Mud Mtn Dam Weather Records (USC00455704)
Record envelope, standing records and threshold days for Mud Mtn Dam (USC00455704), Washington, United States, with 88 years of record.
Key Facts for Mud Mtn Dam
- Mud Mtn Dam (USC00455704) is a weather station in Washington, United States at 47.14 latitude and -121.94 longitude, 402 m (1,318 ft) above sea level.
- The station reports from 1939 to 2026, 88 years of record.
- 1,464 records set at Mud Mtn Dam still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Mud Mtn Dam tied a daily record high maximum temperature of 30.6 C (87.1 F) on 21 August 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Washington, United States, 47.14 latitude, -121.94 longitude.
- Elevation: 402 m (1,318 ft).
- Period of record: 1939 to 2026, 88 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
6 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 23.3 C (73.9 F) | -18.9 C (-2.0 F) | 14.4 C (57.9 F) | -4.4 C (24.1 F) |
| Feb | 22.8 C (73.0 F) | -16.7 C (1.9 F) | 19.4 C (66.9 F) | -3.9 C (25.0 F) |
| Mar | 23.9 C (75.0 F) | -11.7 C (10.9 F) | 14.4 C (57.9 F) | -1.7 C (28.9 F) |
| Apr | 30.6 C (87.1 F) | -4.4 C (24.1 F) | 24.4 C (75.9 F) | 0.0 C (32.0 F) |
| May | 33.3 C (91.9 F) | -3.3 C (26.1 F) | 27.2 C (81.0 F) | 3.9 C (39.0 F) |
| Jun | 41.7 C (107.1 F) | 0.0 C (32.0 F) | 33.9 C (93.0 F) | 3.9 C (39.0 F) |
| Jul | 37.2 C (99.0 F) | 1.7 C (35.1 F) | 35.0 C (95.0 F) | 7.2 C (45.0 F) |
| Aug | 36.7 C (98.1 F) | 1.7 C (35.1 F) | 30.6 C (87.1 F) | 7.8 C (46.0 F) |
| Sep | 34.4 C (93.9 F) | -2.2 C (28.0 F) | 27.2 C (81.0 F) | 4.4 C (39.9 F) |
| Oct | 32.2 C (90.0 F) | -5.6 C (21.9 F) | 22.2 C (72.0 F) | 5.6 C (42.1 F) |
| Nov | 24.4 C (75.9 F) | -13.9 C (7.0 F) | n/a | n/a |
| Dec | 18.9 C (66.0 F) | -17.8 C (0.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1939 | 20 |
| 1940 | 11 |
| 1941 | 24 |
| 1942 | 16 |
| 1943 | 15 |
| 1944 | 16 |
| 1945 | 13 |
| 1946 | 8 |
| 1947 | 22 |
| 1948 | 9 |
| 1949 | 27 |
| 1950 | 36 |
| 1951 | 14 |
| 1952 | 15 |
| 1953 | 12 |
| 1954 | 22 |
| 1955 | 35 |
| 1956 | 20 |
| 1957 | 4 |
| 1958 | 17 |
| 1959 | 12 |
| 1960 | 17 |
| 1961 | 18 |
| 1962 | 17 |
| 1963 | 19 |
| 1964 | 14 |
| 1965 | 18 |
| 1966 | 10 |
| 1967 | 11 |
| 1968 | 20 |
| 1969 | 14 |
| 1970 | 15 |
| 1971 | 16 |
| 1972 | 30 |
| 1973 | 17 |
| 1974 | 5 |
| 1975 | 10 |
| 1976 | 11 |
| 1977 | 16 |
| 1978 | 11 |
| 1979 | 12 |
| 1980 | 20 |
| 1981 | 23 |
| 1982 | 13 |
| 1983 | 15 |
| 1984 | 18 |
| 1985 | 23 |
| 1986 | 30 |
| 1987 | 20 |
| 1988 | 9 |
| 1989 | 11 |
| 1990 | 13 |
| 1991 | 12 |
| 1992 | 25 |
| 1993 | 6 |
| 1994 | 10 |
| 1995 | 12 |
| 1996 | 12 |
| 1997 | 7 |
| 1998 | 9 |
| 1999 | 15 |
| 2000 | 26 |
| 2001 | 27 |
| 2002 | 63 |
| 2003 | 23 |
| 2004 | 7 |
| 2005 | 17 |
| 2006 | 12 |
| 2007 | 10 |
| 2008 | 37 |
| 2009 | 24 |
| 2010 | 12 |
| 2011 | 17 |
| 2012 | 6 |
| 2013 | 9 |
| 2014 | 17 |
| 2015 | 16 |
| 2016 | 19 |
| 2017 | 14 |
| 2018 | 16 |
| 2019 | 13 |
| 2020 | 10 |
| 2021 | 19 |
| 2022 | 14 |
| 2023 | 18 |
| 2024 | 19 |
| 2025 | 18 |
| 2026 | 9 |
All-Time Record Progression
6 new records| Date | Kind | Detail |
|---|---|---|
| 1983-05-29 | Record high minimum temperature | Record high minimum temperature 23.9 C (75.0 F) |
| 1986-11-24 | Record daily precipitation | Record daily precipitation 118.6 mm (4.7 in) |
| 1989-02-03 | Record low maximum temperature | Record low maximum temperature -12.2 C (10.0 F) |
| 2017-02-06 | Record daily snowfall | Record daily snowfall 36.8 cm (14.5 in) |
| 2021-06-28 | Record high maximum temperature | Record high maximum temperature 39.4 C (102.9 F) |
| 2021-06-29 | Record high maximum temperature | Record high maximum temperature 41.7 C (107.1 F) |
Wettest Day of Each Month
Nov: 118.6 mm (4.7 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 87.9 mm (3.5 in) | 29 January 1965 |
| Feb | 73.9 mm (2.9 in) | 20 February 1991 |
| Mar | 95.8 mm (3.8 in) | 1 March 2022 |
| Apr | 63.8 mm (2.5 in) | 5 April 1991 |
| May | 64.8 mm (2.6 in) | 30 May 1969 |
| Jun | 64.8 mm (2.6 in) | 2 June 1968 |
| Jul | 43.2 mm (1.7 in) | 13 July 1983 |
| Aug | 86.1 mm (3.4 in) | 18 August 1975 |
| Sep | 63.5 mm (2.5 in) | 30 September 2005 |
| Oct | 61.2 mm (2.4 in) | 21 October 2003 |
| Nov | 118.6 mm (4.7 in) | 24 November 1986 |
| Dec | 93.2 mm (3.7 in) | 11 December 2025 |
Period of Record Coverage
1939 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1939 | 341 | 93% | Yes |
| 1940 | 354 | 97% | Yes |
| 1941 | 347 | 95% | Yes |
| 1942 | 360 | 99% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 363 | 99% | Yes |
| 1946 | 356 | 98% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 363 | 99% | Yes |
| 1949 | 359 | 98% | Yes |
| 1950 | 362 | 99% | Yes |
| 1951 | 360 | 99% | Yes |
| 1952 | 365 | 100% | Yes |
| 1953 | 362 | 99% | Yes |
| 1954 | 361 | 99% | Yes |
| 1955 | 361 | 99% | Yes |
| 1956 | 364 | 99% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 364 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 365 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 365 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 364 | 100% | Yes |
| 1980 | 365 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 332 | 91% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 365 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 364 | 100% | Yes |
| 1987 | 364 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 364 | 100% | Yes |
| 1990 | 362 | 99% | Yes |
| 1991 | 362 | 99% | Yes |
| 1992 | 362 | 99% | Yes |
| 1993 | 359 | 98% | Yes |
| 1994 | 344 | 94% | Yes |
| 1995 | 348 | 95% | Yes |
| 1996 | 352 | 96% | Yes |
| 1997 | 354 | 97% | Yes |
| 1998 | 357 | 98% | Yes |
| 1999 | 351 | 96% | Yes |
| 2000 | 327 | 89% | No |
| 2001 | 362 | 99% | Yes |
| 2002 | 363 | 99% | Yes |
| 2003 | 363 | 99% | Yes |
| 2004 | 360 | 98% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 364 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 365 | 100% | Yes |
| 2009 | 273 | 75% | No |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 362 | 99% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 362 | 99% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 352 | 96% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 362 | 99% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 281 | 77% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 21 August 2026 | Mud Mtn Dam, US | daily high max (Tie, Provisional) | 30.6 C (87.1 F) | tie | 87 years | 8 of 100 (Routine) |
| 23 July 2026 | Mud Mtn Dam, US | daily high max | 35.0 C (95.0 F) | 0.6 C (1.1 F) | 20 years | 15 of 100 (Routine) |
| 16 June 2026 | Mud Mtn Dam, US | daily high max | 31.7 C (89.1 F) | 2.3 C (4.1 F) | 64 years | 31 of 100 (Routine) |
| 15 June 2026 | Mud Mtn Dam, US | daily high min | 17.8 C (64.0 F) | 4.5 C (8.1 F) | 64 years | 43 of 100 (Notable) |
| 15 June 2026 | Mud Mtn Dam, US | daily high max | 33.9 C (93.0 F) | 4.5 C (8.1 F) | 37 years | 27 of 100 (Routine) |
| 14 June 2026 | Mud Mtn Dam, US | daily high min | 15.0 C (59.0 F) | 1.7 C (3.1 F) | 4 years | 15 of 100 (Routine) |
| 4 May 2026 | Mud Mtn Dam, US | daily high min | 13.3 C (55.9 F) | 0.5 C (0.9 F) | 72 years | 30 of 100 (Routine) |
| 4 May 2026 | Mud Mtn Dam, US | daily high max | 27.2 C (81.0 F) | 1.1 C (2.0 F) | 33 years | 20 of 100 (Routine) |
| 3 May 2026 | Mud Mtn Dam, US | daily high min (Tie) | 11.7 C (53.1 F) | tie | 28 years | 4 of 100 (Routine) |
| 22 April 2026 | Mud Mtn Dam, US | daily rain | 33.3 mm (1.3 in) | 9.4 mm (0.37 in) | 12 years | 24 of 100 (Routine) |
| 16 April 2026 | Mud Mtn Dam, US | daily snow depth | 5.1 cm (2.0 in) | 5.1 cm (2.0 in) | 87 years | 20 of 100 (Routine) |
| 16 April 2026 | Mud Mtn Dam, US | daily snowfall | 5.1 cm (2.0 in) | 4.3 cm (1.7 in) | 53 years | 32 of 100 (Routine) |
| 14 March 2026 | Mud Mtn Dam, US | daily low max (Tie) | 1.1 C (34.0 F) | tie | 5 years | 2 of 100 (Routine) |
| 8 March 2026 | Mud Mtn Dam, US | daily high min | 7.8 C (46.0 F) | 0.6 C (1.1 F) | 32 years | 19 of 100 (Routine) |
| 6 February 2026 | Mud Mtn Dam, US | daily high max | 17.8 C (64.0 F) | 0.6 C (1.1 F) | 39 years | 20 of 100 (Routine) |
| 30 January 2026 | Mud Mtn Dam, US | daily high min (Tie) | 7.8 C (46.0 F) | tie | 34 years | 4 of 100 (Routine) |
| 16 December 2025 | Mud Mtn Dam, US | daily high min | 7.2 C (45.0 F) | 0.5 C (0.9 F) | 59 years | 26 of 100 (Routine) |
| 14 December 2025 | Mud Mtn Dam, US | daily high min (Tie) | 5.6 C (42.1 F) | tie | 86 years | 8 of 100 (Routine) |
| 11 December 2025 | Mud Mtn Dam, US | monthly rain | 93.2 mm (3.7 in) | 13.4 mm (0.5 in) | 83 years | 56 of 100 (Notable) |
| 11 December 2025 | Mud Mtn Dam, US | daily high min (Tie) | 7.2 C (45.0 F) | tie | 75 years | 7 of 100 (Routine) |
Climate Trend
83 complete years, 1940 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1940 | 10.5 C | +1.16 C |
| 1941 | 10.6 C | +1.22 C |
| 1942 | 9.8 C | +0.43 C |
| 1943 | 9.3 C | -0.02 C |
| 1944 | 9.4 C | +0.10 C |
| 1945 | 9.1 C | -0.27 C |
| 1946 | 8.9 C | -0.43 C |
| 1947 | 9.5 C | +0.20 C |
| 1948 | 8.1 C | -1.21 C |
| 1949 | 8.6 C | -0.77 C |
| 1950 | 8.2 C | -1.12 C |
| 1951 | 9.1 C | -0.29 C |
| 1952 | 9.3 C | -0.02 C |
| 1953 | 9.7 C | +0.31 C |
| 1954 | 8.6 C | -0.76 C |
| 1955 | 7.4 C | -1.93 C |
| 1956 | 8.9 C | -0.45 C |
| 1957 | 9.1 C | -0.29 C |
| 1958 | 11.0 C | +1.65 C |
| 1959 | 9.0 C | -0.36 C |
| 1960 | 9.0 C | -0.34 C |
| 1961 | 9.7 C | +0.36 C |
| 1962 | 9.0 C | -0.30 C |
| 1963 | 9.2 C | -0.16 C |
| 1964 | 8.1 C | -1.24 C |
| 1965 | 9.5 C | +0.11 C |
| 1966 | 9.2 C | -0.13 C |
| 1967 | 9.8 C | +0.46 C |
| 1968 | 9.3 C | 0.00 C |
| 1969 | 9.1 C | -0.24 C |
| 1970 | 9.1 C | -0.25 C |
| 1971 | 8.5 C | -0.88 C |
| 1972 | 8.7 C | -0.69 C |
| 1973 | 9.1 C | -0.26 C |
| 1974 | 9.3 C | -0.04 C |
| 1975 | 8.6 C | -0.74 C |
| 1976 | 9.1 C | -0.21 C |
| 1977 | 9.2 C | -0.14 C |
| 1978 | 9.3 C | -0.02 C |
| 1979 | 9.5 C | +0.16 C |
| 1980 | 9.0 C | -0.33 C |
| 1981 | 9.8 C | +0.42 C |
| 1983 | 9.4 C | +0.01 C |
| 1984 | 8.5 C | -0.86 C |
| 1985 | 8.5 C | -0.87 C |
| 1986 | 9.8 C | +0.49 C |
| 1987 | 10.3 C | +0.93 C |
| 1988 | 9.7 C | +0.35 C |
| 1989 | 9.4 C | +0.10 C |
| 1990 | 9.6 C | +0.28 C |
| 1991 | 9.8 C | +0.44 C |
| 1992 | 10.8 C | +1.41 C |
| 1993 | 9.5 C | +0.19 C |
| 1994 | 10.1 C | +0.71 C |
| 1995 | 10.5 C | +1.14 C |
| 1996 | 9.5 C | +0.15 C |
| 1997 | 10.3 C | +0.91 C |
| 1998 | 10.1 C | +0.80 C |
| 1999 | 8.4 C | -0.98 C |
| 2001 | 7.1 C | -2.27 C |
| 2002 | 7.2 C | -2.17 C |
| 2003 | 9.3 C | -0.05 C |
| 2004 | 8.0 C | -1.34 C |
| 2005 | 7.5 C | -1.80 C |
| 2006 | 10.2 C | +0.84 C |
| 2007 | 9.2 C | -0.10 C |
| 2008 | 8.0 C | -1.35 C |
| 2010 | 9.2 C | -0.17 C |
| 2011 | 8.3 C | -1.08 C |
| 2012 | 9.2 C | -0.12 C |
| 2013 | 9.3 C | -0.04 C |
| 2014 | 10.5 C | +1.12 C |
| 2015 | 11.0 C | +1.67 C |
| 2016 | 10.7 C | +1.34 C |
| 2017 | 9.9 C | +0.51 C |
| 2018 | 10.1 C | +0.80 C |
| 2019 | 9.8 C | +0.49 C |
| 2020 | 10.3 C | +0.92 C |
| 2021 | 10.1 C | +0.75 C |
| 2022 | 10.0 C | +0.70 C |
| 2023 | 10.4 C | +1.03 C |
| 2024 | 10.6 C | +1.25 C |
| 2025 | 10.8 C | +1.43 C |
The annual mean temperature here has risen by 0.08 C (0.01 to 0.15) per decade over 1940 to 2025. In Fahrenheit: 0.14 F (0.01 to 0.28) per decade. The slope is a straight line fitted to 83 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.08 C (0.01 to 0.15) per decade | 0.14 F (0.01 to 0.28) per decade | 1940 to 2025 | 83 | Rise |
| Mean daily maximum | 0.09 C (0.00 to 0.18) per decade | 0.16 F (0.01 to 0.32) per decade | 1940 to 2025 | 83 | Rise |
| Mean daily minimum | 0.07 C (0.00 to 0.14) per decade | 0.13 F (0.00 to 0.25) per decade | 1940 to 2025 | 83 | 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
1939 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 41.7 C (107.1 F) | 2021 | 33.3 C (91.9 F) | 88 |
| Coldest night (TNn) | -18.9 C (-2.0 F) | 1950 | -9.4 C (15.1 F) | 88 |
| Wettest day (Rx1day) | 118.6 mm (4.7 in) | 1986 | 51.0 mm (2.0 in) | 88 |
| Wettest five days (Rx5day) | 208.0 mm (8.2 in) | 1986 | 104.1 mm (4.1 in) | 80 |
| Longest dry spell (CDD) | 51 days | 1951 | 21 days | 88 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1939 | 33.3 C (91.9 F) |
| 1940 | 33.3 C (91.9 F) |
| 1941 | 35.6 C (96.1 F) |
| 1942 | 37.2 C (99.0 F) |
| 1943 | 31.7 C (89.1 F) |
| 1944 | 33.9 C (93.0 F) |
| 1945 | 31.1 C (88.0 F) |
| 1946 | 32.2 C (90.0 F) |
| 1947 | 30.6 C (87.1 F) |
| 1948 | 30.0 C (86.0 F) |
| 1949 | 30.6 C (87.1 F) |
| 1950 | 30.6 C (87.1 F) |
| 1951 | 33.9 C (93.0 F) |
| 1952 | 32.8 C (91.0 F) |
| 1953 | 32.2 C (90.0 F) |
| 1954 | 26.7 C (80.1 F) |
| 1955 | 32.2 C (90.0 F) |
| 1956 | 33.9 C (93.0 F) |
| 1957 | 28.9 C (84.0 F) |
| 1958 | 35.0 C (95.0 F) |
| 1959 | 32.8 C (91.0 F) |
| 1960 | 35.0 C (95.0 F) |
| 1961 | 34.4 C (93.9 F) |
| 1962 | 30.0 C (86.0 F) |
| 1963 | 31.7 C (89.1 F) |
| 1964 | 28.3 C (82.9 F) |
| 1965 | 33.3 C (91.9 F) |
| 1966 | 28.9 C (84.0 F) |
| 1967 | 34.4 C (93.9 F) |
| 1968 | 31.1 C (88.0 F) |
| 1969 | 30.6 C (87.1 F) |
| 1970 | 33.3 C (91.9 F) |
| 1971 | 33.9 C (93.0 F) |
| 1972 | 32.8 C (91.0 F) |
| 1973 | 32.2 C (90.0 F) |
| 1974 | 31.1 C (88.0 F) |
| 1975 | 29.4 C (84.9 F) |
| 1976 | 28.3 C (82.9 F) |
| 1977 | 36.1 C (97.0 F) |
| 1978 | 34.4 C (93.9 F) |
| 1979 | 34.4 C (93.9 F) |
| 1980 | 31.7 C (89.1 F) |
| 1981 | 36.7 C (98.1 F) |
| 1982 | 33.9 C (93.0 F) |
| 1983 | 33.3 C (91.9 F) |
| 1984 | 32.2 C (90.0 F) |
| 1985 | 33.9 C (93.0 F) |
| 1986 | 33.3 C (91.9 F) |
| 1987 | 33.9 C (93.0 F) |
| 1988 | 33.9 C (93.0 F) |
| 1989 | 31.7 C (89.1 F) |
| 1990 | 34.4 C (93.9 F) |
| 1991 | 34.4 C (93.9 F) |
| 1992 | 33.3 C (91.9 F) |
| 1993 | 33.9 C (93.0 F) |
| 1994 | 35.6 C (96.1 F) |
| 1995 | 32.8 C (91.0 F) |
| 1996 | 33.9 C (93.0 F) |
| 1997 | 31.1 C (88.0 F) |
| 1998 | 36.1 C (97.0 F) |
| 1999 | 30.0 C (86.0 F) |
| 2000 | 29.4 C (84.9 F) |
| 2001 | 28.3 C (82.9 F) |
| 2002 | 31.1 C (88.0 F) |
| 2003 | 34.4 C (93.9 F) |
| 2004 | 32.2 C (90.0 F) |
| 2005 | 27.8 C (82.0 F) |
| 2006 | 35.6 C (96.1 F) |
| 2007 | 35.0 C (95.0 F) |
| 2008 | 33.3 C (91.9 F) |
| 2009 | 33.3 C (91.9 F) |
| 2010 | 33.3 C (91.9 F) |
| 2011 | 32.2 C (90.0 F) |
| 2012 | 34.4 C (93.9 F) |
| 2013 | 32.2 C (90.0 F) |
| 2014 | 35.0 C (95.0 F) |
| 2015 | 34.4 C (93.9 F) |
| 2016 | 33.9 C (93.0 F) |
| 2017 | 34.4 C (93.9 F) |
| 2018 | 33.9 C (93.0 F) |
| 2019 | 31.1 C (88.0 F) |
| 2020 | 34.4 C (93.9 F) |
| 2021 | 41.7 C (107.1 F) |
| 2022 | 35.6 C (96.1 F) |
| 2023 | 36.1 C (97.0 F) |
| 2024 | 35.6 C (96.1 F) |
| 2025 | 33.9 C (93.0 F) |
| 2026 | 35.0 C (95.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1939 | -6.7 C (19.9 F) |
| 1940 | -6.1 C (21.0 F) |
| 1941 | -10.0 C (14.0 F) |
| 1942 | -8.9 C (16.0 F) |
| 1943 | -13.9 C (7.0 F) |
| 1944 | -6.7 C (19.9 F) |
| 1945 | -5.6 C (21.9 F) |
| 1946 | -7.8 C (18.0 F) |
| 1947 | -12.8 C (9.0 F) |
| 1948 | -7.2 C (19.0 F) |
| 1949 | -12.2 C (10.0 F) |
| 1950 | -18.9 C (-2.0 F) |
| 1951 | -11.1 C (12.0 F) |
| 1952 | -11.1 C (12.0 F) |
| 1953 | -4.4 C (24.1 F) |
| 1954 | -11.1 C (12.0 F) |
| 1955 | -12.8 C (9.0 F) |
| 1956 | -15.0 C (5.0 F) |
| 1957 | -15.6 C (3.9 F) |
| 1958 | -4.4 C (24.1 F) |
| 1959 | -13.9 C (7.0 F) |
| 1960 | -7.8 C (18.0 F) |
| 1961 | -7.2 C (19.0 F) |
| 1962 | -12.8 C (9.0 F) |
| 1963 | -12.8 C (9.0 F) |
| 1964 | -16.1 C (3.0 F) |
| 1965 | -6.7 C (19.9 F) |
| 1966 | -4.4 C (24.1 F) |
| 1967 | -6.7 C (19.9 F) |
| 1968 | -17.2 C (1.0 F) |
| 1969 | -11.7 C (10.9 F) |
| 1970 | -6.7 C (19.9 F) |
| 1971 | -8.9 C (16.0 F) |
| 1972 | -14.4 C (6.1 F) |
| 1973 | -10.6 C (12.9 F) |
| 1974 | -10.6 C (12.9 F) |
| 1975 | -7.8 C (18.0 F) |
| 1976 | -7.2 C (19.0 F) |
| 1977 | -7.8 C (18.0 F) |
| 1978 | -13.3 C (8.1 F) |
| 1979 | -12.8 C (9.0 F) |
| 1980 | -15.0 C (5.0 F) |
| 1981 | -7.8 C (18.0 F) |
| 1982 | -14.4 C (6.1 F) |
| 1983 | -16.1 C (3.0 F) |
| 1984 | -9.4 C (15.1 F) |
| 1985 | -13.9 C (7.0 F) |
| 1986 | -10.0 C (14.0 F) |
| 1987 | -7.8 C (18.0 F) |
| 1988 | -6.7 C (19.9 F) |
| 1989 | -16.7 C (1.9 F) |
| 1990 | -15.6 C (3.9 F) |
| 1991 | -7.2 C (19.0 F) |
| 1992 | -6.1 C (21.0 F) |
| 1993 | -10.0 C (14.0 F) |
| 1994 | -7.8 C (18.0 F) |
| 1995 | -9.4 C (15.1 F) |
| 1996 | -11.7 C (10.9 F) |
| 1997 | -6.7 C (19.9 F) |
| 1998 | -12.8 C (9.0 F) |
| 1999 | -5.6 C (21.9 F) |
| 2000 | -6.7 C (19.9 F) |
| 2001 | -7.8 C (18.0 F) |
| 2002 | -9.4 C (15.1 F) |
| 2003 | -10.6 C (12.9 F) |
| 2004 | -11.7 C (10.9 F) |
| 2005 | -8.9 C (16.0 F) |
| 2006 | -8.3 C (17.1 F) |
| 2007 | -8.9 C (16.0 F) |
| 2008 | -17.8 C (0.0 F) |
| 2009 | -12.2 C (10.0 F) |
| 2010 | -13.9 C (7.0 F) |
| 2011 | -12.2 C (10.0 F) |
| 2012 | -5.0 C (23.0 F) |
| 2013 | -11.7 C (10.9 F) |
| 2014 | -10.0 C (14.0 F) |
| 2015 | -6.1 C (21.0 F) |
| 2016 | -9.4 C (15.1 F) |
| 2017 | -7.8 C (18.0 F) |
| 2018 | -8.3 C (17.1 F) |
| 2019 | -10.6 C (12.9 F) |
| 2020 | -6.1 C (21.0 F) |
| 2021 | -8.9 C (16.0 F) |
| 2022 | -11.7 C (10.9 F) |
| 2023 | -8.3 C (17.1 F) |
| 2024 | -13.3 C (8.1 F) |
| 2025 | -8.9 C (16.0 F) |
| 2026 | -4.4 C (24.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1939 | 57.7 mm (2.3 in) |
| 1940 | 48.0 mm (1.9 in) |
| 1941 | 79.8 mm (3.1 in) |
| 1942 | 34.5 mm (1.4 in) |
| 1943 | 54.9 mm (2.2 in) |
| 1944 | 32.5 mm (1.3 in) |
| 1945 | 43.4 mm (1.7 in) |
| 1946 | 77.0 mm (3.0 in) |
| 1947 | 39.9 mm (1.6 in) |
| 1948 | 39.9 mm (1.6 in) |
| 1949 | 53.6 mm (2.1 in) |
| 1950 | 53.3 mm (2.1 in) |
| 1951 | 49.3 mm (1.9 in) |
| 1952 | 31.8 mm (1.3 in) |
| 1953 | 48.0 mm (1.9 in) |
| 1954 | 44.7 mm (1.8 in) |
| 1955 | 57.7 mm (2.3 in) |
| 1956 | 47.0 mm (1.9 in) |
| 1957 | 51.6 mm (2.0 in) |
| 1958 | 47.2 mm (1.9 in) |
| 1959 | 73.2 mm (2.9 in) |
| 1960 | 44.7 mm (1.8 in) |
| 1961 | 38.9 mm (1.5 in) |
| 1962 | 50.8 mm (2.0 in) |
| 1963 | 59.2 mm (2.3 in) |
| 1964 | 71.1 mm (2.8 in) |
| 1965 | 87.9 mm (3.5 in) |
| 1966 | 52.3 mm (2.1 in) |
| 1967 | 36.8 mm (1.4 in) |
| 1968 | 64.8 mm (2.6 in) |
| 1969 | 64.8 mm (2.6 in) |
| 1970 | 36.1 mm (1.4 in) |
| 1971 | 50.3 mm (2.0 in) |
| 1972 | 50.8 mm (2.0 in) |
| 1973 | 36.1 mm (1.4 in) |
| 1974 | 57.4 mm (2.3 in) |
| 1975 | 86.1 mm (3.4 in) |
| 1976 | 47.8 mm (1.9 in) |
| 1977 | 55.9 mm (2.2 in) |
| 1978 | 44.7 mm (1.8 in) |
| 1979 | 59.9 mm (2.4 in) |
| 1980 | 37.6 mm (1.5 in) |
| 1981 | 45.2 mm (1.8 in) |
| 1982 | 44.2 mm (1.7 in) |
| 1983 | 56.9 mm (2.2 in) |
| 1984 | 65.8 mm (2.6 in) |
| 1985 | 50.0 mm (2.0 in) |
| 1986 | 118.6 mm (4.7 in) |
| 1987 | 57.7 mm (2.3 in) |
| 1988 | 38.6 mm (1.5 in) |
| 1989 | 66.8 mm (2.6 in) |
| 1990 | 64.0 mm (2.5 in) |
| 1991 | 73.9 mm (2.9 in) |
| 1992 | 43.7 mm (1.7 in) |
| 1993 | 55.1 mm (2.2 in) |
| 1994 | 51.6 mm (2.0 in) |
| 1995 | 50.3 mm (2.0 in) |
| 1996 | 72.1 mm (2.8 in) |
| 1997 | 48.0 mm (1.9 in) |
| 1998 | 45.2 mm (1.8 in) |
| 1999 | 63.5 mm (2.5 in) |
| 2000 | 32.5 mm (1.3 in) |
| 2001 | 47.2 mm (1.9 in) |
| 2002 | 59.9 mm (2.4 in) |
| 2003 | 61.2 mm (2.4 in) |
| 2004 | 47.5 mm (1.9 in) |
| 2005 | 63.5 mm (2.5 in) |
| 2006 | 69.9 mm (2.8 in) |
| 2007 | 78.2 mm (3.1 in) |
| 2008 | 63.8 mm (2.5 in) |
| 2009 | 57.2 mm (2.3 in) |
| 2010 | 48.0 mm (1.9 in) |
| 2011 | 51.6 mm (2.0 in) |
| 2012 | 40.1 mm (1.6 in) |
| 2013 | 40.6 mm (1.6 in) |
| 2014 | 47.8 mm (1.9 in) |
| 2015 | 67.3 mm (2.6 in) |
| 2016 | 36.1 mm (1.4 in) |
| 2017 | 43.9 mm (1.7 in) |
| 2018 | 31.2 mm (1.2 in) |
| 2019 | 49.3 mm (1.9 in) |
| 2020 | 55.6 mm (2.2 in) |
| 2021 | 51.1 mm (2.0 in) |
| 2022 | 95.8 mm (3.8 in) |
| 2023 | 74.2 mm (2.9 in) |
| 2024 | 43.2 mm (1.7 in) |
| 2025 | 93.2 mm (3.7 in) |
| 2026 | 41.4 mm (1.6 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1939 | 101.2 mm (4.0 in) |
| 1940 | 97.5 mm (3.8 in) |
| 1941 | 145.1 mm (5.7 in) |
| 1942 | 89.9 mm (3.5 in) |
| 1943 | 104.5 mm (4.1 in) |
| 1944 | 65.6 mm (2.6 in) |
| 1945 | 77.5 mm (3.1 in) |
| 1946 | 156.0 mm (6.1 in) |
| 1947 | 99.8 mm (3.9 in) |
| 1948 | 95.7 mm (3.8 in) |
| 1949 | 109.9 mm (4.3 in) |
| 1950 | 112.5 mm (4.4 in) |
| 1951 | 134.7 mm (5.3 in) |
| 1952 | 59.1 mm (2.3 in) |
| 1953 | 127.8 mm (5.0 in) |
| 1954 | 81.8 mm (3.2 in) |
| 1955 | 112.9 mm (4.4 in) |
| 1956 | 112.1 mm (4.4 in) |
| 1957 | 88.1 mm (3.5 in) |
| 1958 | 99.8 mm (3.9 in) |
| 1959 | 142.0 mm (5.6 in) |
| 1960 | 128.5 mm (5.1 in) |
| 1961 | 90.7 mm (3.6 in) |
| 1962 | 79.8 mm (3.1 in) |
| 1963 | 96.0 mm (3.8 in) |
| 1964 | 132.8 mm (5.2 in) |
| 1965 | 177.3 mm (7.0 in) |
| 1966 | 92.7 mm (3.6 in) |
| 1967 | 77.0 mm (3.0 in) |
| 1968 | 121.5 mm (4.8 in) |
| 1969 | 142.7 mm (5.6 in) |
| 1970 | 88.1 mm (3.5 in) |
| 1971 | 117.4 mm (4.6 in) |
| 1972 | 104.6 mm (4.1 in) |
| 1973 | 81.9 mm (3.2 in) |
| 1974 | 114.0 mm (4.5 in) |
| 1975 | 142.7 mm (5.6 in) |
| 1976 | 81.2 mm (3.2 in) |
| 1977 | 134.5 mm (5.3 in) |
| 1978 | 106.4 mm (4.2 in) |
| 1979 | 135.9 mm (5.4 in) |
| 1980 | 103.6 mm (4.1 in) |
| 1981 | 102.1 mm (4.0 in) |
| 1982 | 102.1 mm (4.0 in) |
| 1983 | 149.4 mm (5.9 in) |
| 1984 | 126.5 mm (5.0 in) |
| 1985 | 116.5 mm (4.6 in) |
| 1986 | 208.0 mm (8.2 in) |
| 1987 | 89.4 mm (3.5 in) |
| 1988 | 116.6 mm (4.6 in) |
| 1989 | 174.6 mm (6.9 in) |
| 1990 | 185.4 mm (7.3 in) |
| 1991 | 133.1 mm (5.2 in) |
| 1992 | 68.3 mm (2.7 in) |
| 1993 | 71.6 mm (2.8 in) |
| 1994 | 99.6 mm (3.9 in) |
| 1995 | 169.2 mm (6.7 in) |
| 1996 | 187.7 mm (7.4 in) |
| 1997 | 94.5 mm (3.7 in) |
| 1998 | 81.8 mm (3.2 in) |
| 1999 | 142.3 mm (5.6 in) |
| 2000 | 54.1 mm (2.1 in) |
| 2001 | 108.4 mm (4.3 in) |
| 2002 | 83.1 mm (3.3 in) |
| 2003 | 90.1 mm (3.5 in) |
| 2004 | 122.9 mm (4.8 in) |
| 2005 | 99.8 mm (3.9 in) |
| 2006 | 199.2 mm (7.8 in) |
| 2007 | 119.1 mm (4.7 in) |
| 2008 | 125.0 mm (4.9 in) |
| 2009 | 131.7 mm (5.2 in) |
| 2010 | 36.3 mm (1.4 in) |
| 2011 | n/a |
| 2012 | 0.8 mm (0.03 in) |
| 2013 | n/a |
| 2014 | n/a |
| 2015 | 8.1 mm (0.32 in) |
| 2016 | n/a |
| 2017 | 30.8 mm (1.2 in) |
| 2018 | n/a |
| 2019 | n/a |
| 2020 | 123.7 mm (4.9 in) |
| 2021 | 82.2 mm (3.2 in) |
| 2022 | 0.8 mm (0.03 in) |
| 2023 | 8.6 mm (0.34 in) |
| 2024 | 1.3 mm (0.05 in) |
| 2025 | n/a |
| 2026 | n/a |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1939 | 35 days |
| 1940 | 44 days |
| 1941 | 27 days |
| 1942 | 17 days |
| 1943 | 24 days |
| 1944 | 21 days |
| 1945 | 33 days |
| 1946 | 20 days |
| 1947 | 17 days |
| 1948 | 12 days |
| 1949 | 20 days |
| 1950 | 29 days |
| 1951 | 51 days |
| 1952 | 38 days |
| 1953 | 21 days |
| 1954 | 23 days |
| 1955 | 37 days |
| 1956 | 23 days |
| 1957 | 25 days |
| 1958 | 26 days |
| 1959 | 11 days |
| 1960 | 41 days |
| 1961 | 29 days |
| 1962 | 19 days |
| 1963 | 25 days |
| 1964 | 9 days |
| 1965 | 24 days |
| 1966 | 28 days |
| 1967 | 42 days |
| 1968 | 15 days |
| 1969 | 24 days |
| 1970 | 24 days |
| 1971 | 40 days |
| 1972 | 33 days |
| 1973 | 40 days |
| 1974 | 26 days |
| 1975 | 16 days |
| 1976 | 21 days |
| 1977 | 25 days |
| 1978 | 19 days |
| 1979 | 32 days |
| 1980 | 17 days |
| 1981 | 29 days |
| 1982 | 13 days |
| 1983 | 16 days |
| 1984 | 36 days |
| 1985 | 36 days |
| 1986 | 33 days |
| 1987 | 17 days |
| 1988 | 32 days |
| 1989 | 15 days |
| 1990 | 22 days |
| 1991 | 39 days |
| 1992 | 16 days |
| 1993 | 24 days |
| 1994 | 20 days |
| 1995 | 18 days |
| 1996 | 29 days |
| 1997 | 40 days |
| 1998 | 24 days |
| 1999 | 17 days |
| 2000 | 26 days |
| 2001 | 18 days |
| 2002 | 17 days |
| 2003 | 22 days |
| 2004 | 15 days |
| 2005 | 23 days |
| 2006 | 18 days |
| 2007 | 14 days |
| 2008 | 20 days |
| 2009 | 12 days |
| 2010 | 5 days |
| 2011 | 4 days |
| 2012 | 5 days |
| 2013 | 4 days |
| 2014 | 4 days |
| 2015 | 4 days |
| 2016 | 4 days |
| 2017 | 4 days |
| 2018 | 4 days |
| 2019 | 4 days |
| 2020 | 11 days |
| 2021 | 13 days |
| 2022 | 12 days |
| 2023 | 5 days |
| 2024 | 6 days |
| 2025 | 4 days |
| 2026 | 4 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
83 years with a frostAcross 83 years with a frost, the median last spring frost at Mud Mtn Dam falls on 24 April and the median first autumn frost on 27 October, which leaves a median of 184 days between them.
In 1994 to 2025 the median growing season was 185 days. That is 3 days fewer than in 1940 to 1969.
Fitted over all years, the growing season changes by +0.6 days per decade at this station.
| Measure | Median, all years | Earliest period (1940 to 1969) | Recent period (1994 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 24 April | 27 April | 20 April | 7 days earlier | -0.9 days per decade |
| First autumn frost | 27 October | 29 October | 29 October | no change | -0.3 days per decade |
| Growing days | 184 days | 188 days | 185 days | 3 days fewer | +0.6 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
64 years, 1940 to 2008A day with at least 51.8 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 105.1 mm (4.1 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 51.8 mm (2.0 in) | |
| 5 years | 65.4 mm (2.6 in) | |
| 10 years | 74.7 mm (2.9 in) | |
| 25 years | 86.8 mm (3.4 in) | |
| 50 years | 95.9 mm (3.8 in) | |
| 100 years | 105.1 mm (4.1 in) | Longer than the 64 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, 64 years of values from 1940 to 2008.
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: 118.6 mm (4.7 in) in 1986; 87.9 mm (3.5 in) in 1965; 86.1 mm (3.4 in) in 1975.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
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).