Port Dover Threshold Days by Year
17 fixed thresholds counted per year at Port Dover (CA006136643): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Port Dover Thresholds
- Port Dover: days with a maximum temperature at or below 0 C (32 F) in 100 years, most in 1904 with 91.
- Port Dover: nights with a minimum temperature at or below 0 C (32 F) in 100 years, most in 1917 with 179.
- Port Dover: nights with a minimum temperature at or below -10 C (14 F) in 100 years, most in 1936 with 74.
- Port Dover: nights with a minimum temperature at or above 20 C (68 F) in 99 years, most in 1898 with 36.
- 17 fixed thresholds have at least one qualifying day at Port Dover.
Days at or above 30 C (86 F)
96 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1876 | 17 | 9.8 |
| 1877 | 6 | 9.8 |
| 1878 | 12 | 9.8 |
| 1879 | 4 | 9.8 |
| 1880 | 6 | 5.6 |
| 1881 | 15 | 5.6 |
| 1882 | 6 | 5.6 |
| 1884 | 1 | 5.6 |
| 1885 | 3 | 5.6 |
| 1886 | 5 | 5.6 |
| 1887 | 10 | 5.6 |
| 1888 | 2 | 5.6 |
| 1889 | 2 | 5.6 |
| 1890 | 4 | 9.7 |
| 1891 | 3 | 9.7 |
| 1892 | 4 | 9.7 |
| 1893 | 8 | 9.7 |
| 1894 | 12 | 9.7 |
| 1895 | 10 | 9.7 |
| 1896 | 6 | 9.7 |
| 1897 | 11 | 9.7 |
| 1898 | 20 | 9.7 |
| 1899 | 19 | 9.7 |
| 1900 | 23 | 10.3 |
| 1901 | 26 | 10.3 |
| 1902 | 6 | 10.3 |
| 1903 | 8 | 10.3 |
| 1904 | 6 | 10.3 |
| 1906 | 3 | 10.3 |
| 1907 | 1 | 10.3 |
| 1908 | 9 | 10.3 |
| 1910 | 4 | 12.6 |
| 1911 | 11 | 12.6 |
| 1912 | 10 | 12.6 |
| 1913 | 7 | 12.6 |
| 1914 | 14 | 12.6 |
| 1915 | 2 | 12.6 |
| 1916 | 24 | 12.6 |
| 1917 | 10 | 12.6 |
| 1918 | 17 | 12.6 |
| 1919 | 27 | 12.6 |
| 1921 | 21 | 9 |
| 1922 | 9 | 9 |
| 1923 | 4 | 9 |
| 1924 | 1 | 9 |
| 1929 | 10 | 9 |
| 1932 | 7 | 16.9 |
| 1933 | 31 | 16.9 |
| 1934 | 26 | 16.9 |
| 1935 | 24 | 16.9 |
| 1936 | 24 | 16.9 |
| 1937 | 7 | 16.9 |
| 1938 | 10 | 16.9 |
| 1939 | 6 | 16.9 |
| 1940 | 7 | 9.3 |
| 1941 | 19 | 9.3 |
| 1942 | 4 | 9.3 |
| 1943 | 5 | 9.3 |
| 1944 | 6 | 9.3 |
| 1945 | 8 | 9.3 |
| 1946 | 2 | 9.3 |
| 1947 | 9 | 9.3 |
| 1948 | 24 | 9.3 |
| 1950 | 5 | 9.3 |
| 1951 | 2 | 9.3 |
| 1952 | 13 | 9.3 |
| 1953 | 15 | 9.3 |
| 1954 | 8 | 9.3 |
| 1955 | 26 | 9.3 |
| 1956 | 1 | 9.3 |
| 1957 | 3 | 9.3 |
| 1959 | 11 | 9.3 |
| 1960 | 2 | 4.9 |
| 1961 | 1 | 4.9 |
| 1962 | 3 | 4.9 |
| 1963 | 7 | 4.9 |
| 1964 | 10 | 4.9 |
| 1965 | 1 | 4.9 |
| 1966 | 8 | 4.9 |
| 1967 | 2 | 4.9 |
| 1968 | 12 | 4.9 |
| 1969 | 3 | 4.9 |
| 1970 | 2 | 3.6 |
| 1971 | 4 | 3.6 |
| 1972 | 4 | 3.6 |
| 1973 | 9 | 3.6 |
| 1974 | 1 | 3.6 |
| 1975 | 5 | 3.6 |
| 1976 | 2 | 3.6 |
| 1977 | 1 | 3.6 |
| 1978 | 6 | 3.6 |
| 1979 | 2 | 3.6 |
| 1980 | 5 | 5.3 |
| 1981 | 6 | 5.3 |
| 1982 | 2 | 5.3 |
| 1983 | 8 | 5.3 |
| Year | First date | Last date |
|---|---|---|
| 1876 | 1876-06-11 | 1876-08-14 |
| 1877 | 1877-06-01 | 1877-08-22 |
| 1878 | 1878-06-29 | 1878-09-07 |
| 1879 | 1879-06-25 | 1879-07-30 |
| 1880 | 1880-07-08 | 1880-09-02 |
| 1881 | 1881-07-04 | 1881-09-07 |
| 1882 | 1882-06-13 | 1882-09-02 |
| 1884 | 1884-09-05 | 1884-09-05 |
| 1885 | 1885-07-06 | 1885-08-01 |
| 1886 | 1886-06-15 | 1886-08-28 |
| 1887 | 1887-05-10 | 1887-08-06 |
| 1888 | 1888-06-21 | 1888-06-22 |
| 1889 | 1889-07-09 | 1889-07-10 |
| 1890 | 1890-07-08 | 1890-08-09 |
| 1891 | 1891-06-25 | 1891-08-09 |
| 1892 | 1892-07-24 | 1892-08-10 |
| 1893 | 1893-07-08 | 1893-08-11 |
| 1894 | 1894-06-12 | 1894-09-04 |
| 1895 | 1895-05-31 | 1895-07-17 |
| 1896 | 1896-05-10 | 1896-08-09 |
| 1897 | 1897-07-02 | 1897-07-12 |
| 1898 | 1898-07-02 | 1898-09-04 |
| 1899 | 1899-07-03 | 1899-09-03 |
| 1900 | 1900-06-24 | 1900-09-11 |
| 1901 | 1901-06-27 | 1901-09-07 |
| 1902 | 1902-07-17 | 1902-08-03 |
| 1903 | 1903-07-01 | 1903-09-15 |
| 1904 | 1904-06-25 | 1904-07-20 |
| 1906 | 1906-06-29 | 1906-09-09 |
| 1907 | 1907-08-10 | 1907-08-10 |
| 1908 | 1908-06-19 | 1908-09-10 |
| 1910 | 1910-07-01 | 1910-08-15 |
| 1911 | 1911-05-22 | 1911-08-17 |
| 1912 | 1912-06-29 | 1912-09-10 |
| 1913 | 1913-06-27 | 1913-09-02 |
| 1914 | 1914-06-24 | 1914-09-22 |
| 1915 | 1915-09-13 | 1915-09-15 |
| 1916 | 1916-07-07 | 1916-08-22 |
| 1917 | 1917-07-22 | 1917-08-20 |
| 1918 | 1918-06-01 | 1918-08-23 |
| 1919 | 1919-05-31 | 1919-09-08 |
| 1921 | 1921-06-23 | 1921-09-02 |
| 1922 | 1922-06-24 | 1922-09-10 |
| 1923 | 1923-06-25 | 1923-08-06 |
| 1924 | 1924-07-23 | 1924-07-23 |
| 1929 | 1929-07-18 | 1929-09-05 |
| 1932 | 1932-05-25 | 1932-09-01 |
| 1933 | 1933-06-08 | 1933-09-09 |
| 1934 | 1934-05-31 | 1934-08-16 |
| 1935 | 1935-07-06 | 1935-08-26 |
| 1936 | 1936-06-20 | 1936-08-23 |
| 1937 | 1937-07-09 | 1937-09-03 |
| 1938 | 1938-07-08 | 1938-08-17 |
| 1939 | 1939-06-08 | 1939-08-19 |
| 1940 | 1940-07-20 | 1940-08-13 |
| 1941 | 1941-06-26 | 1941-09-09 |
| 1942 | 1942-07-13 | 1942-07-28 |
| 1943 | 1943-07-20 | 1943-09-01 |
| 1944 | 1944-06-27 | 1944-08-12 |
| 1945 | 1945-06-29 | 1945-08-22 |
| 1946 | 1946-06-26 | 1946-07-19 |
| 1947 | 1947-07-29 | 1947-09-19 |
| 1948 | 1948-06-12 | 1948-08-27 |
| 1950 | 1950-06-24 | 1950-08-24 |
| 1951 | 1951-07-26 | 1951-07-30 |
| 1952 | 1952-06-24 | 1952-08-27 |
| 1953 | 1953-06-21 | 1953-09-04 |
| 1954 | 1954-06-14 | 1954-09-05 |
| 1955 | 1955-06-06 | 1955-08-21 |
| 1956 | 1956-07-27 | 1956-07-27 |
| 1957 | 1957-06-17 | 1957-07-31 |
| 1959 | 1959-06-27 | 1959-09-09 |
| 1960 | 1960-09-01 | 1960-09-07 |
| 1961 | 1961-09-03 | 1961-09-03 |
| 1962 | 1962-05-17 | 1962-06-30 |
| 1963 | 1963-06-30 | 1963-07-28 |
| 1964 | 1964-06-09 | 1964-07-28 |
| 1965 | 1965-08-15 | 1965-08-15 |
| 1966 | 1966-06-08 | 1966-09-02 |
| 1967 | 1967-06-15 | 1967-07-01 |
| 1968 | 1968-06-08 | 1968-08-24 |
| 1969 | 1969-06-27 | 1969-08-25 |
| 1970 | 1970-06-30 | 1970-08-01 |
| 1971 | 1971-06-20 | 1971-08-07 |
| 1972 | 1972-07-01 | 1972-07-23 |
| 1973 | 1973-07-07 | 1973-09-03 |
| 1974 | 1974-07-03 | 1974-07-03 |
| 1975 | 1975-06-29 | 1975-08-02 |
| 1976 | 1976-06-07 | 1976-06-11 |
| 1977 | 1977-07-20 | 1977-07-20 |
| 1978 | 1978-05-27 | 1978-08-19 |
| 1979 | 1979-07-15 | 1979-07-16 |
| 1980 | 1980-07-11 | 1980-08-07 |
| 1981 | 1981-06-15 | 1981-07-13 |
| 1982 | 1982-07-06 | 1982-07-25 |
| 1983 | 1983-06-26 | 1983-08-08 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 96 | 31 | 1933 | 8 |
| 35 C (95 F): Days | 6 | 3 | 1936 | 1 |
| 40 C (104 F): Days | 1 | 1 | 1936 | 1 |
| 90 F (32.2 C): Days | 56 | 10 | 1919 | 2 |
| 100 F (37.8 C): Days | 1 | 2 | 1936 | 2 |
| 0 C (32 F): Ice days (max | 100 | 91 | 1904 | 45 |
| 0 C (32 F): Frost days (min | 100 | 179 | 1917 | 134 |
| -10 C (14 F): Days with min | 100 | 74 | 1936 | 32 |
| -20 C (-4 F): Days with min | 86 | 19 | 1904 | 4 |
| -30 C (-22 F): Days with min | 3 | 2 | 1934 | 2 |
| 20 C (68 F): Tropical nights (min | 99 | 36 | 1898 | 15 |
| 25 C (77 F): Days with min | 6 | 3 | 1916 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 96 | 44 | 1917 | 36 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 95 | 14 | 1957 | 5 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 44 | 4 | 1959 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 93 | 9 | 1917 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 21 | 3 | 1923 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1876.
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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2026-10-14).