Onahama Threshold Days by Year (JA000047598)
13 fixed thresholds counted per year at Onahama (JA000047598): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Onahama Thresholds
- Onahama: days with a maximum temperature at or above 30 C (86 F) in 61 years, most in 1978 with 52.
- Onahama: days with 10 mm (0.39 in) or more of precipitation in 54 years, most in 1976 with 54.
- Onahama: days with 25 mm (0.98 in) or more of precipitation in 54 years, most in 2021 with 26.
- Onahama: days with 50 mm (1.97 in) or more of precipitation in 53 years, most in 2006 with 11.
- 13 fixed thresholds have at least one qualifying day at Onahama.
Days at or above 30 C (86 F)
61 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1951 | 12 | 5 |
| 1952 | 3 | 5 |
| 1953 | 3 | 5 |
| 1954 | 6 | 5 |
| 1955 | 7 | 5 |
| 1956 | 7 | 5 |
| 1957 | 3 | 5 |
| 1958 | 3 | 5 |
| 1959 | 1 | 5 |
| 1960 | 5 | 4.8 |
| 1961 | 8 | 4.8 |
| 1962 | 7 | 4.8 |
| 1963 | 2 | 4.8 |
| 1964 | 8 | 4.8 |
| 1965 | 5 | 4.8 |
| 1966 | 2 | 4.8 |
| 1967 | 7 | 4.8 |
| 1968 | 3 | 4.8 |
| 1969 | 1 | 4.8 |
| 1970 | 3 | 10.1 |
| 1971 | 5 | 10.1 |
| 1972 | 4 | 10.1 |
| 1973 | 8 | 10.1 |
| 1974 | 1 | 10.1 |
| 1975 | 3 | 10.1 |
| 1976 | 1 | 10.1 |
| 1977 | 14 | 10.1 |
| 1978 | 52 | 10.1 |
| 1979 | 10 | 10.1 |
| 1980 | 1 | 5.4 |
| 1981 | 1 | 5.4 |
| 1982 | 2 | 5.4 |
| 1983 | 8 | 5.4 |
| 1984 | 12 | 5.4 |
| 1985 | 10 | 5.4 |
| 1986 | 5 | 5.4 |
| 1987 | 10 | 5.4 |
| 1988 | 1 | 5.4 |
| 1989 | 4 | 5.4 |
| 1990 | 13 | 11.9 |
| 1991 | 11 | 11.9 |
| 1992 | 5 | 11.9 |
| 1994 | 12 | 11.9 |
| 1995 | 17 | 11.9 |
| 1996 | 7 | 11.9 |
| 1999 | 18 | 11.9 |
| 2000 | 11 | 8.2 |
| 2001 | 11 | 8.2 |
| 2002 | 9 | 8.2 |
| 2006 | 5 | 8.2 |
| 2007 | 7 | 8.2 |
| 2008 | 6 | 8.2 |
| 2014 | 9 | 11.4 |
| 2015 | 11 | 11.4 |
| 2017 | 5 | 11.4 |
| 2018 | 19 | 11.4 |
| 2019 | 13 | 11.4 |
| 2021 | 6 | 12.3 |
| 2022 | 15 | 12.3 |
| 2025 | 24 | 12.3 |
| 2026 | 4 | 12.3 |
| Year | First date | Last date |
|---|---|---|
| 1951 | 1951-07-28 | 1951-08-27 |
| 1952 | 1952-08-20 | 1952-09-05 |
| 1953 | 1953-08-02 | 1953-08-21 |
| 1954 | 1954-08-09 | 1954-08-29 |
| 1955 | 1955-07-20 | 1955-08-10 |
| 1956 | 1956-07-30 | 1956-09-03 |
| 1957 | 1957-07-05 | 1957-08-25 |
| 1958 | 1958-08-01 | 1958-09-07 |
| 1959 | 1959-09-27 | 1959-09-27 |
| 1960 | 1960-06-28 | 1960-08-31 |
| 1961 | 1961-07-15 | 1961-09-06 |
| 1962 | 1962-07-22 | 1962-09-09 |
| 1963 | 1963-08-13 | 1963-08-16 |
| 1964 | 1964-07-26 | 1964-08-26 |
| 1965 | 1965-08-13 | 1965-08-26 |
| 1966 | 1966-07-31 | 1966-09-02 |
| 1967 | 1967-08-04 | 1967-08-17 |
| 1968 | 1968-08-06 | 1968-08-19 |
| 1969 | 1969-09-02 | 1969-09-02 |
| 1970 | 1970-07-12 | 1970-09-03 |
| 1971 | 1971-07-10 | 1971-08-12 |
| 1972 | 1972-06-10 | 1972-09-17 |
| 1973 | 1973-07-08 | 1973-08-30 |
| 1974 | 1974-08-02 | 1974-08-02 |
| 1975 | 1975-07-18 | 1975-09-09 |
| 1976 | 1976-08-11 | 1976-08-11 |
| 1977 | 1977-07-03 | 1977-09-20 |
| 1978 | 1978-07-05 | 1978-10-04 |
| 1979 | 1979-07-31 | 1979-10-01 |
| 1980 | 1980-08-24 | 1980-08-24 |
| 1981 | 1981-08-05 | 1981-08-05 |
| 1982 | 1982-07-12 | 1982-08-23 |
| 1983 | 1983-07-28 | 1983-09-13 |
| 1984 | 1984-08-03 | 1984-09-10 |
| 1985 | 1985-07-01 | 1985-09-08 |
| 1986 | 1986-07-18 | 1986-09-11 |
| 1987 | 1987-07-23 | 1987-08-27 |
| 1988 | 1988-08-24 | 1988-08-24 |
| 1989 | 1989-08-10 | 1989-09-28 |
| 1990 | 1990-06-17 | 1990-09-20 |
| 1991 | 1991-06-27 | 1991-09-28 |
| 1992 | 1992-07-19 | 1992-09-11 |
| 1994 | 1994-07-03 | 1994-09-01 |
| 1995 | 1995-07-23 | 1995-09-11 |
| 1996 | 1996-07-11 | 1996-09-02 |
| 1999 | 1999-07-04 | 1999-09-25 |
| 2000 | 2000-07-22 | 2000-09-03 |
| 2001 | 2001-06-04 | 2001-08-23 |
| 2002 | 2002-07-11 | 2002-09-04 |
| 2006 | 2006-07-14 | 2006-09-05 |
| 2007 | 2007-08-05 | 2007-09-22 |
| 2008 | 2008-08-04 | 2008-08-20 |
| 2014 | 2014-07-11 | 2014-08-21 |
| 2015 | 2015-07-26 | 2015-09-02 |
| 2017 | 2017-08-09 | 2017-09-18 |
| 2018 | 2018-06-25 | 2018-10-07 |
| 2019 | 2019-07-30 | 2019-09-24 |
| 2021 | 2021-07-25 | 2021-08-27 |
| 2022 | 2022-06-25 | 2022-08-19 |
| 2025 | 2025-06-16 | 2025-09-21 |
| 2026 | 2026-08-25 | 2026-09-22 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 61 | 52 | 1978 | 4 |
| 35 C (95 F): Days | 7 | 3 | 1978 | 1 |
| 90 F (32.2 C): Days | 40 | 14 | 1978 | 8 |
| 0 C (32 F): Ice days (max | 3 | 1 | 1952 | 1 |
| 0 C (32 F): Frost days (min | 38 | 99 | 1984 | 22 |
| -10 C (14 F): Days with min | 1 | 1 | 1952 | 1 |
| 20 C (68 F): Tropical nights (min | 38 | 96 | 2025 | 71 |
| 25 C (77 F): Days with min | 7 | 16 | 2025 | 4 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 54 | 54 | 1976 | 23 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 54 | 26 | 2021 | 13 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 53 | 11 | 2006 | 7 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 27 | 3 | 1971 | 5 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 4 | 1 | 1966 | 3 |
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).