Ikej Threshold Days by Year (RSM00030507)
3 fixed thresholds counted per year at Ikej (RSM00030507): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Ikej Thresholds
- Ikej: days with 10 mm (0.39 in) or more of precipitation in 59 years, most in 1946 with 20.
- Ikej: days with 25 mm (0.98 in) or more of precipitation in 52 years, most in 1938 with 5.
- Ikej: days with 50 mm (1.97 in) or more of precipitation in 7 years, most in 1946 with 1.
- 3 fixed thresholds have at least one qualifying day at Ikej.
Days with 10 mm (0.39 in) or more of precipitation
59 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1937 | 12 | 13.3 |
| 1938 | 16 | 13.3 |
| 1939 | 12 | 13.3 |
| 1940 | 19 | 13.6 |
| 1941 | 13 | 13.6 |
| 1942 | 10 | 13.6 |
| 1943 | 8 | 13.6 |
| 1944 | 15 | 13.6 |
| 1945 | 6 | 13.6 |
| 1946 | 20 | 13.6 |
| 1947 | 16 | 13.6 |
| 1948 | 16 | 13.6 |
| 1949 | 13 | 13.6 |
| 1950 | 11 | 9.3 |
| 1951 | 6 | 9.3 |
| 1952 | 14 | 9.3 |
| 1953 | 10 | 9.3 |
| 1954 | 8 | 9.3 |
| 1955 | 11 | 9.3 |
| 1956 | 5 | 9.3 |
| 1957 | 7 | 9.3 |
| 1958 | 8 | 9.3 |
| 1959 | 13 | 9.3 |
| 1960 | 13 | 10.1 |
| 1961 | 11 | 10.1 |
| 1962 | 12 | 10.1 |
| 1963 | 9 | 10.1 |
| 1964 | 10 | 10.1 |
| 1965 | 7 | 10.1 |
| 1966 | 15 | 10.1 |
| 1967 | 7 | 10.1 |
| 1968 | 9 | 10.1 |
| 1969 | 8 | 10.1 |
| 1970 | 12 | 9.6 |
| 1971 | 7 | 9.6 |
| 1972 | 11 | 9.6 |
| 1973 | 6 | 9.6 |
| 1974 | 10 | 9.6 |
| 1975 | 14 | 9.6 |
| 1976 | 9 | 9.6 |
| 1977 | 9 | 9.6 |
| 1978 | 8 | 9.6 |
| 1979 | 10 | 9.6 |
| 1980 | 13 | 12 |
| 1981 | 10 | 12 |
| 1982 | 13 | 12 |
| 1983 | 13 | 12 |
| 1984 | 11 | 12 |
| 1985 | 13 | 12 |
| 1986 | 20 | 12 |
| 1987 | 8 | 12 |
| 1988 | 11 | 12 |
| 1989 | 8 | 12 |
| 1990 | 7 | 9.2 |
| 1991 | 11 | 9.2 |
| 1992 | 10 | 9.2 |
| 1994 | 9 | 9.2 |
| 1995 | 11 | 9.2 |
| 1996 | 7 | 9.2 |
| Year | First date | Last date |
|---|---|---|
| 1937 | 1937-04-09 | 1937-08-29 |
| 1938 | 1938-04-26 | 1938-11-07 |
| 1939 | 1939-06-11 | 1939-09-14 |
| 1940 | 1940-06-07 | 1940-09-20 |
| 1941 | 1941-04-14 | 1941-10-20 |
| 1942 | 1942-04-30 | 1942-09-09 |
| 1943 | 1943-07-01 | 1943-09-03 |
| 1944 | 1944-06-04 | 1944-11-21 |
| 1945 | 1945-06-19 | 1945-09-24 |
| 1946 | 1946-06-03 | 1946-09-07 |
| 1947 | 1947-06-07 | 1947-09-12 |
| 1948 | 1948-04-20 | 1948-10-09 |
| 1949 | 1949-05-13 | 1949-09-11 |
| 1950 | 1950-06-01 | 1950-08-27 |
| 1951 | 1951-06-15 | 1951-08-22 |
| 1952 | 1952-05-31 | 1952-09-18 |
| 1953 | 1953-06-29 | 1953-09-03 |
| 1954 | 1954-05-11 | 1954-09-03 |
| 1955 | 1955-05-22 | 1955-09-09 |
| 1956 | 1956-06-27 | 1956-10-20 |
| 1957 | 1957-04-16 | 1957-09-19 |
| 1958 | 1958-06-12 | 1958-09-20 |
| 1959 | 1959-04-29 | 1959-09-10 |
| 1960 | 1960-04-27 | 1960-10-15 |
| 1961 | 1961-07-03 | 1961-09-03 |
| 1962 | 1962-06-05 | 1962-09-15 |
| 1963 | 1963-06-04 | 1963-08-29 |
| 1964 | 1964-04-19 | 1964-09-08 |
| 1965 | 1965-05-04 | 1965-08-07 |
| 1966 | 1966-05-10 | 1966-10-09 |
| 1967 | 1967-06-15 | 1967-08-07 |
| 1968 | 1968-06-09 | 1968-09-11 |
| 1969 | 1969-05-02 | 1969-09-13 |
| 1970 | 1970-06-01 | 1970-09-25 |
| 1971 | 1971-01-03 | 1971-08-10 |
| 1972 | 1972-06-02 | 1972-08-20 |
| 1973 | 1973-07-03 | 1973-09-19 |
| 1974 | 1974-02-13 | 1974-10-01 |
| 1975 | 1975-04-20 | 1975-09-23 |
| 1976 | 1976-06-05 | 1976-08-18 |
| 1977 | 1977-06-07 | 1977-09-08 |
| 1978 | 1978-07-22 | 1978-08-26 |
| 1979 | 1979-06-19 | 1979-11-05 |
| 1980 | 1980-05-18 | 1980-09-02 |
| 1981 | 1981-06-14 | 1981-09-29 |
| 1982 | 1982-04-29 | 1982-08-27 |
| 1983 | 1983-05-20 | 1983-10-01 |
| 1984 | 1984-05-21 | 1984-09-20 |
| 1985 | 1985-01-27 | 1985-10-09 |
| 1986 | 1986-04-24 | 1986-09-20 |
| 1987 | 1987-06-03 | 1987-09-01 |
| 1988 | 1988-05-07 | 1988-09-04 |
| 1989 | 1989-05-30 | 1989-12-02 |
| 1990 | 1990-05-25 | 1990-09-27 |
| 1991 | 1991-06-22 | 1991-11-17 |
| 1992 | 1992-06-08 | 1992-11-27 |
| 1994 | 1994-06-13 | 1994-09-06 |
| 1995 | 1995-04-23 | 1995-11-30 |
| 1996 | 1996-05-30 | 1996-09-10 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 10 mm (0.39 in): Days with 10 mm or more rain | 59 | 20 | 1946 | 7 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 52 | 5 | 1938 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 7 | 1 | 1946 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1937.
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 (2025-12-31).