Miyakejima Threshold Days by Year (JA000047677)
10 fixed thresholds counted per year at Miyakejima (JA000047677): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Miyakejima Thresholds
- Miyakejima: days with 10 mm (0.39 in) or more of precipitation in 56 years, most in 1959 with 99.
- Miyakejima: days with 25 mm (0.98 in) or more of precipitation in 56 years, most in 1959 with 49.
- Miyakejima: days with 50 mm (1.97 in) or more of precipitation in 56 years, most in 1954 with 22.
- Miyakejima: days with 100 mm (3.94 in) or more of precipitation in 56 years, most in 1979 with 11.
- 10 fixed thresholds have at least one qualifying day at Miyakejima.
Days at or above 30 C (86 F)
40 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1951 | 17 | 8.9 |
| 1952 | 16 | 8.9 |
| 1953 | 8 | 8.9 |
| 1954 | 9 | 8.9 |
| 1955 | 3 | 8.9 |
| 1956 | 13 | 8.9 |
| 1957 | 7 | 8.9 |
| 1958 | 1 | 8.9 |
| 1959 | 6 | 8.9 |
| 1960 | 16 | 10.9 |
| 1961 | 37 | 10.9 |
| 1962 | 4 | 10.9 |
| 1963 | 3 | 10.9 |
| 1964 | 6 | 10.9 |
| 1965 | 3 | 10.9 |
| 1966 | 16 | 10.9 |
| 1967 | 8 | 10.9 |
| 1969 | 5 | 10.9 |
| 1970 | 6 | 6.7 |
| 1971 | 11 | 6.7 |
| 1972 | 2 | 6.7 |
| 1973 | 1 | 6.7 |
| 1974 | 3 | 6.7 |
| 1975 | 8 | 6.7 |
| 1976 | 7 | 6.7 |
| 1977 | 4 | 6.7 |
| 1978 | 18 | 6.7 |
| 1979 | 7 | 6.7 |
| 1980 | 6 | 5.9 |
| 1981 | 11 | 5.9 |
| 1982 | 2 | 5.9 |
| 1983 | 9 | 5.9 |
| 1984 | 11 | 5.9 |
| 1985 | 5 | 5.9 |
| 1986 | 3 | 5.9 |
| 1987 | 9 | 5.9 |
| 1988 | 1 | 5.9 |
| 1989 | 2 | 5.9 |
| 2025 | 43 | 31.5 |
| 2026 | 20 | 31.5 |
| Year | First date | Last date |
|---|---|---|
| 1951 | 1951-07-24 | 1951-08-28 |
| 1952 | 1952-07-14 | 1952-09-15 |
| 1953 | 1953-07-26 | 1953-08-22 |
| 1954 | 1954-08-09 | 1954-09-08 |
| 1955 | 1955-07-12 | 1955-08-03 |
| 1956 | 1956-07-30 | 1956-09-10 |
| 1957 | 1957-07-31 | 1957-08-25 |
| 1958 | 1958-08-15 | 1958-08-15 |
| 1959 | 1959-07-31 | 1959-08-31 |
| 1960 | 1960-07-21 | 1960-09-03 |
| 1961 | 1961-07-10 | 1961-09-23 |
| 1962 | 1962-08-06 | 1962-08-24 |
| 1963 | 1963-07-27 | 1963-08-10 |
| 1964 | 1964-07-30 | 1964-08-17 |
| 1965 | 1965-08-02 | 1965-08-13 |
| 1966 | 1966-07-21 | 1966-09-09 |
| 1967 | 1967-07-28 | 1967-08-22 |
| 1969 | 1969-08-02 | 1969-08-24 |
| 1970 | 1970-07-27 | 1970-08-16 |
| 1971 | 1971-07-30 | 1971-08-29 |
| 1972 | 1972-08-18 | 1972-09-01 |
| 1973 | 1973-08-17 | 1973-08-17 |
| 1974 | 1974-08-12 | 1974-08-27 |
| 1975 | 1975-07-28 | 1975-08-17 |
| 1976 | 1976-08-14 | 1976-09-11 |
| 1977 | 1977-07-14 | 1977-09-11 |
| 1978 | 1978-07-11 | 1978-08-23 |
| 1979 | 1979-08-06 | 1979-08-27 |
| 1980 | 1980-07-22 | 1980-09-12 |
| 1981 | 1981-07-11 | 1981-08-21 |
| 1982 | 1982-08-26 | 1982-08-28 |
| 1983 | 1983-07-31 | 1983-09-01 |
| 1984 | 1984-07-05 | 1984-08-21 |
| 1985 | 1985-08-07 | 1985-08-31 |
| 1986 | 1986-07-31 | 1986-08-30 |
| 1987 | 1987-07-30 | 1987-09-09 |
| 1988 | 1988-08-05 | 1988-08-05 |
| 1989 | 1989-08-22 | 1989-09-06 |
| 2025 | 2025-07-05 | 2025-09-18 |
| 2026 | 2026-07-14 | 2026-09-09 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 40 | 43 | 2025 | 20 |
| 90 F (32.2 C): Days | 4 | 1 | 1952 | 1 |
| 0 C (32 F): Frost days (min | 13 | 7 | 1981 | 3 |
| 20 C (68 F): Tropical nights (min | 41 | 133 | 2025 | 126 |
| 25 C (77 F): Days with min | 41 | 52 | 2025 | 28 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 56 | 99 | 1959 | 14 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 56 | 49 | 1959 | 14 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 56 | 22 | 1954 | 12 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 56 | 11 | 1979 | 10 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 16 | 3 | 1979 | 6 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1951.
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).