | Yes |
| 2003 | 335 | 92% | Yes |
| 2004 | 362 | 99% | Yes |
| 2005 | 360 | 99% | Yes |
| 2006 | 360 | 99% | Yes |
| 2007 | 360 | 99% | Yes |
| 2008 | 337 | 92% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 332 | 91% | Yes |
| 2011 | 97 | 27% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 2 June 2026 | Great Salt Plains Dam, US | monthly rain | 105.9 mm (4.2 in) | 9.9 mm (0.39 in) | 68 years | 44 of 100 (Notable) |
| 6 March 2026 | Great Salt Plains Dam, US | daily rain | 62.5 mm (2.5 in) | 48.0 mm (1.9 in) | 37 years | 56 of 100 (Notable) |
| 14 February 2026 | Great Salt Plains Dam, US | daily rain | 17.8 mm (0.7 in) | 5.6 mm (0.22 in) | 76 years | 20 of 100 (Routine) |
| 28 January 2026 | Great Salt Plains Dam, US | daily snow depth (Tie) | 12.7 cm (5.0 in) | tie | 76 years | 7 of 100 (Routine) |
| 27 January 2026 | Great Salt Plains Dam, US | daily snow depth | 15.2 cm (6.0 in) | 7.6 cm (3.0 in) | 26 years | 33 of 100 (Routine) |
| 26 January 2026 | Great Salt Plains Dam, US | daily snow depth | 20.3 cm (8.0 in) | 15.2 cm (6.0 in) | 76 years | 68 of 100 (Major) |
| 25 January 2026 | Great Salt Plains Dam, US | daily snow depth | 20.3 cm (8.0 in) | 15.2 cm (6.0 in) | 19 years | 50 of 100 (Notable) |
| 25 January 2026 | Great Salt Plains Dam, US | monthly snowfall | 19.8 cm (7.8 in) | 4.6 cm (1.8 in) | 38 years | 41 of 100 (Notable) |
| 25 January 2026 | Great Salt Plains Dam, US | daily rain | 32.5 mm (1.3 in) | 11.2 mm (0.4 in) | 4 years | 19 of 100 (Routine) |
| 24 January 2026 | Great Salt Plains Dam, US | daily rain | 9.7 mm (0.38 in) | 7.7 mm (0.30 in) | 60 years | 20 of 100 (Routine) |
| 21 November 2025 | Great Salt Plains Dam, US | daily rain | 73.7 mm (2.9 in) | 39.4 mm (1.6 in) | 46 years | 48 of 100 (Notable) |
| 25 October 2025 | Great Salt Plains Dam, US | daily rain | 49.5 mm (1.9 in) | 28.9 mm (1.1 in) | 2 years | 23 of 100 (Routine) |
| 28 August 2025 | Great Salt Plains Dam, US | daily rain | 52.3 mm (2.1 in) | 10.4 mm (0.4 in) | 68 years | 33 of 100 (Routine) |
| 15 June 2025 | Great Salt Plains Dam, US | daily rain | 40.1 mm (1.6 in) | 9.4 mm (0.37 in) | 71 years | 35 of 100 (Notable) |
| 10 January 2025 | Great Salt Plains Dam, US | daily rain | 71.1 mm (2.8 in) | 42.7 mm (1.7 in) | 76 years | 70 of 100 (Major) |
| 18 November 2024 | Great Salt Plains Dam, US | daily rain | 36.1 mm (1.4 in) | 23.1 mm (0.9 in) | 20 years | 29 of 100 (Routine) |
| 8 November 2024 | Great Salt Plains Dam, US | daily rain | 54.6 mm (2.1 in) | 39.9 mm (1.6 in) | 47 years | 49 of 100 (Notable) |
| 3 November 2024 | Great Salt Plains Dam, US | daily rain | 59.7 mm (2.4 in) | 45.2 mm (1.8 in) | 3 years | 39 of 100 (Notable) |
| 22 September 2024 | Great Salt Plains Dam, US | daily rain | 31.2 mm (1.2 in) | 24.1 mm (0.9 in) | 30 years | 28 of 100 (Routine) |
| 30 June 2024 | Great Salt Plains Dam, US | daily rain | 91.9 mm (3.6 in) | 37.8 mm (1.5 in) | 73 years | 54 of 100 (Notable) |
Climate Trend
49 complete years, 1947 to 2009| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1947 | 14.8 C | -0.49 C |
| 1948 | 14.4 C | -0.85 C |
| 1949 | 14.3 C | -0.95 C |
| 1950 | 15.1 C | -0.17 C |
| 1951 | 15.0 C | -0.28 C |
| 1952 | 16.1 C | +0.83 C |
| 1953 | 16.9 C | +1.61 C |
| 1954 | 17.9 C | +2.58 C |
| 1955 | 16.1 C | +0.82 C |
| 1956 | 17.1 C | +1.79 C |
| 1957 | 14.9 C | -0.41 C |
| 1958 | 15.0 C | -0.23 C |
| 1959 | 15.3 C | -0.01 C |
| 1960 | 14.8 C | -0.45 C |
| 1961 | 15.0 C | -0.24 C |
| 1962 | 15.8 C | +0.56 C |
| 1963 | 16.7 C | +1.40 C |
| 1964 | 16.0 C | +0.68 C |
| 1965 | 16.1 C | +0.86 C |
| 1966 | 15.2 C | -0.09 C |
| 1967 | 15.7 C | +0.43 C |
| 1968 | 15.1 C | -0.22 C |
| 1969 | 15.2 C | -0.06 C |
| 1970 | 15.6 C | +0.37 C |
| 1978 | 13.8 C | -1.50 C |
| 1980 | 15.2 C | -0.10 C |
| 1981 | 15.6 C | +0.37 C |
| 1982 | 13.9 C | -1.39 C |
| 1983 | 13.6 C | -1.70 C |
| 1984 | 14.3 C | -0.97 C |
| 1986 | 15.7 C | +0.40 C |
| 1987 | 15.3 C | +0.05 C |
| 1988 | 14.8 C | -0.46 C |
| 1989 | 14.2 C | -1.05 C |
| 1990 | 16.3 C | +1.02 C |
| 1991 | 15.8 C | +0.56 C |
| 1992 | 14.7 C | -0.57 C |
| 1993 | 13.6 C | -1.69 C |
| 1994 | 14.8 C | -0.47 C |
| 1996 | 14.2 C | -1.10 C |
| 1999 | 15.6 C | +0.33 C |
| 2000 | 15.2 C | -0.04 C |
| 2001 | 15.9 C | +0.61 C |
| 2002 | 14.7 C | -0.54 C |
| 2004 | 15.2 C | -0.04 C |
| 2005 | 15.5 C | +0.24 C |
| 2006 | 16.6 C | +1.32 C |
| 2007 | 15.1 C | -0.22 C |
| 2009 | 14.7 C | -0.55 C |
The fitted trend in annual mean temperature here over 1947 to 2009 is -0.10 C (-0.23 to 0.03) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.2 F (-0.4 to 0.1) per decade. The slope is a straight line fitted to 49 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.10 C (-0.23 to 0.03) per decade | -0.2 F (-0.4 to 0.1) per decade | 1947 to 2009 | 49 | Not clearly different from zero |
| Mean daily maximum | -0.16 C (-0.34 to 0.01) per decade | -0.30 F (-0.61 to 0.02) per decade | 1947 to 2009 | 49 | Not clearly different from zero |
| Mean daily minimum | -0.04 C (-0.15 to 0.08) per decade | -0.1 F (-0.3 to 0.1) per decade | 1947 to 2009 | 49 | 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
1946 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 45.6 C (114.1 F) | 1953 | 41.7 C (107.1 F) | 66 |
| Coldest night (TNn) | -28.3 C (-18.9 F) | 2011 | -17.8 C (0.0 F) | 66 |
| Wettest day (Rx1day) | 215.9 mm (8.5 in) | 2008 | 69.1 mm (2.7 in) | 81 |
| Wettest five days (Rx5day) | 306.6 mm (12.1 in) | 1995 | 96.8 mm (3.8 in) | 81 |
| Longest dry spell (CDD) | 72 days | 1996 | 37 days | 81 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1946 | 43.9 C (111.0 F) |
| 1947 | 43.3 C (109.9 F) |
| 1948 | 42.2 C (108.0 F) |
| 1949 | 39.4 C (102.9 F) |
| 1950 | 40.6 C (105.1 F) |
| 1951 | 42.2 C (108.0 F) |
| 1952 | 42.2 C (108.0 F) |
| 1953 | 45.6 C (114.1 F) |
| 1954 | 45.6 C (114.1 F) |
| 1955 | 40.0 C (104.0 F) |
| 1956 | 42.8 C (109.0 F) |
| 1957 | 40.0 C (104.0 F) |
| 1958 | 40.6 C (105.1 F) |
| 1959 | 41.1 C (106.0 F) |
| 1960 | 40.0 C (104.0 F) |
| 1961 | 40.6 C (105.1 F) |
| 1962 | 41.7 C (107.1 F) |
| 1963 | 43.9 C (111.0 F) |
| 1964 | 43.9 C (111.0 F) |
| 1965 | 41.1 C (106.0 F) |
| 1966 | 41.1 C (106.0 F) |
| 1967 | 41.1 C (106.0 F) |
| 1968 | 42.2 C (108.0 F) |
| 1969 | 42.8 C (109.0 F) |
| 1970 | 42.2 C (108.0 F) |
| 1971 | 41.7 C (107.1 F) |
| 1972 | 38.3 C (100.9 F) |
| 1973 | 41.7 C (107.1 F) |
| 1974 | 41.7 C (107.1 F) |
| 1975 | 38.3 C (100.9 F) |
| 1976 | 41.7 C (107.1 F) |
| 1977 | 41.1 C (106.0 F) |
| 1978 | 41.7 C (107.1 F) |
| 1979 | 41.1 C (106.0 F) |
| 1980 | 42.8 C (109.0 F) |
| 1981 | 43.9 C (111.0 F) |
| 1982 | 41.7 C (107.1 F) |
| 1983 | 42.2 C (108.0 F) |
| 1984 | 42.8 C (109.0 F) |
| 1985 | 41.7 C (107.1 F) |
| 1986 | 45.6 C (114.1 F) |
| 1987 | 41.1 C (106.0 F) |
| 1988 | 42.2 C (108.0 F) |
| 1989 | 41.7 C (107.1 F) |
| 1990 | 42.8 C (109.0 F) |
| 1991 | 42.8 C (109.0 F) |
| 1992 | 38.3 C (100.9 F) |
| 1993 | 40.0 C (104.0 F) |
| 1994 | 41.7 C (107.1 F) |
| 1995 | 42.2 C (108.0 F) |
| 1996 | 43.3 C (109.9 F) |
| 1997 | 35.6 C (96.1 F) |
| 1998 | 42.8 C (109.0 F) |
| 1999 | 41.7 C (107.1 F) |
| 2000 | 42.8 C (109.0 F) |
| 2001 | 43.3 C (109.9 F) |
| 2002 | 40.0 C (104.0 F) |
| 2003 | 42.2 C (108.0 F) |
| 2004 | 39.4 C (102.9 F) |
| 2005 | 39.4 C (102.9 F) |
| 2006 | 42.8 C (109.0 F) |
| 2007 | 40.6 C (105.1 F) |
| 2008 | 42.2 C (108.0 F) |
| 2009 | 45.0 C (113.0 F) |
| 2010 | 42.8 C (109.0 F) |
| 2011 | 33.3 C (91.9 F) |
| 2012 | n/a |
| 2013 | n/a |
| 2014 | n/a |
| 2015 | n/a |
| 2016 | n/a |
| 2017 | n/a |
| 2018 | n/a |
| 2019 | n/a |
| 2020 | n/a |
| 2021 | n/a |
| 2022 | n/a |
| 2023 | n/a |
| 2024 | n/a |
| 2025 | n/a |
| 2026 | n/a |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1946 | -15.0 C (5.0 F) |
| 1947 | -25.0 C (-13.0 F) |
| 1948 | -19.4 C (-2.9 F) |
| 1949 | -18.9 C (-2.0 F) |
| 1950 | -16.7 C (1.9 F) |
| 1951 | -21.1 C (-6.0 F) |
| 1952 | -13.3 C (8.1 F) |
| 1953 | -13.3 C (8.1 F) |
| 1954 | -15.6 C (3.9 F) |
| 1955 | -12.8 C (9.0 F) |
| 1956 | -12.8 C (9.0 F) |
| 1957 | -14.4 C (6.1 F) |
| 1958 | -17.8 C (0.0 F) |
| 1959 | -22.8 C (-9.0 F) |
| 1960 | -18.3 C (-0.9 F) |
| 1961 | -18.3 C (-0.9 F) |
| 1962 | -20.0 C (-4.0 F) |
| 1963 | -21.7 C (-7.1 F) |
| 1964 | -17.8 C (0.0 F) |
| 1965 | -16.1 C (3.0 F) |
| 1966 | -18.9 C (-2.0 F) |
| 1967 | -15.6 C (3.9 F) |
| 1968 | -19.4 C (-2.9 F) |
| 1969 | -14.4 C (6.1 F) |
| 1970 | -17.8 C (0.0 F) |
| 1971 | -18.3 C (-0.9 F) |
| 1972 | -21.1 C (-6.0 F) |
| 1973 | -19.4 C (-2.9 F) |
| 1974 | -17.8 C (0.0 F) |
| 1975 | -12.8 C (9.0 F) |
| 1976 | -19.4 C (-2.9 F) |
| 1977 | -18.3 C (-0.9 F) |
| 1978 | -18.9 C (-2.0 F) |
| 1979 | -22.8 C (-9.0 F) |
| 1980 | -15.0 C (5.0 F) |
| 1981 | -20.6 C (-5.1 F) |
| 1982 | -21.7 C (-7.1 F) |
| 1983 | -20.6 C (-5.1 F) |
| 1984 | -22.2 C (-8.0 F) |
| 1985 | -20.6 C (-5.1 F) |
| 1986 | -15.0 C (5.0 F) |
| 1987 | -15.0 C (5.0 F) |
| 1988 | -23.3 C (-9.9 F) |
| 1989 | -24.4 C (-11.9 F) |
| 1990 | -18.3 C (-0.9 F) |
| 1991 | -17.8 C (0.0 F) |
| 1992 | -10.6 C (12.9 F) |
| 1993 | -16.1 C (3.0 F) |
| 1994 | -16.7 C (1.9 F) |
| 1995 | -13.9 C (7.0 F) |
| 1996 | -21.1 C (-6.0 F) |
| 1997 | -17.8 C (0.0 F) |
| 1998 | -16.1 C (3.0 F) |
| 1999 | -13.9 C (7.0 F) |
| 2000 | -16.1 C (3.0 F) |
| 2001 | -12.2 C (10.0 F) |
| 2002 | -16.7 C (1.9 F) |
| 2003 | -16.7 C (1.9 F) |
| 2004 | -16.1 C (3.0 F) |
| 2005 | -16.7 C (1.9 F) |
| 2006 | -13.9 C (7.0 F) |
| 2007 | -15.0 C (5.0 F) |
| 2008 | -13.3 C (8.1 F) |
| 2009 | -17.2 C (1.0 F) |
| 2010 | -17.2 C (1.0 F) |
| 2011 | -28.3 C (-18.9 F) |
| 2012 | n/a |
| 2013 | n/a |
| 2014 | n/a |
| 2015 | n/a |
| 2016 | n/a |
| 2017 | n/a |
| 2018 | n/a |
| 2019 | n/a |
| 2020 | n/a |
| 2021 | n/a |
| 2022 | n/a |
| 2023 | n/a |
| 2024 | n/a |
| 2025 | n/a |
| 2026 | n/a |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1946 | 39.9 mm (1.6 in) |
| 1947 | 82.6 mm (3.3 in) |
| 1948 | 73.7 mm (2.9 in) |
| 1949 | 50.8 mm (2.0 in) |
| 1950 | 118.4 mm (4.7 in) |
| 1951 | 74.7 mm (2.9 in) |
| 1952 | 40.1 mm (1.6 in) |
| 1953 | 69.1 mm (2.7 in) |
| 1954 | 43.9 mm (1.7 in) |
| 1955 | 44.7 mm (1.8 in) |
| 1956 | 62.5 mm (2.5 in) |
| 1957 | 96.0 mm (3.8 in) |
| 1958 | 68.6 mm (2.7 in) |
| 1959 | 66.0 mm (2.6 in) |
| 1960 | 85.6 mm (3.4 in) |
| 1961 | 73.7 mm (2.9 in) |
| 1962 | 50.8 mm (2.0 in) |
| 1963 | 36.8 mm (1.4 in) |
| 1964 | 88.1 mm (3.5 in) |
| 1965 | 49.5 mm (1.9 in) |
| 1966 | 59.7 mm (2.4 in) |
| 1967 | 85.6 mm (3.4 in) |
| 1968 | 69.9 mm (2.8 in) |
| 1969 | 59.7 mm (2.4 in) |
| 1970 | 115.3 mm (4.5 in) |
| 1971 | 58.2 mm (2.3 in) |
| 1972 | 56.4 mm (2.2 in) |
| 1973 | 106.7 mm (4.2 in) |
| 1974 | 83.8 mm (3.3 in) |
| 1975 | 51.8 mm (2.0 in) |
| 1976 | 61.0 mm (2.4 in) |
| 1977 | 69.1 mm (2.7 in) |
| 1978 | 41.4 mm (1.6 in) |
| 1979 | 116.8 mm (4.6 in) |
| 1980 | 54.4 mm (2.1 in) |
| 1981 | 46.7 mm (1.8 in) |
| 1982 | 77.2 mm (3.0 in) |
| 1983 | 61.0 mm (2.4 in) |
| 1984 | 46.5 mm (1.8 in) |
| 1985 | 49.5 mm (1.9 in) |
| 1986 | 97.3 mm (3.8 in) |
| 1987 | 102.1 mm (4.0 in) |
| 1988 | 76.2 mm (3.0 in) |
| 1989 | 122.2 mm (4.8 in) |
| 1990 | 43.7 mm (1.7 in) |
| 1991 | 56.6 mm (2.2 in) |
| 1992 | 93.5 mm (3.7 in) |
| 1993 | 90.9 mm (3.6 in) |
| 1994 | 66.8 mm (2.6 in) |
| 1995 | 171.2 mm (6.7 in) |
| 1996 | 41.1 mm (1.6 in) |
| 1997 | 50.5 mm (2.0 in) |
| 1998 | 113.5 mm (4.5 in) |
| 1999 | 75.7 mm (3.0 in) |
| 2000 | 63.0 mm (2.5 in) |
| 2001 | 55.9 mm (2.2 in) |
| 2002 | 141.0 mm (5.6 in) |
| 2003 | 88.9 mm (3.5 in) |
| 2004 | 80.5 mm (3.2 in) |
| 2005 | 90.7 mm (3.6 in) |
| 2006 | 61.0 mm (2.4 in) |
| 2007 | 57.9 mm (2.3 in) |
| 2008 | 215.9 mm (8.5 in) |
| 2009 | 55.9 mm (2.2 in) |
| 2010 | 78.5 mm (3.1 in) |
| 2011 | 57.7 mm (2.3 in) |
| 2012 | 70.1 mm (2.8 in) |
| 2013 | 57.9 mm (2.3 in) |
| 2014 | 38.1 mm (1.5 in) |
| 2015 | 117.1 mm (4.6 in) |
| 2016 | 103.4 mm (4.1 in) |
| 2017 | 74.4 mm (2.9 in) |
| 2018 | 91.9 mm (3.6 in) |
| 2019 | 122.7 mm (4.8 in) |
| 2020 | 72.1 mm (2.8 in) |
| 2021 | 51.3 mm (2.0 in) |
| 2022 | 64.3 mm (2.5 in) |
| 2023 | 46.2 mm (1.8 in) |
| 2024 | 91.9 mm (3.6 in) |
| 2025 | 73.7 mm (2.9 in) |
| 2026 | 105.9 mm (4.2 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1946 | 71.6 mm (2.8 in) |
| 1947 | 118.2 mm (4.7 in) |
| 1948 | 97.1 mm (3.8 in) |
| 1949 | 79.0 mm (3.1 in) |
| 1950 | 219.6 mm (8.6 in) |
| 1951 | 135.6 mm (5.3 in) |
| 1952 | 68.8 mm (2.7 in) |
| 1953 | 94.9 mm (3.7 in) |
| 1954 | 58.2 mm (2.3 in) |
| 1955 | 100.8 mm (4.0 in) |
| 1956 | 64.8 mm (2.6 in) |
| 1957 | 161.1 mm (6.3 in) |
| 1958 | 84.8 mm (3.3 in) |
| 1959 | 136.8 mm (5.4 in) |
| 1960 | 88.9 mm (3.5 in) |
| 1961 | 91.0 mm (3.6 in) |
| 1962 | 73.9 mm (2.9 in) |
| 1963 | 62.8 mm (2.5 in) |
| 1964 | 154.6 mm (6.1 in) |
| 1965 | 128.0 mm (5.0 in) |
| 1966 | 69.7 mm (2.7 in) |
| 1967 | 110.5 mm (4.4 in) |
| 1968 | 90.8 mm (3.6 in) |
| 1969 | 72.9 mm (2.9 in) |
| 1970 | 144.8 mm (5.7 in) |
| 1971 | 70.4 mm (2.8 in) |
| 1972 | 69.4 mm (2.7 in) |
| 1973 | 120.1 mm (4.7 in) |
| 1974 | 86.4 mm (3.4 in) |
| 1975 | 89.6 mm (3.5 in) |
| 1976 | 77.0 mm (3.0 in) |
| 1977 | 116.1 mm (4.6 in) |
| 1978 | 68.0 mm (2.7 in) |
| 1979 | 120.6 mm (4.7 in) |
| 1980 | 125.0 mm (4.9 in) |
| 1981 | 66.9 mm (2.6 in) |
| 1982 | 95.5 mm (3.8 in) |
| 1983 | 87.7 mm (3.5 in) |
| 1984 | 50.9 mm (2.0 in) |
| 1985 | 75.2 mm (3.0 in) |
| 1986 | 223.4 mm (8.8 in) |
| 1987 | 146.3 mm (5.8 in) |
| 1988 | 99.6 mm (3.9 in) |
| 1989 | 145.6 mm (5.7 in) |
| 1990 | 66.3 mm (2.6 in) |
| 1991 | 67.9 mm (2.7 in) |
| 1992 | 135.4 mm (5.3 in) |
| 1993 | 176.8 mm (7.0 in) |
| 1994 | 83.0 mm (3.3 in) |
| 1995 | 306.6 mm (12.1 in) |
| 1996 | 96.9 mm (3.8 in) |
| 1997 | 61.5 mm (2.4 in) |
| 1998 | 234.7 mm (9.2 in) |
| 1999 | 94.2 mm (3.7 in) |
| 2000 | 99.9 mm (3.9 in) |
| 2001 | 63.8 mm (2.5 in) |
| 2002 | 172.8 mm (6.8 in) |
| 2003 | 113.5 mm (4.5 in) |
| 2004 | 112.1 mm (4.4 in) |
| 2005 | 120.7 mm (4.8 in) |
| 2006 | 65.8 mm (2.6 in) |
| 2007 | 148.2 mm (5.8 in) |
| 2008 | 235.2 mm (9.3 in) |
| 2009 | 63.2 mm (2.5 in) |
| 2010 | 88.4 mm (3.5 in) |
| 2011 | 57.7 mm (2.3 in) |
| 2012 | 77.7 mm (3.1 in) |
| 2013 | 71.4 mm (2.8 in) |
| 2014 | 55.6 mm (2.2 in) |
| 2015 | 163.4 mm (6.4 in) |
| 2016 | 103.4 mm (4.1 in) |
| 2017 | 120.3 mm (4.7 in) |
| 2018 | 134.1 mm (5.3 in) |
| 2019 | 145.8 mm (5.7 in) |
| 2020 | 96.8 mm (3.8 in) |
| 2021 | 87.6 mm (3.4 in) |
| 2022 | 110.3 mm (4.3 in) |
| 2023 | 91.7 mm (3.6 in) |
| 2024 | 132.1 mm (5.2 in) |
| 2025 | 137.2 mm (5.4 in) |
| 2026 | 115.6 mm (4.6 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1946 | 32 days |
| 1947 | 33 days |
| 1948 | 31 days |
| 1949 | 50 days |
| 1950 | 58 days |
| 1951 | 36 days |
| 1952 | 51 days |
| 1953 | 40 days |
| 1954 | 52 days |
| 1955 | 57 days |
| 1956 | 47 days |
| 1957 | 36 days |
| 1958 | 21 days |
| 1959 | 39 days |
| 1960 | 20 days |
| 1961 | 37 days |
| 1962 | 22 days |
| 1963 | 41 days |
| 1964 | 34 days |
| 1965 | 52 days |
| 1966 | 64 days |
| 1967 | 25 days |
| 1968 | 28 days |
| 1969 | 44 days |
| 1970 | 43 days |
| 1971 | 56 days |
| 1972 | 41 days |
| 1973 | 28 days |
| 1974 | 42 days |
| 1975 | 43 days |
| 1976 | 62 days |
| 1977 | 44 days |
| 1978 | 40 days |
| 1979 | 44 days |
| 1980 | 24 days |
| 1981 | 22 days |
| 1982 | 30 days |
| 1983 | 52 days |
| 1984 | 26 days |
| 1985 | 25 days |
| 1986 | 40 days |
| 1987 | 20 days |
| 1988 | 42 days |
| 1989 | 38 days |
| 1990 | 37 days |
| 1991 | 33 days |
| 1992 | 27 days |
| 1993 | 34 days |
| 1994 | 52 days |
| 1995 | 37 days |
| 1996 | 72 days |
| 1997 | 28 days |
| 1998 | 20 days |
| 1999 | 28 days |
| 2000 | 46 days |
| 2001 | 43 days |
| 2002 | 30 days |
| 2003 | 37 days |
| 2004 | 24 days |
| 2005 | 47 days |
| 2006 | 53 days |
| 2007 | 31 days |
| 2008 | 31 days |
| 2009 | 26 days |
| 2010 | 43 days |
| 2011 | 48 days |
| 2012 | 25 days |
| 2013 | 30 days |
| 2014 | 22 days |
| 2015 | 39 days |
| 2016 | 60 days |
| 2017 | 37 days |
| 2018 | 39 days |
| 2019 | 27 days |
| 2020 | 45 days |
| 2021 | 58 days |
| 2022 | 30 days |
| 2023 | 30 days |
| 2024 | 43 days |
| 2025 | 36 days |
| 2026 | 23 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
49 years with a frostAcross 49 years with a frost, the median last spring frost at Great Salt Plains Dam falls on 4 April and the median first autumn frost on 1 November, which leaves a median of 213 days between them.
Fitted over all years, the growing season changes by +1.7 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1966 to 2009) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 4 April | n/a | 4 April | n/a | -1.5 days per decade |
| First autumn frost | 1 November | n/a | 2 November | n/a | +0.2 days per decade |
| Growing days | 213 days | n/a | 215 days | n/a | +1.7 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
71 years, 1947 to 2025A day with at least 69.7 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 175.0 mm (6.9 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 69.7 mm (2.7 in) | |
| 5 years | 93.8 mm (3.7 in) | |
| 10 years | 111.2 mm (4.4 in) | |
| 25 years | 135.2 mm (5.3 in) | |
| 50 years | 154.5 mm (6.1 in) | |
| 100 years | 175.0 mm (6.9 in) | Longer than the 71 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, 71 years of values from 1947 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: 215.9 mm (8.5 in) in 2008; 141.0 mm (5.6 in) in 2002; 122.7 mm (4.8 in) in 2019.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Great Salt Plains Dam, at 1978 and 1988. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1978 ran 0.3 C (0.6 F) lower than in the years before (possible change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1988 ran 0.5 C (0.9 F) higher than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1978 | -0.3 | -0.6 | possible | 5 |
| 1988 | +0.5 | +0.9 | possible | 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.
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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-12).