College Hill Lock 11 Threshold Days by Year (USC00151704)
5 fixed thresholds counted per year at College Hill Lock 11 (USC00151704): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for College Hill Lock 11 Thresholds
- College Hill Lock 11: days with 10 mm (0.39 in) or more of precipitation in 52 years, most in 1935 with 54.
- College Hill Lock 11: days with 25 mm (0.98 in) or more of precipitation in 52 years, most in 1942 with 18.
- College Hill Lock 11: days with 50 mm (1.97 in) or more of precipitation in 43 years, most in 1935 with 6.
- College Hill Lock 11: days with 10 cm (3.9 in) or more of snowfall in 8 years, most in 1960 with 5.
- 5 fixed thresholds have at least one qualifying day at College Hill Lock 11.
Days with 10 mm (0.39 in) or more of precipitation
52 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1924 | 40 | 42.2 |
| 1925 | 39 | 42.2 |
| 1926 | 49 | 42.2 |
| 1927 | 45 | 42.2 |
| 1928 | 33 | 42.2 |
| 1929 | 47 | 42.2 |
| 1931 | 40 | 42.2 |
| 1932 | 39 | 42.2 |
| 1933 | 42 | 42.2 |
| 1935 | 54 | 42.2 |
| 1937 | 36 | 42.2 |
| 1939 | 42 | 42.2 |
| 1940 | 36 | 36 |
| 1941 | 27 | 36 |
| 1942 | 46 | 36 |
| 1943 | 31 | 36 |
| 1944 | 35 | 36 |
| 1945 | 36 | 36 |
| 1946 | 41 | 36 |
| 1947 | 38 | 36 |
| 1948 | 44 | 36 |
| 1949 | 26 | 36 |
| 1950 | 51 | 38.1 |
| 1951 | 40 | 38.1 |
| 1952 | 26 | 38.1 |
| 1953 | 34 | 38.1 |
| 1954 | 38 | 38.1 |
| 1955 | 36 | 38.1 |
| 1956 | 51 | 38.1 |
| 1957 | 43 | 38.1 |
| 1958 | 40 | 38.1 |
| 1959 | 22 | 38.1 |
| 1960 | 37 | 36.8 |
| 1961 | 48 | 36.8 |
| 1962 | 45 | 36.8 |
| 1963 | 27 | 36.8 |
| 1964 | 30 | 36.8 |
| 1965 | 42 | 36.8 |
| 1966 | 41 | 36.8 |
| 1967 | 32 | 36.8 |
| 1968 | 36 | 36.8 |
| 1969 | 30 | 36.8 |
| 1970 | 31 | 40.3 |
| 1971 | 30 | 40.3 |
| 1972 | 50 | 40.3 |
| 1973 | 42 | 40.3 |
| 1974 | 50 | 40.3 |
| 1975 | 47 | 40.3 |
| 1976 | 32 | 40.3 |
| 1978 | 36 | 40.3 |
| 1979 | 45 | 40.3 |
| 1980 | 27 | 27 |
| Year | First date | Last date |
|---|---|---|
| 1924 | 1924-01-03 | 1924-12-24 |
| 1925 | 1925-01-11 | 1925-12-05 |
| 1926 | 1926-01-18 | 1926-12-26 |
| 1927 | 1927-01-20 | 1927-12-16 |
| 1928 | 1928-01-19 | 1928-11-30 |
| 1929 | 1929-01-10 | 1929-12-28 |
| 1931 | 1931-02-08 | 1931-12-24 |
| 1932 | 1932-01-06 | 1932-12-31 |
| 1933 | 1933-01-09 | 1933-12-20 |
| 1935 | 1935-01-01 | 1935-12-30 |
| 1937 | 1937-01-02 | 1937-12-28 |
| 1939 | 1939-01-05 | 1939-12-27 |
| 1940 | 1940-02-06 | 1940-12-29 |
| 1941 | 1941-01-16 | 1941-12-13 |
| 1942 | 1942-01-01 | 1942-12-30 |
| 1943 | 1943-01-26 | 1943-12-29 |
| 1944 | 1944-01-03 | 1944-12-28 |
| 1945 | 1945-01-01 | 1945-11-14 |
| 1946 | 1946-01-07 | 1946-12-29 |
| 1947 | 1947-01-01 | 1947-12-16 |
| 1948 | 1948-01-01 | 1948-12-17 |
| 1949 | 1949-01-05 | 1949-12-13 |
| 1950 | 1950-01-02 | 1950-12-07 |
| 1951 | 1951-01-03 | 1951-12-26 |
| 1952 | 1952-01-02 | 1952-12-10 |
| 1953 | 1953-01-07 | 1953-12-14 |
| 1954 | 1954-01-10 | 1954-12-30 |
| 1955 | 1955-01-05 | 1955-12-02 |
| 1956 | 1956-01-29 | 1956-12-22 |
| 1957 | 1957-01-09 | 1957-12-26 |
| 1958 | 1958-01-14 | 1958-11-29 |
| 1959 | 1959-01-16 | 1959-12-28 |
| 1960 | 1960-01-15 | 1960-12-21 |
| 1961 | 1961-01-01 | 1961-12-18 |
| 1962 | 1962-01-06 | 1962-12-30 |
| 1963 | 1963-02-11 | 1963-11-29 |
| 1964 | 1964-02-06 | 1964-12-26 |
| 1965 | 1965-01-09 | 1965-11-27 |
| 1966 | 1966-01-02 | 1966-12-28 |
| 1967 | 1967-02-03 | 1967-12-22 |
| 1968 | 1968-03-11 | 1968-12-28 |
| 1969 | 1969-01-19 | 1969-12-31 |
| 1970 | 1970-02-02 | 1970-12-22 |
| 1971 | 1971-01-04 | 1971-12-20 |
| 1972 | 1972-01-02 | 1972-12-15 |
| 1973 | 1973-02-02 | 1973-12-30 |
| 1974 | 1974-01-03 | 1974-12-25 |
| 1975 | 1975-01-11 | 1975-12-31 |
| 1976 | 1976-01-03 | 1976-12-07 |
| 1978 | 1978-01-25 | 1978-12-25 |
| 1979 | 1979-01-20 | 1979-12-12 |
| 1980 | 1980-01-07 | 1980-12-24 |
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 | 52 | 54 | 1935 | 27 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 52 | 18 | 1942 | 4 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 43 | 6 | 1935 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1978 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 8 | 5 | 1960 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1924.
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).