Demopolis Lock 4 Threshold Days by Year (USC00012240)
14 fixed thresholds counted per year at Demopolis Lock 4 (USC00012240): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Demopolis Lock 4 Thresholds
- Demopolis Lock 4: days with 10 mm (0.39 in) or more of precipitation in 57 years, most in 1929 with 57.
- Demopolis Lock 4: days with 25 mm (0.98 in) or more of precipitation in 57 years, most in 1947 with 24.
- Demopolis Lock 4: days with 50 mm (1.97 in) or more of precipitation in 57 years, most in 1907 with 10.
- Demopolis Lock 4: days with 100 mm (3.94 in) or more of precipitation in 19 years, most in 1932 with 3.
- 14 fixed thresholds have at least one qualifying day at Demopolis Lock 4.
Days with 10 mm (0.39 in) or more of precipitation
57 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1895 | 39 | 37.8 |
| 1896 | 36 | 37.8 |
| 1897 | 42 | 37.8 |
| 1898 | 38 | 37.8 |
| 1899 | 34 | 37.8 |
| 1900 | 54 | 44.6 |
| 1901 | 42 | 44.6 |
| 1902 | 39 | 44.6 |
| 1903 | 39 | 44.6 |
| 1905 | 47 | 44.6 |
| 1906 | 39 | 44.6 |
| 1907 | 51 | 44.6 |
| 1908 | 42 | 44.6 |
| 1909 | 48 | 44.6 |
| 1910 | 38 | 41.4 |
| 1911 | 41 | 41.4 |
| 1912 | 44 | 41.4 |
| 1913 | 47 | 41.4 |
| 1914 | 33 | 41.4 |
| 1915 | 39 | 41.4 |
| 1916 | 35 | 41.4 |
| 1917 | 45 | 41.4 |
| 1918 | 51 | 41.4 |
| 1920 | 47 | 42.6 |
| 1921 | 34 | 42.6 |
| 1922 | 47 | 42.6 |
| 1923 | 53 | 42.6 |
| 1924 | 35 | 42.6 |
| 1925 | 38 | 42.6 |
| 1926 | 43 | 42.6 |
| 1927 | 37 | 42.6 |
| 1928 | 35 | 42.6 |
| 1929 | 57 | 42.6 |
| 1930 | 34 | 38.5 |
| 1931 | 35 | 38.5 |
| 1932 | 42 | 38.5 |
| 1933 | 29 | 38.5 |
| 1934 | 46 | 38.5 |
| 1935 | 40 | 38.5 |
| 1936 | 39 | 38.5 |
| 1937 | 40 | 38.5 |
| 1938 | 36 | 38.5 |
| 1939 | 44 | 38.5 |
| 1940 | 43 | 42.3 |
| 1941 | 36 | 42.3 |
| 1942 | 36 | 42.3 |
| 1943 | 30 | 42.3 |
| 1944 | 55 | 42.3 |
| 1945 | 38 | 42.3 |
| 1946 | 49 | 42.3 |
| 1947 | 52 | 42.3 |
| 1948 | 47 | 42.3 |
| 1949 | 37 | 42.3 |
| 1950 | 50 | 39.8 |
| 1951 | 32 | 39.8 |
| 1952 | 33 | 39.8 |
| 1953 | 44 | 39.8 |
| Year | First date | Last date |
|---|---|---|
| 1895 | 1895-01-03 | 1895-12-30 |
| 1896 | 1896-01-08 | 1896-12-15 |
| 1897 | 1897-01-04 | 1897-12-26 |
| 1898 | 1898-01-11 | 1898-12-19 |
| 1899 | 1899-01-05 | 1899-12-23 |
| 1900 | 1900-01-11 | 1900-12-31 |
| 1901 | 1901-01-01 | 1901-12-30 |
| 1902 | 1902-01-19 | 1902-12-30 |
| 1903 | 1903-01-02 | 1903-12-25 |
| 1905 | 1905-01-06 | 1905-12-28 |
| 1906 | 1906-01-03 | 1906-12-31 |
| 1907 | 1907-01-20 | 1907-12-30 |
| 1908 | 1908-01-05 | 1908-12-22 |
| 1909 | 1909-02-06 | 1909-12-25 |
| 1910 | 1910-01-06 | 1910-12-30 |
| 1911 | 1911-01-02 | 1911-12-31 |
| 1912 | 1912-01-03 | 1912-12-30 |
| 1913 | 1913-01-12 | 1913-12-29 |
| 1914 | 1914-01-03 | 1914-12-29 |
| 1915 | 1915-01-06 | 1915-12-29 |
| 1916 | 1916-01-13 | 1916-12-28 |
| 1917 | 1917-01-14 | 1917-12-26 |
| 1918 | 1918-01-06 | 1918-12-24 |
| 1920 | 1920-01-07 | 1920-12-27 |
| 1921 | 1921-01-03 | 1921-12-18 |
| 1922 | 1922-01-05 | 1922-12-31 |
| 1923 | 1923-01-01 | 1923-12-23 |
| 1924 | 1924-01-01 | 1924-12-31 |
| 1925 | 1925-01-10 | 1925-12-20 |
| 1926 | 1926-01-03 | 1926-12-29 |
| 1927 | 1927-02-09 | 1927-12-29 |
| 1928 | 1928-01-19 | 1928-12-20 |
| 1929 | 1929-01-05 | 1929-12-22 |
| 1930 | 1930-01-03 | 1930-12-26 |
| 1931 | 1931-01-05 | 1931-12-31 |
| 1932 | 1932-01-06 | 1932-12-28 |
| 1933 | 1933-01-09 | 1933-12-19 |
| 1934 | 1934-01-01 | 1934-12-28 |
| 1935 | 1935-01-01 | 1935-12-29 |
| 1936 | 1936-01-02 | 1936-12-31 |
| 1937 | 1937-01-02 | 1937-12-23 |
| 1938 | 1938-01-07 | 1938-12-26 |
| 1939 | 1939-01-05 | 1939-12-26 |
| 1940 | 1940-01-12 | 1940-12-28 |
| 1941 | 1941-01-15 | 1941-12-26 |
| 1942 | 1942-01-01 | 1942-12-28 |
| 1943 | 1943-01-08 | 1943-12-26 |
| 1944 | 1944-01-03 | 1944-12-19 |
| 1945 | 1945-01-01 | 1945-12-31 |
| 1946 | 1946-01-06 | 1946-12-20 |
| 1947 | 1947-01-02 | 1947-12-16 |
| 1948 | 1948-01-01 | 1948-12-29 |
| 1949 | 1949-01-05 | 1949-12-23 |
| 1950 | 1950-01-07 | 1950-12-29 |
| 1951 | 1951-01-04 | 1951-12-21 |
| 1952 | 1952-01-05 | 1952-12-31 |
| 1953 | 1953-01-08 | 1953-12-29 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 2 | 121 | 1953 | 121 |
| 35 C (95 F): Days | 2 | 57 | 1952 | 38 |
| 40 C (104 F): Days | 1 | 1 | 1952 | 1 |
| 90 F (32.2 C): Days | 2 | 86 | 1952 | 85 |
| 100 F (37.8 C): Days | 2 | 11 | 1952 | 1 |
| 0 C (32 F): Frost days (min | 2 | 36 | 1952 | 33 |
| 20 C (68 F): Tropical nights (min | 2 | 87 | 1953 | 87 |
| 25 C (77 F): Days with min | 1 | 4 | 1952 | 4 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 57 | 57 | 1929 | 44 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 57 | 24 | 1947 | 14 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 57 | 10 | 1907 | 3 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 19 | 3 | 1932 | 1 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 1 | 1 | 1900 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 1 | 1 | 1929 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1952.
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).