Iizuka Threshold Days by Year (JA000047809)
12 fixed thresholds counted per year at Iizuka (JA000047809): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Iizuka Thresholds
- Iizuka: days with a maximum temperature at or above 30 C (86 F) in 68 years, most in 2005 with 84.
- Iizuka: days with a maximum temperature at or above 90 F (32.2 C) in 68 years, most in 2025 with 64.
- Iizuka: days with 10 mm (0.39 in) or more of precipitation in 53 years, most in 1972 with 72.
- Iizuka: days with 25 mm (0.98 in) or more of precipitation in 53 years, most in 1980 with 38.
- 12 fixed thresholds have at least one qualifying day at Iizuka.
Days at or above 30 C (86 F)
68 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1951 | 49 | 56.2 |
| 1952 | 61 | 56.2 |
| 1953 | 59 | 56.2 |
| 1954 | 44 | 56.2 |
| 1955 | 66 | 56.2 |
| 1956 | 54 | 56.2 |
| 1957 | 39 | 56.2 |
| 1958 | 66 | 56.2 |
| 1959 | 68 | 56.2 |
| 1960 | 69 | 62 |
| 1961 | 80 | 62 |
| 1962 | 58 | 62 |
| 1963 | 55 | 62 |
| 1964 | 70 | 62 |
| 1965 | 43 | 62 |
| 1966 | 63 | 62 |
| 1967 | 76 | 62 |
| 1968 | 46 | 62 |
| 1969 | 60 | 62 |
| 1970 | 56 | 57.1 |
| 1971 | 55 | 57.1 |
| 1972 | 53 | 57.1 |
| 1973 | 59 | 57.1 |
| 1974 | 43 | 57.1 |
| 1975 | 68 | 57.1 |
| 1976 | 39 | 57.1 |
| 1977 | 55 | 57.1 |
| 1978 | 82 | 57.1 |
| 1979 | 61 | 57.1 |
| 1980 | 25 | 50.1 |
| 1981 | 63 | 50.1 |
| 1982 | 49 | 50.1 |
| 1983 | 43 | 50.1 |
| 1984 | 60 | 50.1 |
| 1985 | 63 | 50.1 |
| 1986 | 55 | 50.1 |
| 1987 | 49 | 50.1 |
| 1988 | 45 | 50.1 |
| 1989 | 49 | 50.1 |
| 1994 | 74 | 61 |
| 1995 | 58 | 61 |
| 1996 | 53 | 61 |
| 1997 | 60 | 61 |
| 1998 | 75 | 61 |
| 1999 | 46 | 61 |
| 2000 | 69 | 64.6 |
| 2002 | 68 | 64.6 |
| 2003 | 44 | 64.6 |
| 2004 | 65 | 64.6 |
| 2005 | 84 | 64.6 |
| 2006 | 55 | 64.6 |
| 2007 | 76 | 64.6 |
| 2008 | 64 | 64.6 |
| 2009 | 56 | 64.6 |
| 2010 | 71 | 61.8 |
| 2011 | 72 | 61.8 |
| 2012 | 61 | 61.8 |
| 2013 | 72 | 61.8 |
| 2014 | 44 | 61.8 |
| 2015 | 39 | 61.8 |
| 2016 | 70 | 61.8 |
| 2017 | 67 | 61.8 |
| 2018 | 73 | 61.8 |
| 2019 | 49 | 61.8 |
| 2021 | 69 | 73 |
| 2022 | 81 | 73 |
| 2025 | 80 | 73 |
| 2026 | 62 | 73 |
| Year | First date | Last date |
|---|---|---|
| 1951 | 1951-05-24 | 1951-09-13 |
| 1952 | 1952-05-14 | 1952-09-25 |
| 1953 | 1953-05-26 | 1953-09-18 |
| 1954 | 1954-07-03 | 1954-09-23 |
| 1955 | 1955-06-13 | 1955-09-22 |
| 1956 | 1956-06-04 | 1956-09-24 |
| 1957 | 1957-05-31 | 1957-08-31 |
| 1958 | 1958-05-28 | 1958-09-16 |
| 1959 | 1959-06-15 | 1959-09-24 |
| 1960 | 1960-05-17 | 1960-09-24 |
| 1961 | 1961-05-27 | 1961-10-05 |
| 1962 | 1962-05-21 | 1962-10-03 |
| 1963 | 1963-06-21 | 1963-09-16 |
| 1964 | 1964-06-18 | 1964-09-18 |
| 1965 | 1965-06-06 | 1965-08-30 |
| 1966 | 1966-06-22 | 1966-09-12 |
| 1967 | 1967-05-18 | 1967-09-11 |
| 1968 | 1968-06-05 | 1968-09-19 |
| 1969 | 1969-05-09 | 1969-09-25 |
| 1970 | 1970-05-18 | 1970-09-16 |
| 1971 | 1971-05-21 | 1971-09-25 |
| 1972 | 1972-06-10 | 1972-09-15 |
| 1973 | 1973-06-25 | 1973-08-31 |
| 1974 | 1974-05-28 | 1974-09-07 |
| 1975 | 1975-06-14 | 1975-09-23 |
| 1976 | 1976-07-12 | 1976-09-08 |
| 1977 | 1977-06-04 | 1977-09-14 |
| 1978 | 1978-05-27 | 1978-09-18 |
| 1979 | 1979-05-21 | 1979-09-24 |
| 1980 | 1980-06-05 | 1980-09-15 |
| 1981 | 1981-05-10 | 1981-09-02 |
| 1982 | 1982-05-12 | 1982-09-02 |
| 1983 | 1983-05-31 | 1983-09-10 |
| 1984 | 1984-06-01 | 1984-09-02 |
| 1985 | 1985-06-21 | 1985-09-19 |
| 1986 | 1986-05-18 | 1986-09-07 |
| 1987 | 1987-05-25 | 1987-09-15 |
| 1988 | 1988-05-18 | 1988-09-19 |
| 1989 | 1989-07-07 | 1989-09-17 |
| 1994 | 1994-06-03 | 1994-09-10 |
| 1995 | 1995-06-02 | 1995-09-09 |
| 1996 | 1996-06-02 | 1996-09-19 |
| 1997 | 1997-05-06 | 1997-09-13 |
| 1998 | 1998-04-29 | 1998-09-30 |
| 1999 | 1999-06-06 | 1999-10-11 |
| 2000 | 2000-05-24 | 2000-09-15 |
| 2002 | 2002-06-02 | 2002-10-05 |
| 2003 | 2003-05-29 | 2003-09-18 |
| 2004 | 2004-05-28 | 2004-09-20 |
| 2005 | 2005-04-30 | 2005-10-07 |
| 2006 | 2006-06-16 | 2006-09-09 |
| 2007 | 2007-05-27 | 2007-10-04 |
| 2008 | 2008-05-27 | 2008-09-25 |
| 2009 | 2009-05-09 | 2009-09-27 |
| 2010 | 2010-05-21 | 2010-09-22 |
| 2011 | 2011-05-09 | 2011-09-18 |
| 2012 | 2012-06-07 | 2012-09-17 |
| 2013 | 2013-05-13 | 2013-09-24 |
| 2014 | 2014-05-24 | 2014-09-10 |
| 2015 | 2015-05-26 | 2015-08-28 |
| 2016 | 2016-05-15 | 2016-10-03 |
| 2017 | 2017-05-19 | 2017-09-10 |
| 2018 | 2018-04-21 | 2018-09-19 |
| 2019 | 2019-05-24 | 2019-10-02 |
| 2021 | 2021-05-23 | 2021-10-11 |
| 2022 | 2022-05-28 | 2022-10-04 |
| 2025 | 2025-05-20 | 2025-10-13 |
| 2026 | 2026-05-17 | 2026-09-03 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 68 | 84 | 2005 | 62 |
| 35 C (95 F): Days | 52 | 28 | 1994 | 23 |
| 90 F (32.2 C): Days | 68 | 64 | 2025 | 51 |
| 0 C (32 F): Ice days (max | 10 | 1 | 1963 | 1 |
| 0 C (32 F): Frost days (min | 41 | 67 | 1984 | 17 |
| 20 C (68 F): Tropical nights (min | 41 | 118 | 2025 | 106 |
| 25 C (77 F): Days with min | 41 | 55 | 2025 | 52 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 53 | 72 | 1972 | 30 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 53 | 38 | 1980 | 23 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 53 | 16 | 1980 | 14 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 38 | 6 | 1953 | 7 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 10 | 1 | 1953 | 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).