Otter 9 SSW Threshold Days by Year (USC00246287)
17 fixed thresholds counted per year at Otter 9 SSW (USC00246287): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Otter 9 SSW Thresholds
- Otter 9 SSW: days with 10 mm (0.39 in) or more of precipitation in 27 years, most in 1976 with 19.
- Otter 9 SSW: days with a maximum temperature at or above 30 C (86 F) in 26 years, most in 1988 with 87.
- Otter 9 SSW: days with a maximum temperature at or above 35 C (95 F) in 26 years, most in 1988 with 42.
- Otter 9 SSW: days with a maximum temperature at or above 90 F (32.2 C) in 26 years, most in 1988 with 63.
- 17 fixed thresholds have at least one qualifying day at Otter 9 SSW.
Days at or above 30 C (86 F)
26 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1962 | 37 | 46 |
| 1963 | 59 | 46 |
| 1964 | 52 | 46 |
| 1965 | 29 | 46 |
| 1966 | 70 | 46 |
| 1967 | 45 | 46 |
| 1968 | 29 | 46 |
| 1969 | 47 | 46 |
| 1970 | 63 | 48.1 |
| 1971 | 56 | 48.1 |
| 1972 | 34 | 48.1 |
| 1973 | 37 | 48.1 |
| 1974 | 53 | 48.1 |
| 1975 | 37 | 48.1 |
| 1976 | 61 | 48.1 |
| 1977 | 42 | 48.1 |
| 1978 | 47 | 48.1 |
| 1979 | 51 | 48.1 |
| 1980 | 53 | 57.9 |
| 1981 | 58 | 57.9 |
| 1983 | 58 | 57.9 |
| 1984 | 59 | 57.9 |
| 1986 | 50 | 57.9 |
| 1987 | 40 | 57.9 |
| 1988 | 87 | 57.9 |
| 1989 | 58 | 57.9 |
| Year | First date | Last date |
|---|---|---|
| 1962 | 1962-06-24 | 1962-09-06 |
| 1963 | 1963-06-19 | 1963-10-05 |
| 1964 | 1964-05-20 | 1964-09-17 |
| 1965 | 1965-07-07 | 1965-08-28 |
| 1966 | 1966-05-04 | 1966-09-11 |
| 1967 | 1967-07-05 | 1967-09-22 |
| 1968 | 1968-06-02 | 1968-09-11 |
| 1969 | 1969-05-26 | 1969-09-18 |
| 1970 | 1970-06-07 | 1970-09-01 |
| 1971 | 1971-06-22 | 1971-09-13 |
| 1972 | 1972-05-17 | 1972-09-18 |
| 1973 | 1973-06-13 | 1973-08-31 |
| 1974 | 1974-06-13 | 1974-09-26 |
| 1975 | 1975-05-16 | 1975-09-25 |
| 1976 | 1976-06-02 | 1976-10-02 |
| 1977 | 1977-06-01 | 1977-09-14 |
| 1978 | 1978-05-15 | 1978-09-10 |
| 1979 | 1979-05-16 | 1979-09-18 |
| 1980 | 1980-04-21 | 1980-09-30 |
| 1981 | 1981-05-01 | 1981-09-19 |
| 1983 | 1983-06-10 | 1983-09-08 |
| 1984 | 1984-05-15 | 1984-09-19 |
| 1986 | 1986-05-03 | 1986-08-30 |
| 1987 | 1987-05-08 | 1987-09-23 |
| 1988 | 1988-05-13 | 1988-09-16 |
| 1989 | 1989-04-22 | 1989-09-30 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 26 | 87 | 1988 | 58 |
| 35 C (95 F): Days | 26 | 42 | 1988 | 15 |
| 40 C (104 F): Days | 6 | 3 | 1966 | 2 |
| 90 F (32.2 C): Days | 26 | 63 | 1988 | 40 |
| 100 F (37.8 C): Days | 19 | 17 | 1988 | 4 |
| 110 F (43.3 C): Days | 1 | 1 | 1966 | 1 |
| 0 C (32 F): Ice days (max | 26 | 85 | 1978 | 42 |
| 0 C (32 F): Frost days (min | 25 | 197 | 1970 | 152 |
| -10 C (14 F): Days with min | 25 | 89 | 1978 | 62 |
| -20 C (-4 F): Days with min | 25 | 29 | 1978 | 22 |
| -30 C (-22 F): Days with min | 12 | 5 | 1972 | 5 |
| -40 C (-40 F): Days with min | 1 | 1 | 1983 | 1 |
| 20 C (68 F): Tropical nights (min | 16 | 15 | 1988 | 6 |
| 25 C (77 F): Days with min | 2 | 2 | 1983 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 27 | 19 | 1976 | 12 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 25 | 6 | 1973 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 9 | 2 | 1978 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1962.
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).