Oshima Threshold Days by Year (JA000047675)
10 fixed thresholds counted per year at Oshima (JA000047675): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Oshima Thresholds
- Oshima: days with 10 mm (0.39 in) or more of precipitation in 59 years, most in 1954 with 92.
- Oshima: days with 25 mm (0.98 in) or more of precipitation in 59 years, most in 1954 with 58.
- Oshima: days with 50 mm (1.97 in) or more of precipitation in 59 years, most in 1954 with 26.
- Oshima: days with 100 mm (3.94 in) or more of precipitation in 58 years, most in 1951 with 8.
- 10 fixed thresholds have at least one qualifying day at Oshima.
Days at or above 30 C (86 F)
50 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1951 | 7 | 5.3 |
| 1952 | 5 | 5.3 |
| 1953 | 7 | 5.3 |
| 1954 | 7 | 5.3 |
| 1956 | 8 | 5.3 |
| 1957 | 2 | 5.3 |
| 1959 | 1 | 5.3 |
| 1960 | 3 | 5.3 |
| 1961 | 6 | 5.3 |
| 1962 | 2 | 5.3 |
| 1964 | 8 | 5.3 |
| 1965 | 6 | 5.3 |
| 1966 | 5 | 5.3 |
| 1967 | 6 | 5.3 |
| 1969 | 6 | 5.3 |
| 1970 | 1 | 2.1 |
| 1971 | 3 | 2.1 |
| 1972 | 1 | 2.1 |
| 1973 | 1 | 2.1 |
| 1975 | 1 | 2.1 |
| 1977 | 2 | 2.1 |
| 1978 | 7 | 2.1 |
| 1979 | 1 | 2.1 |
| 1981 | 2 | 4.3 |
| 1982 | 1 | 4.3 |
| 1983 | 9 | 4.3 |
| 1984 | 9 | 4.3 |
| 1985 | 4 | 4.3 |
| 1986 | 2 | 4.3 |
| 1987 | 4 | 4.3 |
| 1988 | 3 | 4.3 |
| 1990 | 5 | 18.1 |
| 1991 | 7 | 18.1 |
| 1992 | 12 | 18.1 |
| 1993 | 1 | 18.1 |
| 1994 | 45 | 18.1 |
| 1995 | 25 | 18.1 |
| 1997 | 16 | 18.1 |
| 1999 | 34 | 18.1 |
| 2000 | 23 | 24 |
| 2001 | 27 | 24 |
| 2005 | 18 | 24 |
| 2007 | 27 | 24 |
| 2008 | 40 | 24 |
| 2009 | 9 | 24 |
| 2010 | 47 | 45.3 |
| 2011 | 41 | 45.3 |
| 2012 | 48 | 45.3 |
| 2025 | 45 | 35.5 |
| 2026 | 26 | 35.5 |
| Year | First date | Last date |
|---|---|---|
| 1951 | 1951-08-07 | 1951-08-26 |
| 1952 | 1952-08-25 | 1952-08-31 |
| 1953 | 1953-07-26 | 1953-08-22 |
| 1954 | 1954-08-09 | 1954-08-24 |
| 1956 | 1956-07-21 | 1956-08-09 |
| 1957 | 1957-07-31 | 1957-08-01 |
| 1959 | 1959-08-31 | 1959-08-31 |
| 1960 | 1960-07-15 | 1960-08-27 |
| 1961 | 1961-07-09 | 1961-08-25 |
| 1962 | 1962-08-04 | 1962-08-16 |
| 1964 | 1964-07-03 | 1964-08-15 |
| 1965 | 1965-07-16 | 1965-08-24 |
| 1966 | 1966-07-27 | 1966-08-11 |
| 1967 | 1967-07-15 | 1967-08-17 |
| 1969 | 1969-08-07 | 1969-08-15 |
| 1970 | 1970-09-13 | 1970-09-13 |
| 1971 | 1971-07-12 | 1971-08-28 |
| 1972 | 1972-08-04 | 1972-08-04 |
| 1973 | 1973-08-20 | 1973-08-20 |
| 1975 | 1975-07-18 | 1975-07-18 |
| 1977 | 1977-07-15 | 1977-08-04 |
| 1978 | 1978-07-05 | 1978-08-31 |
| 1979 | 1979-08-17 | 1979-08-17 |
| 1981 | 1981-08-01 | 1981-08-11 |
| 1982 | 1982-08-29 | 1982-08-29 |
| 1983 | 1983-07-26 | 1983-09-06 |
| 1984 | 1984-08-07 | 1984-08-19 |
| 1985 | 1985-08-03 | 1985-08-29 |
| 1986 | 1986-07-31 | 1986-08-05 |
| 1987 | 1987-07-28 | 1987-08-30 |
| 1988 | 1988-08-08 | 1988-09-16 |
| 1990 | 1990-08-05 | 1990-08-12 |
| 1991 | 1991-06-27 | 1991-09-07 |
| 1992 | 1992-07-20 | 1992-09-05 |
| 1993 | 1993-08-24 | 1993-08-24 |
| 1994 | 1994-07-04 | 1994-09-11 |
| 1995 | 1995-07-26 | 1995-09-01 |
| 1997 | 1997-08-13 | 1997-09-12 |
| 1999 | 1999-07-21 | 1999-09-10 |
| 2000 | 2000-07-19 | 2000-09-12 |
| 2001 | 2001-06-26 | 2001-08-28 |
| 2005 | 2005-07-27 | 2005-09-11 |
| 2007 | 2007-07-27 | 2007-09-21 |
| 2008 | 2008-07-15 | 2008-09-04 |
| 2009 | 2009-07-14 | 2009-08-20 |
| 2010 | 2010-07-04 | 2010-09-21 |
| 2011 | 2011-06-29 | 2011-09-19 |
| 2012 | 2012-07-16 | 2012-09-17 |
| 2025 | 2025-06-19 | 2025-09-11 |
| 2026 | 2026-07-14 | 2026-09-08 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 50 | 48 | 2012 | 26 |
| 90 F (32.2 C): Days | 18 | 12 | 2008 | 5 |
| 0 C (32 F): Frost days (min | 35 | 18 | 1984 | 2 |
| 20 C (68 F): Tropical nights (min | 41 | 115 | 2025 | 99 |
| 25 C (77 F): Days with min | 16 | 51 | 2025 | 16 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 59 | 92 | 1954 | 45 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 59 | 58 | 1954 | 33 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 59 | 26 | 1954 | 20 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 58 | 8 | 1951 | 8 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 22 | 2 | 1963 | 2 |
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).