Willapa Harbor Threshold Days by Year (USC00459291)
13 fixed thresholds counted per year at Willapa Harbor (USC00459291): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Willapa Harbor Thresholds
- Willapa Harbor: nights with a minimum temperature at or below 0 C (32 F) in 69 years, most in 1922 with 125.
- Willapa Harbor: days with a maximum temperature at or above 30 C (86 F) in 68 years, most in 1972 with 15.
- Willapa Harbor: days with 10 mm (0.39 in) or more of precipitation in 60 years, most in 1950 with 97.
- Willapa Harbor: days with 25 mm (0.98 in) or more of precipitation in 60 years, most in 1950 with 39.
- 13 fixed thresholds have at least one qualifying day at Willapa Harbor.
Days at or above 30 C (86 F)
68 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1897 | 12 | 10.3 |
| 1898 | 13 | 10.3 |
| 1899 | 6 | 10.3 |
| 1900 | 5 | 7 |
| 1901 | 8 | 7 |
| 1902 | 10 | 7 |
| 1903 | 5 | 7 |
| 1910 | 3 | 4.7 |
| 1911 | 6 | 4.7 |
| 1912 | 6 | 4.7 |
| 1914 | 6 | 4.7 |
| 1915 | 5 | 4.7 |
| 1916 | 2 | 4.7 |
| 1920 | 8 | 6 |
| 1921 | 1 | 6 |
| 1922 | 8 | 6 |
| 1923 | 8 | 6 |
| 1924 | 5 | 6 |
| 1925 | 4 | 6 |
| 1927 | 6 | 6 |
| 1928 | 6 | 6 |
| 1929 | 8 | 6 |
| 1930 | 5 | 7.6 |
| 1931 | 12 | 7.6 |
| 1932 | 7 | 7.6 |
| 1933 | 8 | 7.6 |
| 1934 | 5 | 7.6 |
| 1935 | 11 | 7.6 |
| 1936 | 7 | 7.6 |
| 1937 | 6 | 7.6 |
| 1938 | 3 | 7.6 |
| 1939 | 12 | 7.6 |
| 1940 | 8 | 5.3 |
| 1942 | 10 | 5.3 |
| 1943 | 2 | 5.3 |
| 1944 | 5 | 5.3 |
| 1945 | 5 | 5.3 |
| 1946 | 5 | 5.3 |
| 1947 | 4 | 5.3 |
| 1949 | 3 | 5.3 |
| 1950 | 3 | 6 |
| 1951 | 8 | 6 |
| 1952 | 9 | 6 |
| 1953 | 4 | 6 |
| 1955 | 3 | 6 |
| 1956 | 7 | 6 |
| 1957 | 3 | 6 |
| 1958 | 14 | 6 |
| 1959 | 3 | 6 |
| 1960 | 6 | 5.7 |
| 1961 | 9 | 5.7 |
| 1962 | 1 | 5.7 |
| 1963 | 5 | 5.7 |
| 1964 | 2 | 5.7 |
| 1966 | 3 | 5.7 |
| 1967 | 9 | 5.7 |
| 1968 | 10 | 5.7 |
| 1969 | 6 | 5.7 |
| 1970 | 10 | 8.7 |
| 1971 | 10 | 8.7 |
| 1972 | 15 | 8.7 |
| 1973 | 8 | 8.7 |
| 1974 | 14 | 8.7 |
| 1975 | 5 | 8.7 |
| 1976 | 1 | 8.7 |
| 1977 | 8 | 8.7 |
| 1978 | 10 | 8.7 |
| 1979 | 6 | 8.7 |
| Year | First date | Last date |
|---|---|---|
| 1897 | 1897-04-17 | 1897-08-19 |
| 1898 | 1898-05-25 | 1898-09-18 |
| 1899 | 1899-07-25 | 1899-10-04 |
| 1900 | 1900-04-29 | 1900-09-11 |
| 1901 | 1901-05-25 | 1901-09-18 |
| 1902 | 1902-06-19 | 1902-09-10 |
| 1903 | 1903-06-06 | 1903-08-17 |
| 1910 | 1910-06-11 | 1910-08-18 |
| 1911 | 1911-07-12 | 1911-08-23 |
| 1912 | 1912-06-06 | 1912-08-21 |
| 1914 | 1914-05-20 | 1914-08-12 |
| 1915 | 1915-06-30 | 1915-08-28 |
| 1916 | 1916-08-22 | 1916-08-23 |
| 1920 | 1920-06-02 | 1920-09-29 |
| 1921 | 1921-08-07 | 1921-08-07 |
| 1922 | 1922-05-28 | 1922-09-11 |
| 1923 | 1923-06-05 | 1923-09-07 |
| 1924 | 1924-06-09 | 1924-09-12 |
| 1925 | 1925-05-15 | 1925-08-08 |
| 1927 | 1927-06-05 | 1927-09-18 |
| 1928 | 1928-05-24 | 1928-09-22 |
| 1929 | 1929-07-07 | 1929-09-15 |
| 1930 | 1930-06-15 | 1930-09-02 |
| 1931 | 1931-05-10 | 1931-08-28 |
| 1932 | 1932-06-09 | 1932-10-03 |
| 1933 | 1933-07-14 | 1933-10-06 |
| 1934 | 1934-05-13 | 1934-09-02 |
| 1935 | 1935-06-05 | 1935-09-28 |
| 1936 | 1936-05-12 | 1936-10-07 |
| 1937 | 1937-06-05 | 1937-10-22 |
| 1938 | 1938-05-20 | 1938-07-14 |
| 1939 | 1939-05-13 | 1939-08-20 |
| 1940 | 1940-06-11 | 1940-09-22 |
| 1942 | 1942-06-29 | 1942-09-22 |
| 1943 | 1943-09-07 | 1943-09-08 |
| 1944 | 1944-07-17 | 1944-09-05 |
| 1945 | 1945-06-17 | 1945-09-12 |
| 1946 | 1946-07-19 | 1946-08-19 |
| 1947 | 1947-05-23 | 1947-09-24 |
| 1949 | 1949-07-31 | 1949-09-03 |
| 1950 | 1950-07-12 | 1950-09-21 |
| 1951 | 1951-06-27 | 1951-09-03 |
| 1952 | 1952-05-16 | 1952-09-22 |
| 1953 | 1953-07-06 | 1953-09-04 |
| 1955 | 1955-06-08 | 1955-09-05 |
| 1956 | 1956-04-20 | 1956-08-12 |
| 1957 | 1957-09-13 | 1957-09-22 |
| 1958 | 1958-05-17 | 1958-09-07 |
| 1959 | 1959-07-17 | 1959-07-30 |
| 1960 | 1960-07-05 | 1960-09-09 |
| 1961 | 1961-06-01 | 1961-08-11 |
| 1962 | 1962-09-04 | 1962-09-04 |
| 1963 | 1963-05-19 | 1963-09-07 |
| 1964 | 1964-07-11 | 1964-08-24 |
| 1966 | 1966-06-16 | 1966-08-21 |
| 1967 | 1967-07-01 | 1967-09-15 |
| 1968 | 1968-07-01 | 1968-09-06 |
| 1969 | 1969-05-22 | 1969-06-18 |
| 1970 | 1970-06-01 | 1970-08-11 |
| 1971 | 1971-05-11 | 1971-08-11 |
| 1972 | 1972-05-27 | 1972-09-03 |
| 1973 | 1973-05-13 | 1973-09-10 |
| 1974 | 1974-06-29 | 1974-09-25 |
| 1975 | 1975-07-04 | 1975-09-12 |
| 1976 | 1976-07-15 | 1976-07-15 |
| 1977 | 1977-06-17 | 1977-08-17 |
| 1978 | 1978-06-04 | 1978-08-08 |
| 1979 | 1979-05-25 | 1979-07-30 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 68 | 15 | 1972 | 6 |
| 35 C (95 F): Days | 35 | 4 | 1977 | 2 |
| 90 F (32.2 C): Days | 59 | 8 | 1898 | 3 |
| 100 F (37.8 C): Days | 4 | 1 | 1931 | 1 |
| 0 C (32 F): Ice days (max | 30 | 10 | 1950 | 1 |
| 0 C (32 F): Frost days (min | 69 | 125 | 1922 | 47 |
| -10 C (14 F): Days with min | 22 | 7 | 1930 | 1 |
| 20 C (68 F): Tropical nights (min | 1 | 1 | 1967 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 60 | 97 | 1950 | 63 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 60 | 39 | 1950 | 17 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 59 | 14 | 1921 | 3 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 15 | 2 | 1899 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 5 | 1 | 1950 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1897.
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).