Rainbow Rsvr Tomahawk Threshold Days by Year (USC00476939)
16 fixed thresholds counted per year at Rainbow Rsvr Tomahawk (USC00476939): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Rainbow Rsvr Tomahawk Thresholds
- Rainbow Rsvr Tomahawk: days with 10 mm (0.39 in) or more of precipitation in 49 years, most in 1991 with 36.
- Rainbow Rsvr Tomahawk: days with 25 mm (0.98 in) or more of precipitation in 49 years, most in 1951 with 12.
- Rainbow Rsvr Tomahawk: days with a maximum temperature at or below 0 C (32 F) in 48 years, most in 1978 with 114.
- Rainbow Rsvr Tomahawk: nights with a minimum temperature at or below 0 C (32 F) in 48 years, most in 1992 with 220.
- 16 fixed thresholds have at least one qualifying day at Rainbow Rsvr Tomahawk.
Days at or above 30 C (86 F)
46 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1947 | 23 | 18 |
| 1949 | 13 | 18 |
| 1950 | 2 | 8.9 |
| 1952 | 7 | 8.9 |
| 1953 | 11 | 8.9 |
| 1954 | 6 | 8.9 |
| 1955 | 18 | 8.9 |
| 1956 | 5 | 8.9 |
| 1957 | 10 | 8.9 |
| 1958 | 5 | 8.9 |
| 1959 | 16 | 8.9 |
| 1960 | 11 | 11.6 |
| 1961 | 9 | 11.6 |
| 1962 | 1 | 11.6 |
| 1963 | 19 | 11.6 |
| 1964 | 24 | 11.6 |
| 1965 | 8 | 11.6 |
| 1966 | 18 | 11.6 |
| 1968 | 8 | 11.6 |
| 1969 | 6 | 11.6 |
| 1970 | 18 | 9 |
| 1971 | 5 | 9 |
| 1972 | 9 | 9 |
| 1973 | 7 | 9 |
| 1974 | 6 | 9 |
| 1975 | 12 | 9 |
| 1976 | 18 | 9 |
| 1977 | 9 | 9 |
| 1978 | 5 | 9 |
| 1979 | 1 | 9 |
| 1980 | 10 | 10.1 |
| 1981 | 3 | 10.1 |
| 1982 | 1 | 10.1 |
| 1983 | 19 | 10.1 |
| 1984 | 2 | 10.1 |
| 1985 | 1 | 10.1 |
| 1986 | 8 | 10.1 |
| 1987 | 16 | 10.1 |
| 1988 | 30 | 10.1 |
| 1989 | 11 | 10.1 |
| 1990 | 2 | 4.8 |
| 1991 | 10 | 4.8 |
| 1992 | 3 | 4.8 |
| 1993 | 1 | 4.8 |
| 1994 | 1 | 4.8 |
| 1995 | 12 | 4.8 |
| Year | First date | Last date |
|---|---|---|
| 1947 | 1947-06-28 | 1947-09-10 |
| 1949 | 1949-05-03 | 1949-08-14 |
| 1950 | 1950-06-06 | 1950-06-07 |
| 1952 | 1952-04-28 | 1952-09-13 |
| 1953 | 1953-06-04 | 1953-09-02 |
| 1954 | 1954-06-13 | 1954-07-26 |
| 1955 | 1955-05-03 | 1955-08-21 |
| 1956 | 1956-06-10 | 1956-06-14 |
| 1957 | 1957-06-17 | 1957-09-01 |
| 1958 | 1958-06-29 | 1958-08-10 |
| 1959 | 1959-05-02 | 1959-08-25 |
| 1960 | 1960-07-12 | 1960-09-07 |
| 1961 | 1961-06-28 | 1961-09-09 |
| 1962 | 1962-05-16 | 1962-05-16 |
| 1963 | 1963-06-03 | 1963-08-07 |
| 1964 | 1964-05-22 | 1964-08-03 |
| 1965 | 1965-06-27 | 1965-08-15 |
| 1966 | 1966-06-25 | 1966-07-26 |
| 1968 | 1968-06-05 | 1968-08-24 |
| 1969 | 1969-05-28 | 1969-08-30 |
| 1970 | 1970-04-29 | 1970-08-15 |
| 1971 | 1971-06-12 | 1971-06-30 |
| 1972 | 1972-05-18 | 1972-08-18 |
| 1973 | 1973-06-11 | 1973-08-30 |
| 1974 | 1974-07-03 | 1974-07-19 |
| 1975 | 1975-05-21 | 1975-08-13 |
| 1976 | 1976-06-09 | 1976-10-02 |
| 1977 | 1977-05-14 | 1977-07-25 |
| 1978 | 1978-08-14 | 1978-09-09 |
| 1979 | 1979-07-12 | 1979-07-12 |
| 1980 | 1980-04-23 | 1980-08-08 |
| 1981 | 1981-07-07 | 1981-08-14 |
| 1982 | 1982-08-04 | 1982-08-04 |
| 1983 | 1983-06-26 | 1983-09-10 |
| 1984 | 1984-08-08 | 1984-08-29 |
| 1985 | 1985-09-07 | 1985-09-07 |
| 1986 | 1986-05-29 | 1986-07-19 |
| 1987 | 1987-06-13 | 1987-08-02 |
| 1988 | 1988-05-30 | 1988-08-17 |
| 1989 | 1989-07-06 | 1989-08-12 |
| 1990 | 1990-06-30 | 1990-07-04 |
| 1991 | 1991-05-14 | 1991-08-31 |
| 1992 | 1992-06-12 | 1992-08-10 |
| 1993 | 1993-08-26 | 1993-08-26 |
| 1994 | 1994-05-21 | 1994-05-21 |
| 1995 | 1995-06-18 | 1995-08-11 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 46 | 30 | 1988 | 12 |
| 35 C (95 F): Days | 7 | 2 | 1947 | 2 |
| 90 F (32.2 C): Days | 28 | 14 | 1988 | 10 |
| 0 C (32 F): Ice days (max | 48 | 114 | 1978 | 103 |
| 0 C (32 F): Frost days (min | 48 | 220 | 1992 | 197 |
| -10 C (14 F): Days with min | 48 | 114 | 1978 | 96 |
| -20 C (-4 F): Days with min | 48 | 60 | 1978 | 38 |
| -30 C (-22 F): Days with min | 45 | 18 | 1979 | 16 |
| -40 C (-40 F): Days with min | 7 | 2 | 1950 | 2 |
| 20 C (68 F): Tropical nights (min | 22 | 5 | 1964 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 49 | 36 | 1991 | 26 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 49 | 12 | 1951 | 7 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 25 | 3 | 1959 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 2 | 1 | 1953 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 28 | 7 | 1985 | 3 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 2 | 1 | 1971 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1947.
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 (2025-12-31).