Fossil Threshold Days by Year (USC00353038)
15 fixed thresholds counted per year at Fossil (USC00353038): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Fossil Thresholds
- Fossil: days with 10 mm (0.39 in) or more of precipitation in 74 years, most in 1981 with 20.
- Fossil: nights with a minimum temperature at or below 0 C (32 F) in 54 years, most in 1985 with 191.
- Fossil: nights with a minimum temperature at or below -10 C (14 F) in 52 years, most in 1985 with 40.
- Fossil: days with a maximum temperature at or above 30 C (86 F) in 42 years, most in 1958 with 68.
- 15 fixed thresholds have at least one qualifying day at Fossil.
Days at or above 30 C (86 F)
42 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1946 | 28 | 32 |
| 1947 | 36 | 32 |
| 1951 | 47 | 41.3 |
| 1952 | 23 | 41.3 |
| 1953 | 32 | 41.3 |
| 1954 | 36 | 41.3 |
| 1955 | 42 | 41.3 |
| 1956 | 35 | 41.3 |
| 1958 | 68 | 41.3 |
| 1959 | 47 | 41.3 |
| 1963 | 28 | 33 |
| 1965 | 26 | 33 |
| 1967 | 55 | 33 |
| 1969 | 23 | 33 |
| 1970 | 49 | 38 |
| 1971 | 37 | 38 |
| 1972 | 39 | 38 |
| 1973 | 46 | 38 |
| 1976 | 16 | 38 |
| 1977 | 55 | 38 |
| 1978 | 30 | 38 |
| 1979 | 32 | 38 |
| 1980 | 38 | 36.8 |
| 1981 | 32 | 36.8 |
| 1982 | 34 | 36.8 |
| 1983 | 26 | 36.8 |
| 1984 | 25 | 36.8 |
| 1985 | 33 | 36.8 |
| 1986 | 50 | 36.8 |
| 1987 | 45 | 36.8 |
| 1988 | 48 | 36.8 |
| 1990 | 48 | 51.3 |
| 1991 | 53 | 51.3 |
| 1992 | 53 | 51.3 |
| 2011 | 36 | 37 |
| 2012 | 30 | 37 |
| 2013 | 38 | 37 |
| 2014 | 44 | 37 |
| 2020 | 42 | 50.8 |
| 2021 | 62 | 50.8 |
| 2023 | 50 | 50.8 |
| 2024 | 49 | 50.8 |
| Year | First date | Last date |
|---|---|---|
| 1946 | 1946-04-25 | 1946-09-24 |
| 1947 | 1947-05-01 | 1947-09-24 |
| 1951 | 1951-05-22 | 1951-09-19 |
| 1952 | 1952-05-27 | 1952-09-26 |
| 1953 | 1953-07-02 | 1953-10-07 |
| 1954 | 1954-05-17 | 1954-09-10 |
| 1955 | 1955-06-06 | 1955-09-11 |
| 1956 | 1956-05-17 | 1956-09-17 |
| 1958 | 1958-05-21 | 1958-10-05 |
| 1959 | 1959-06-01 | 1959-09-13 |
| 1963 | 1963-06-15 | 1963-10-02 |
| 1965 | 1965-06-10 | 1965-08-19 |
| 1967 | 1967-06-16 | 1967-09-29 |
| 1969 | 1969-05-23 | 1969-09-02 |
| 1970 | 1970-06-01 | 1970-10-03 |
| 1971 | 1971-06-22 | 1971-10-06 |
| 1972 | 1972-05-28 | 1972-09-05 |
| 1973 | 1973-05-14 | 1973-09-12 |
| 1976 | 1976-06-28 | 1976-09-30 |
| 1977 | 1977-04-23 | 1977-09-14 |
| 1978 | 1978-06-05 | 1978-09-27 |
| 1979 | 1979-06-11 | 1979-10-06 |
| 1980 | 1980-07-21 | 1980-10-08 |
| 1981 | 1981-07-03 | 1981-09-18 |
| 1982 | 1982-06-15 | 1982-09-03 |
| 1983 | 1983-05-23 | 1983-09-25 |
| 1984 | 1984-07-04 | 1984-08-27 |
| 1985 | 1985-07-01 | 1985-09-26 |
| 1986 | 1986-05-25 | 1986-09-04 |
| 1987 | 1987-05-07 | 1987-09-30 |
| 1988 | 1988-05-12 | 1988-09-15 |
| 1990 | 1990-05-05 | 1990-09-24 |
| 1991 | 1991-06-10 | 1991-10-15 |
| 1992 | 1992-05-06 | 1992-09-24 |
| 2011 | 2011-06-22 | 2011-10-01 |
| 2012 | 2012-07-07 | 2012-09-14 |
| 2013 | 2013-06-28 | 2013-09-15 |
| 2014 | 2014-05-15 | 2014-09-21 |
| 2020 | 2020-05-29 | 2020-09-14 |
| 2021 | 2021-06-01 | 2021-09-25 |
| 2023 | 2023-05-19 | 2023-09-18 |
| 2024 | 2024-06-21 | 2024-09-24 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 42 | 68 | 1958 | 49 |
| 35 C (95 F): Days | 38 | 25 | 2021 | 11 |
| 40 C (104 F): Days | 2 | 2 | 2021 | 2 |
| 90 F (32.2 C): Days | 42 | 47 | 2021 | 38 |
| 100 F (37.8 C): Days | 12 | 5 | 1959 | 3 |
| 0 C (32 F): Ice days (max | 42 | 49 | 1985 | 14 |
| 0 C (32 F): Frost days (min | 54 | 191 | 1985 | 14 |
| -10 C (14 F): Days with min | 52 | 40 | 1985 | 6 |
| -20 C (-4 F): Days with min | 26 | 10 | 1979 | 1 |
| -30 C (-22 F): Days with min | 3 | 1 | 1972 | 1 |
| 20 C (68 F): Tropical nights (min | 5 | 1 | 1977 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 74 | 20 | 1981 | 1 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 36 | 5 | 2024 | 5 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 2 | 3 | 2024 | 3 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 30 | 7 | 1937 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1946.
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 (2026-10-12).