Whalen Dam (Usbr) Threshold Days by Year (USC00489604)
19 fixed thresholds counted per year at Whalen Dam (Usbr) (USC00489604): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Whalen Dam (Usbr) Thresholds
- Whalen Dam (Usbr): nights with a minimum temperature at or below 0 C (32 F) in 52 years, most in 1970 with 204.
- Whalen Dam (Usbr): nights with a minimum temperature at or below -10 C (14 F) in 52 years, most in 1955 with 81.
- Whalen Dam (Usbr): days with a maximum temperature at or above 30 C (86 F) in 51 years, most in 1988 with 97.
- Whalen Dam (Usbr): days with a maximum temperature at or above 35 C (95 F) in 51 years, most in 1988 with 42.
- 19 fixed thresholds have at least one qualifying day at Whalen Dam (Usbr).
Days at or above 30 C (86 F)
51 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1950 | 53 | 64.3 |
| 1951 | 30 | 64.3 |
| 1952 | 71 | 64.3 |
| 1953 | 67 | 64.3 |
| 1954 | 77 | 64.3 |
| 1955 | 70 | 64.3 |
| 1956 | 80 | 64.3 |
| 1957 | 58 | 64.3 |
| 1958 | 59 | 64.3 |
| 1959 | 78 | 64.3 |
| 1960 | 74 | 65.6 |
| 1961 | 73 | 65.6 |
| 1962 | 58 | 65.6 |
| 1963 | 81 | 65.6 |
| 1964 | 66 | 65.6 |
| 1965 | 39 | 65.6 |
| 1966 | 84 | 65.6 |
| 1967 | 52 | 65.6 |
| 1968 | 53 | 65.6 |
| 1969 | 76 | 65.6 |
| 1970 | 68 | 65.8 |
| 1971 | 66 | 65.8 |
| 1972 | 61 | 65.8 |
| 1973 | 45 | 65.8 |
| 1974 | 66 | 65.8 |
| 1975 | 65 | 65.8 |
| 1976 | 71 | 65.8 |
| 1977 | 71 | 65.8 |
| 1978 | 79 | 65.8 |
| 1980 | 87 | 80.9 |
| 1981 | 84 | 80.9 |
| 1982 | 65 | 80.9 |
| 1983 | 83 | 80.9 |
| 1984 | 85 | 80.9 |
| 1985 | 73 | 80.9 |
| 1986 | 65 | 80.9 |
| 1987 | 81 | 80.9 |
| 1988 | 97 | 80.9 |
| 1989 | 89 | 80.9 |
| 1990 | 49 | 49 |
| 2012 | 83 | 63.2 |
| 2013 | 70 | 63.2 |
| 2014 | 55 | 63.2 |
| 2015 | 60 | 63.2 |
| 2016 | 61 | 63.2 |
| 2019 | 50 | 63.2 |
| 2020 | 78 | 72.2 |
| 2021 | 78 | 72.2 |
| 2022 | 76 | 72.2 |
| 2025 | 59 | 72.2 |
| 2026 | 70 | 72.2 |
| Year | First date | Last date |
|---|---|---|
| 1950 | 1950-06-06 | 1950-10-21 |
| 1951 | 1951-06-25 | 1951-09-09 |
| 1952 | 1952-04-28 | 1952-09-30 |
| 1953 | 1953-04-28 | 1953-10-11 |
| 1954 | 1954-05-14 | 1954-10-08 |
| 1955 | 1955-06-21 | 1955-09-18 |
| 1956 | 1956-05-20 | 1956-10-08 |
| 1957 | 1957-06-05 | 1957-10-02 |
| 1958 | 1958-05-21 | 1958-10-19 |
| 1959 | 1959-05-02 | 1959-09-15 |
| 1960 | 1960-05-13 | 1960-10-09 |
| 1961 | 1961-05-11 | 1961-09-19 |
| 1962 | 1962-04-21 | 1962-10-11 |
| 1963 | 1963-05-07 | 1963-10-06 |
| 1964 | 1964-05-17 | 1964-09-18 |
| 1965 | 1965-06-23 | 1965-10-10 |
| 1966 | 1966-05-05 | 1966-09-25 |
| 1967 | 1967-05-23 | 1967-10-04 |
| 1968 | 1968-06-03 | 1968-10-15 |
| 1969 | 1969-05-25 | 1969-09-29 |
| 1970 | 1970-05-19 | 1970-10-04 |
| 1971 | 1971-06-15 | 1971-09-13 |
| 1972 | 1972-05-16 | 1972-09-19 |
| 1973 | 1973-05-31 | 1973-10-02 |
| 1974 | 1974-05-27 | 1974-09-27 |
| 1975 | 1975-05-16 | 1975-10-07 |
| 1976 | 1976-05-15 | 1976-09-18 |
| 1977 | 1977-05-25 | 1977-09-28 |
| 1978 | 1978-05-14 | 1978-09-28 |
| 1980 | 1980-04-21 | 1980-10-01 |
| 1981 | 1981-04-26 | 1981-09-28 |
| 1982 | 1982-05-03 | 1982-09-10 |
| 1983 | 1983-05-26 | 1983-09-27 |
| 1984 | 1984-05-15 | 1984-09-20 |
| 1985 | 1985-05-24 | 1985-09-09 |
| 1986 | 1986-06-03 | 1986-08-30 |
| 1987 | 1987-04-18 | 1987-10-04 |
| 1988 | 1988-05-13 | 1988-09-18 |
| 1989 | 1989-04-22 | 1989-10-01 |
| 1990 | 1990-05-07 | 1990-09-13 |
| 2012 | 2012-04-23 | 2012-10-02 |
| 2013 | 2013-05-13 | 2013-09-21 |
| 2014 | 2014-05-28 | 2014-09-27 |
| 2015 | 2015-06-09 | 2015-10-10 |
| 2016 | 2016-06-07 | 2016-09-20 |
| 2019 | 2019-06-26 | 2019-09-19 |
| 2020 | 2020-05-19 | 2020-10-08 |
| 2021 | 2021-06-03 | 2021-10-05 |
| 2022 | 2022-05-27 | 2022-09-28 |
| 2025 | 2025-05-11 | 2025-10-03 |
| 2026 | 2026-03-18 | 2026-08-31 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 51 | 97 | 1988 | 70 |
| 35 C (95 F): Days | 51 | 42 | 1988 | 28 |
| 40 C (104 F): Days | 6 | 7 | 1989 | 3 |
| 45 C (113 F): Days | 1 | 1 | 1988 | 1 |
| 90 F (32.2 C): Days | 51 | 75 | 1988 | 49 |
| 100 F (37.8 C): Days | 40 | 10 | 1989 | 8 |
| 110 F (43.3 C): Days | 1 | 1 | 1988 | 1 |
| 0 C (32 F): Ice days (max | 51 | 58 | 1978 | 6 |
| 0 C (32 F): Frost days (min | 52 | 204 | 1970 | 59 |
| -10 C (14 F): Days with min | 52 | 81 | 1955 | 12 |
| -20 C (-4 F): Days with min | 51 | 23 | 1978 | 8 |
| -30 C (-22 F): Days with min | 23 | 6 | 1974 | 1 |
| -40 C (-40 F): Days with min | 1 | 1 | 1989 | 1 |
| 20 C (68 F): Tropical nights (min | 16 | 11 | 1980 | 5 |
| 25 C (77 F): Days with min | 1 | 2 | 1980 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 51 | 17 | 1965 | 2 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 33 | 3 | 1955 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 8 | 1 | 1955 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 2 | 3 | 1960 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1950.
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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2026-10-17).