Sym Threshold Days by Year (RSM00023975)
13 fixed thresholds counted per year at Sym (RSM00023975): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Sym Thresholds
- Sym: days with 10 mm (0.39 in) or more of precipitation in 46 years, most in 1965 with 15.
- Sym: days with 25 mm (0.98 in) or more of precipitation in 23 years, most in 1965 with 3.
- 13 fixed thresholds have at least one qualifying day at Sym.
Days with 10 mm (0.39 in) or more of precipitation
46 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1959 | 6 | 6 |
| 1960 | 5 | 7.9 |
| 1961 | 12 | 7.9 |
| 1962 | 4 | 7.9 |
| 1963 | 8 | 7.9 |
| 1964 | 5 | 7.9 |
| 1965 | 15 | 7.9 |
| 1966 | 8 | 7.9 |
| 1967 | 7 | 7.9 |
| 1968 | 7 | 7.9 |
| 1970 | 12 | 8.5 |
| 1971 | 8 | 8.5 |
| 1972 | 6 | 8.5 |
| 1973 | 12 | 8.5 |
| 1974 | 9 | 8.5 |
| 1975 | 8 | 8.5 |
| 1976 | 8 | 8.5 |
| 1977 | 8 | 8.5 |
| 1978 | 8 | 8.5 |
| 1979 | 6 | 8.5 |
| 1980 | 7 | 7.9 |
| 1982 | 6 | 7.9 |
| 1983 | 9 | 7.9 |
| 1984 | 6 | 7.9 |
| 1985 | 11 | 7.9 |
| 1986 | 8 | 7.9 |
| 1988 | 8 | 7.9 |
| 1989 | 8 | 7.9 |
| 1990 | 14 | 10.2 |
| 1991 | 9 | 10.2 |
| 1992 | 10 | 10.2 |
| 1994 | 11 | 10.2 |
| 1995 | 10 | 10.2 |
| 1996 | 7 | 10.2 |
| 2014 | 9 | 7.8 |
| 2015 | 8 | 7.8 |
| 2016 | 6 | 7.8 |
| 2017 | 10 | 7.8 |
| 2018 | 5 | 7.8 |
| 2019 | 9 | 7.8 |
| 2020 | 4 | 5.5 |
| 2021 | 9 | 5.5 |
| 2022 | 7 | 5.5 |
| 2023 | 7 | 5.5 |
| 2024 | 1 | 5.5 |
| 2025 | 5 | 5.5 |
| Year | First date | Last date |
|---|---|---|
| 1959 | 1959-05-15 | 1959-09-02 |
| 1960 | 1960-04-21 | 1960-09-08 |
| 1961 | 1961-04-23 | 1961-10-01 |
| 1962 | 1962-04-23 | 1962-09-02 |
| 1963 | 1963-05-28 | 1963-09-30 |
| 1964 | 1964-05-26 | 1964-11-20 |
| 1965 | 1965-05-04 | 1965-10-03 |
| 1966 | 1966-05-31 | 1966-08-23 |
| 1967 | 1967-07-02 | 1967-09-14 |
| 1968 | 1968-05-18 | 1968-07-20 |
| 1970 | 1970-04-28 | 1970-09-03 |
| 1971 | 1971-03-21 | 1971-10-29 |
| 1972 | 1972-05-19 | 1972-09-20 |
| 1973 | 1973-05-11 | 1973-10-08 |
| 1974 | 1974-06-24 | 1974-09-25 |
| 1975 | 1975-05-12 | 1975-09-23 |
| 1976 | 1976-06-11 | 1976-08-31 |
| 1977 | 1977-05-05 | 1977-10-01 |
| 1978 | 1978-07-21 | 1978-09-29 |
| 1979 | 1979-06-02 | 1979-08-28 |
| 1980 | 1980-05-31 | 1980-07-26 |
| 1982 | 1982-07-02 | 1982-12-23 |
| 1983 | 1983-04-18 | 1983-09-19 |
| 1984 | 1984-05-29 | 1984-11-27 |
| 1985 | 1985-05-31 | 1985-10-05 |
| 1986 | 1986-05-30 | 1986-09-15 |
| 1988 | 1988-05-25 | 1988-09-14 |
| 1989 | 1989-05-04 | 1989-09-25 |
| 1990 | 1990-05-14 | 1990-10-13 |
| 1991 | 1991-06-11 | 1991-09-13 |
| 1992 | 1992-06-05 | 1992-09-11 |
| 1994 | 1994-06-21 | 1994-11-03 |
| 1995 | 1995-03-01 | 1995-12-31 |
| 1996 | 1996-07-09 | 1996-09-03 |
| 2014 | 2014-05-05 | 2014-10-09 |
| 2015 | 2015-04-14 | 2015-09-05 |
| 2016 | 2016-05-14 | 2016-08-23 |
| 2017 | 2017-05-02 | 2017-11-04 |
| 2018 | 2018-04-22 | 2018-09-14 |
| 2019 | 2019-05-31 | 2019-10-29 |
| 2020 | 2020-06-19 | 2020-10-28 |
| 2021 | 2021-05-27 | 2021-09-13 |
| 2022 | 2022-06-17 | 2022-10-12 |
| 2023 | 2023-04-11 | 2023-10-23 |
| 2024 | 2024-06-19 | 2024-06-19 |
| 2025 | 2025-04-26 | 2025-08-12 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 1 | 0 | n/a | 10 |
| 35 C (95 F): Days | 1 | 0 | n/a | 1 |
| 90 F (32.2 C): Days | 1 | 0 | n/a | 1 |
| 100 F (37.8 C): Days | 1 | 0 | n/a | 1 |
| 0 C (32 F): Ice days (max | 1 | 0 | n/a | 70 |
| 0 C (32 F): Frost days (min | 1 | 0 | n/a | 69 |
| -10 C (14 F): Days with min | 1 | 0 | n/a | 39 |
| -20 C (-4 F): Days with min | 1 | 0 | n/a | 23 |
| -30 C (-22 F): Days with min | 1 | 0 | n/a | 9 |
| -40 C (-40 F): Days with min | 1 | 0 | n/a | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 46 | 15 | 1965 | 5 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 23 | 3 | 1965 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 2 | 0 | n/a | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2025.
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).