Gannapan Threshold Days by Year (SF001943230)
4 fixed thresholds counted per year at Gannapan (SF001943230): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Gannapan Thresholds
- Gannapan: days with 10 mm (0.39 in) or more of precipitation in 75 years, most in 1974 with 13.
- Gannapan: days with 25 mm (0.98 in) or more of precipitation in 62 years, most in 1972 with 6.
- Gannapan: days with 50 mm (1.97 in) or more of precipitation in 15 years, most in 1973 with 3.
- Gannapan: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1961 with 1.
- 4 fixed thresholds have at least one qualifying day at Gannapan.
Days with 10 mm (0.39 in) or more of precipitation
75 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1881 | 10 | 7 |
| 1882 | 4 | 7 |
| 1892 | 3 | 5.5 |
| 1893 | 6 | 5.5 |
| 1894 | 6 | 5.5 |
| 1895 | 6 | 5.5 |
| 1896 | 7 | 5.5 |
| 1897 | 3 | 5.5 |
| 1898 | 5 | 5.5 |
| 1899 | 8 | 5.5 |
| 1900 | 9 | 3.4 |
| 1901 | 4 | 3.4 |
| 1902 | 1 | 3.4 |
| 1904 | 2 | 3.4 |
| 1905 | 2 | 3.4 |
| 1906 | 6 | 3.4 |
| 1907 | 2 | 3.4 |
| 1908 | 1 | 3.4 |
| 1915 | 3 | 2.7 |
| 1916 | 1 | 2.7 |
| 1917 | 4 | 2.7 |
| 1924 | 11 | 7.8 |
| 1927 | 2 | 7.8 |
| 1928 | 9 | 7.8 |
| 1929 | 9 | 7.8 |
| 1930 | 5 | 6.6 |
| 1931 | 1 | 6.6 |
| 1932 | 5 | 6.6 |
| 1934 | 10 | 6.6 |
| 1935 | 6 | 6.6 |
| 1936 | 11 | 6.6 |
| 1937 | 4 | 6.6 |
| 1939 | 11 | 6.6 |
| 1940 | 7 | 7 |
| 1941 | 8 | 7 |
| 1942 | 6 | 7 |
| 1943 | 11 | 7 |
| 1944 | 3 | 7 |
| 1945 | 6 | 7 |
| 1946 | 10 | 7 |
| 1947 | 6 | 7 |
| 1948 | 8 | 7 |
| 1949 | 5 | 7 |
| 1950 | 12 | 6 |
| 1951 | 2 | 6 |
| 1952 | 4 | 6 |
| 1953 | 6 | 6 |
| 1954 | 5 | 6 |
| 1955 | 11 | 6 |
| 1956 | 5 | 6 |
| 1957 | 5 | 6 |
| 1958 | 5 | 6 |
| 1959 | 5 | 6 |
| 1960 | 2 | 5.9 |
| 1961 | 12 | 5.9 |
| 1962 | 2 | 5.9 |
| 1963 | 12 | 5.9 |
| 1964 | 6 | 5.9 |
| 1965 | 2 | 5.9 |
| 1966 | 2 | 5.9 |
| 1967 | 10 | 5.9 |
| 1968 | 6 | 5.9 |
| 1969 | 5 | 5.9 |
| 1970 | 8 | 8.1 |
| 1971 | 3 | 8.1 |
| 1972 | 7 | 8.1 |
| 1973 | 6 | 8.1 |
| 1974 | 13 | 8.1 |
| 1975 | 10 | 8.1 |
| 1976 | 11 | 8.1 |
| 1977 | 12 | 8.1 |
| 1978 | 3 | 8.1 |
| 1980 | 4 | 5.3 |
| 1981 | 8 | 5.3 |
| 1982 | 4 | 5.3 |
| Year | First date | Last date |
|---|---|---|
| 1881 | 1881-01-28 | 1881-07-24 |
| 1882 | 1882-02-13 | 1882-11-03 |
| 1892 | 1892-03-27 | 1892-10-20 |
| 1893 | 1893-01-19 | 1893-12-31 |
| 1894 | 1894-02-20 | 1894-12-12 |
| 1895 | 1895-01-03 | 1895-05-03 |
| 1896 | 1896-02-02 | 1896-12-16 |
| 1897 | 1897-01-24 | 1897-12-20 |
| 1898 | 1898-01-11 | 1898-10-01 |
| 1899 | 1899-02-25 | 1899-10-27 |
| 1900 | 1900-02-24 | 1900-12-06 |
| 1901 | 1901-02-15 | 1901-09-15 |
| 1902 | 1902-03-13 | 1902-03-13 |
| 1904 | 1904-01-09 | 1904-03-29 |
| 1905 | 1905-02-13 | 1905-05-29 |
| 1906 | 1906-01-17 | 1906-12-10 |
| 1907 | 1907-01-05 | 1907-12-04 |
| 1908 | 1908-07-25 | 1908-07-25 |
| 1915 | 1915-02-14 | 1915-12-30 |
| 1916 | 1916-04-04 | 1916-04-04 |
| 1917 | 1917-01-19 | 1917-08-12 |
| 1924 | 1924-02-19 | 1924-12-04 |
| 1927 | 1927-04-20 | 1927-12-03 |
| 1928 | 1928-01-04 | 1928-11-06 |
| 1929 | 1929-03-06 | 1929-12-10 |
| 1930 | 1930-01-06 | 1930-12-07 |
| 1931 | 1931-03-16 | 1931-03-16 |
| 1932 | 1932-01-24 | 1932-11-12 |
| 1934 | 1934-02-12 | 1934-11-29 |
| 1935 | 1935-02-24 | 1935-11-02 |
| 1936 | 1936-02-25 | 1936-11-17 |
| 1937 | 1937-01-26 | 1937-12-02 |
| 1939 | 1939-01-30 | 1939-10-22 |
| 1940 | 1940-01-28 | 1940-09-13 |
| 1941 | 1941-01-30 | 1941-08-12 |
| 1942 | 1942-01-26 | 1942-12-03 |
| 1943 | 1943-02-23 | 1943-12-05 |
| 1944 | 1944-03-08 | 1944-05-27 |
| 1945 | 1945-01-06 | 1945-12-03 |
| 1946 | 1946-01-18 | 1946-07-25 |
| 1947 | 1947-03-20 | 1947-12-03 |
| 1948 | 1948-02-17 | 1948-11-16 |
| 1949 | 1949-01-29 | 1949-12-10 |
| 1950 | 1950-02-16 | 1950-11-29 |
| 1951 | 1951-02-16 | 1951-05-15 |
| 1952 | 1952-02-05 | 1952-11-07 |
| 1953 | 1953-02-22 | 1953-12-19 |
| 1954 | 1954-03-14 | 1954-11-20 |
| 1955 | 1955-01-19 | 1955-12-03 |
| 1956 | 1956-02-07 | 1956-12-07 |
| 1957 | 1957-03-01 | 1957-10-20 |
| 1958 | 1958-01-19 | 1958-12-15 |
| 1959 | 1959-01-24 | 1959-11-17 |
| 1960 | 1960-02-24 | 1960-04-22 |
| 1961 | 1961-01-02 | 1961-11-27 |
| 1962 | 1962-01-18 | 1962-11-19 |
| 1963 | 1963-01-14 | 1963-12-08 |
| 1964 | 1964-04-01 | 1964-12-25 |
| 1965 | 1965-03-30 | 1965-04-15 |
| 1966 | 1966-01-21 | 1966-02-01 |
| 1967 | 1967-01-30 | 1967-11-23 |
| 1968 | 1968-03-12 | 1968-05-16 |
| 1969 | 1969-02-24 | 1969-04-11 |
| 1970 | 1970-02-09 | 1970-12-24 |
| 1971 | 1971-05-03 | 1971-12-01 |
| 1972 | 1972-01-06 | 1972-03-27 |
| 1973 | 1973-02-18 | 1973-12-01 |
| 1974 | 1974-01-15 | 1974-12-19 |
| 1975 | 1975-01-29 | 1975-12-16 |
| 1976 | 1976-01-09 | 1976-10-31 |
| 1977 | 1977-02-11 | 1977-12-28 |
| 1978 | 1978-01-16 | 1978-09-22 |
| 1980 | 1980-08-02 | 1980-09-25 |
| 1981 | 1981-02-21 | 1981-08-27 |
| 1982 | 1982-02-19 | 1982-10-10 |
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 | 75 | 13 | 1974 | 4 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 62 | 6 | 1972 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 15 | 3 | 1973 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1961 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1881.
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).