Rota NAS Threshold Days by Year (SPW00013025)
14 fixed thresholds counted per year at Rota NAS (SPW00013025): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Rota NAS Thresholds
- Rota NAS: days with a maximum temperature at or above 30 C (86 F) in 44 years, most in 1964 with 84.
- Rota NAS: days with a maximum temperature at or above 90 F (32.2 C) in 44 years, most in 1964 with 55.
- Rota NAS: nights with a minimum temperature at or above 20 C (68 F) in 44 years, most in 2025 with 86.
- Rota NAS: days with a maximum temperature at or above 35 C (95 F) in 43 years, most in 1991 with 30.
- 14 fixed thresholds have at least one qualifying day at Rota NAS.
Days at or above 30 C (86 F)
44 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1959 | 30 | 30 |
| 1960 | 40 | 44.7 |
| 1961 | 51 | 44.7 |
| 1962 | 47 | 44.7 |
| 1963 | 44 | 44.7 |
| 1964 | 84 | 44.7 |
| 1965 | 37 | 44.7 |
| 1966 | 51 | 44.7 |
| 1967 | 32 | 44.7 |
| 1968 | 31 | 44.7 |
| 1969 | 30 | 44.7 |
| 1970 | 58 | 44.1 |
| 1971 | 35 | 44.1 |
| 1972 | 26 | 44.1 |
| 1973 | 40 | 44.1 |
| 1974 | 54 | 44.1 |
| 1975 | 36 | 44.1 |
| 1976 | 51 | 44.1 |
| 1977 | 39 | 44.1 |
| 1978 | 44 | 44.1 |
| 1979 | 58 | 44.1 |
| 1980 | 62 | 57.9 |
| 1981 | 62 | 57.9 |
| 1982 | 59 | 57.9 |
| 1983 | 47 | 57.9 |
| 1984 | 52 | 57.9 |
| 1985 | 45 | 57.9 |
| 1986 | 60 | 57.9 |
| 1987 | 52 | 57.9 |
| 1988 | 71 | 57.9 |
| 1989 | 69 | 57.9 |
| 1990 | 63 | 47.1 |
| 1991 | 62 | 47.1 |
| 1992 | 55 | 47.1 |
| 1993 | 33 | 47.1 |
| 1994 | 38 | 47.1 |
| 1995 | 32 | 47.1 |
| 1996 | 48 | 47.1 |
| 1997 | 45 | 47.1 |
| 1998 | 48 | 47.1 |
| 2001 | 40 | 32.5 |
| 2002 | 25 | 32.5 |
| 2025 | 56 | 54.5 |
| 2026 | 53 | 54.5 |
| Year | First date | Last date |
|---|---|---|
| 1959 | 1959-06-10 | 1959-09-08 |
| 1960 | 1960-05-24 | 1960-09-14 |
| 1961 | 1961-05-14 | 1961-09-26 |
| 1962 | 1962-05-07 | 1962-10-05 |
| 1963 | 1963-05-15 | 1963-10-09 |
| 1964 | 1964-04-25 | 1964-10-05 |
| 1965 | 1965-04-17 | 1965-09-21 |
| 1966 | 1966-05-05 | 1966-09-21 |
| 1967 | 1967-05-26 | 1967-09-10 |
| 1968 | 1968-06-25 | 1968-09-26 |
| 1969 | 1969-05-10 | 1969-08-29 |
| 1970 | 1970-05-22 | 1970-10-03 |
| 1971 | 1971-06-19 | 1971-10-13 |
| 1972 | 1972-05-10 | 1972-09-01 |
| 1973 | 1973-05-13 | 1973-09-26 |
| 1974 | 1974-05-14 | 1974-10-01 |
| 1975 | 1975-06-19 | 1975-09-12 |
| 1976 | 1976-05-31 | 1976-10-07 |
| 1977 | 1977-05-10 | 1977-10-01 |
| 1978 | 1978-06-28 | 1978-09-26 |
| 1979 | 1979-05-12 | 1979-09-25 |
| 1980 | 1980-04-02 | 1980-10-05 |
| 1981 | 1981-06-05 | 1981-10-20 |
| 1982 | 1982-05-21 | 1982-10-03 |
| 1983 | 1983-05-24 | 1983-10-20 |
| 1984 | 1984-06-10 | 1984-09-19 |
| 1985 | 1985-06-10 | 1985-10-01 |
| 1986 | 1986-05-09 | 1986-10-09 |
| 1987 | 1987-06-05 | 1987-09-29 |
| 1988 | 1988-05-21 | 1988-10-09 |
| 1989 | 1989-04-30 | 1989-10-07 |
| 1990 | 1990-05-26 | 1990-10-06 |
| 1991 | 1991-05-24 | 1991-10-06 |
| 1992 | 1992-04-27 | 1992-10-02 |
| 1993 | 1993-05-31 | 1993-09-01 |
| 1994 | 1994-06-04 | 1994-09-18 |
| 1995 | 1995-05-28 | 1995-10-30 |
| 1996 | 1996-05-26 | 1996-09-29 |
| 1997 | 1997-04-04 | 1997-10-12 |
| 1998 | 1998-06-08 | 1998-09-16 |
| 2001 | 2001-05-25 | 2001-10-31 |
| 2002 | 2002-05-19 | 2002-08-13 |
| 2025 | 2025-05-27 | 2025-10-02 |
| 2026 | 2026-05-20 | 2026-09-26 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 44 | 84 | 1964 | 53 |
| 35 C (95 F): Days | 43 | 30 | 1991 | 14 |
| 40 C (104 F): Days | 13 | 4 | 1964 | 2 |
| 45 C (113 F): Days | 1 | 1 | 1982 | 1 |
| 90 F (32.2 C): Days | 44 | 55 | 1964 | 25 |
| 100 F (37.8 C): Days | 29 | 9 | 1964 | 1 |
| 110 F (43.3 C): Days | 1 | 1 | 1982 | 1 |
| 0 C (32 F): Frost days (min | 21 | 5 | 1970 | 1 |
| 20 C (68 F): Tropical nights (min | 44 | 86 | 2025 | 96 |
| 25 C (77 F): Days with min | 15 | 7 | 2025 | 4 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 42 | 42 | 1996 | 18 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 42 | 14 | 1996 | 5 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 15 | 4 | 1962 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 2 | 1 | 1996 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1959.
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).