Heritage Threshold Days by Year (SF003691170)
4 fixed thresholds counted per year at Heritage (SF003691170): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Heritage Thresholds
- Heritage: days with 10 mm (0.39 in) or more of precipitation in 64 years, most in 1943 with 41.
- Heritage: days with 25 mm (0.98 in) or more of precipitation in 64 years, most in 1974 with 13.
- Heritage: days with 50 mm (1.97 in) or more of precipitation in 33 years, most in 1953 with 4.
- Heritage: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1966 with 1.
- 4 fixed thresholds have at least one qualifying day at Heritage.
Days with 10 mm (0.39 in) or more of precipitation
64 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1914 | 30 | 24.6 |
| 1915 | 26 | 24.6 |
| 1916 | 22 | 24.6 |
| 1918 | 28 | 24.6 |
| 1919 | 17 | 24.6 |
| 1920 | 30 | 26.2 |
| 1922 | 29 | 26.2 |
| 1923 | 24 | 26.2 |
| 1924 | 27 | 26.2 |
| 1925 | 21 | 26.2 |
| 1931 | 19 | 23.9 |
| 1932 | 17 | 23.9 |
| 1933 | 22 | 23.9 |
| 1934 | 29 | 23.9 |
| 1935 | 17 | 23.9 |
| 1936 | 34 | 23.9 |
| 1937 | 16 | 23.9 |
| 1938 | 31 | 23.9 |
| 1939 | 30 | 23.9 |
| 1940 | 25 | 25.9 |
| 1941 | 23 | 25.9 |
| 1942 | 38 | 25.9 |
| 1943 | 41 | 25.9 |
| 1944 | 30 | 25.9 |
| 1945 | 12 | 25.9 |
| 1946 | 28 | 25.9 |
| 1947 | 22 | 25.9 |
| 1948 | 21 | 25.9 |
| 1949 | 19 | 25.9 |
| 1950 | 22 | 24.3 |
| 1951 | 25 | 24.3 |
| 1952 | 22 | 24.3 |
| 1953 | 18 | 24.3 |
| 1954 | 24 | 24.3 |
| 1957 | 29 | 24.3 |
| 1958 | 26 | 24.3 |
| 1959 | 28 | 24.3 |
| 1960 | 27 | 23.1 |
| 1961 | 24 | 23.1 |
| 1962 | 15 | 23.1 |
| 1963 | 25 | 23.1 |
| 1964 | 37 | 23.1 |
| 1965 | 19 | 23.1 |
| 1966 | 15 | 23.1 |
| 1967 | 32 | 23.1 |
| 1968 | 13 | 23.1 |
| 1969 | 24 | 23.1 |
| 1970 | 23 | 24.1 |
| 1971 | 26 | 24.1 |
| 1972 | 21 | 24.1 |
| 1973 | 27 | 24.1 |
| 1974 | 29 | 24.1 |
| 1976 | 23 | 24.1 |
| 1977 | 25 | 24.1 |
| 1978 | 24 | 24.1 |
| 1979 | 19 | 24.1 |
| 1980 | 20 | 22.9 |
| 1981 | 28 | 22.9 |
| 1982 | 16 | 22.9 |
| 1983 | 25 | 22.9 |
| 1984 | 23 | 22.9 |
| 1985 | 17 | 22.9 |
| 1986 | 27 | 22.9 |
| 1987 | 27 | 22.9 |
| Year | First date | Last date |
|---|---|---|
| 1914 | 1914-01-03 | 1914-12-30 |
| 1915 | 1915-01-05 | 1915-12-15 |
| 1916 | 1916-01-02 | 1916-12-30 |
| 1918 | 1918-01-02 | 1918-12-31 |
| 1919 | 1919-01-08 | 1919-12-15 |
| 1920 | 1920-01-06 | 1920-12-30 |
| 1922 | 1922-01-14 | 1922-12-31 |
| 1923 | 1923-01-11 | 1923-12-19 |
| 1924 | 1924-02-02 | 1924-12-10 |
| 1925 | 1925-01-30 | 1925-12-28 |
| 1931 | 1931-01-01 | 1931-11-06 |
| 1932 | 1932-01-11 | 1932-12-25 |
| 1933 | 1933-01-14 | 1933-12-30 |
| 1934 | 1934-01-01 | 1934-12-26 |
| 1935 | 1935-02-04 | 1935-12-04 |
| 1936 | 1936-01-13 | 1936-12-30 |
| 1937 | 1937-01-14 | 1937-12-24 |
| 1938 | 1938-01-16 | 1938-12-30 |
| 1939 | 1939-01-23 | 1939-12-28 |
| 1940 | 1940-01-26 | 1940-12-28 |
| 1941 | 1941-01-13 | 1941-12-25 |
| 1942 | 1942-01-03 | 1942-12-17 |
| 1943 | 1943-01-03 | 1943-12-26 |
| 1944 | 1944-01-04 | 1944-12-10 |
| 1945 | 1945-02-01 | 1945-11-29 |
| 1946 | 1946-01-07 | 1946-12-07 |
| 1947 | 1947-01-02 | 1947-12-30 |
| 1948 | 1948-01-01 | 1948-10-21 |
| 1949 | 1949-01-04 | 1949-12-27 |
| 1950 | 1950-01-15 | 1950-11-02 |
| 1951 | 1951-01-02 | 1951-11-01 |
| 1952 | 1952-01-01 | 1952-12-28 |
| 1953 | 1953-02-01 | 1953-12-21 |
| 1954 | 1954-01-01 | 1954-12-29 |
| 1957 | 1957-02-03 | 1957-12-24 |
| 1958 | 1958-01-01 | 1958-12-23 |
| 1959 | 1959-01-05 | 1959-12-30 |
| 1960 | 1960-01-19 | 1960-12-29 |
| 1961 | 1961-01-14 | 1961-12-09 |
| 1962 | 1962-01-05 | 1962-12-21 |
| 1963 | 1963-01-05 | 1963-12-11 |
| 1964 | 1964-01-04 | 1964-12-28 |
| 1965 | 1965-01-05 | 1965-12-26 |
| 1966 | 1966-01-19 | 1966-12-29 |
| 1967 | 1967-01-01 | 1967-12-20 |
| 1968 | 1968-01-09 | 1968-12-07 |
| 1969 | 1969-01-03 | 1969-12-15 |
| 1970 | 1970-01-22 | 1970-12-24 |
| 1971 | 1971-01-07 | 1971-12-27 |
| 1972 | 1972-01-03 | 1972-12-10 |
| 1973 | 1973-01-06 | 1973-12-23 |
| 1974 | 1974-01-02 | 1974-12-26 |
| 1976 | 1976-01-05 | 1976-12-28 |
| 1977 | 1977-01-10 | 1977-12-31 |
| 1978 | 1978-01-01 | 1978-12-30 |
| 1979 | 1979-02-15 | 1979-12-26 |
| 1980 | 1980-01-14 | 1980-12-23 |
| 1981 | 1981-01-01 | 1981-12-30 |
| 1982 | 1982-01-02 | 1982-12-19 |
| 1983 | 1983-01-13 | 1983-12-31 |
| 1984 | 1984-01-01 | 1984-12-18 |
| 1985 | 1985-01-13 | 1985-12-22 |
| 1986 | 1986-01-16 | 1986-12-29 |
| 1987 | 1987-01-01 | 1987-12-21 |
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 | 64 | 41 | 1943 | 27 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 64 | 13 | 1974 | 9 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 33 | 4 | 1953 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1966 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1914.
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).