Big St Germain Dam Threshold Days by Year
17 fixed thresholds counted per year at Big St Germain Dam (USC00470786): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Big St Germain Dam Thresholds
- Big St Germain Dam: days with a maximum temperature at or below 0 C (32 F) in 59 years, most in 1950 with 115.
- Big St Germain Dam: days with a maximum temperature at or above 30 C (86 F) in 58 years, most in 1921 with 32.
- Big St Germain Dam: days with 10 mm (0.39 in) or more of precipitation in 56 years, most in 1951 with 39.
- Big St Germain Dam: days with 25 mm (0.98 in) or more of precipitation in 56 years, most in 1922 with 9.
- 17 fixed thresholds have at least one qualifying day at Big St Germain Dam.
Days at or above 30 C (86 F)
58 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1912 | 9 | 14.3 |
| 1913 | 19 | 14.3 |
| 1914 | 16 | 14.3 |
| 1915 | 3 | 14.3 |
| 1916 | 27 | 14.3 |
| 1917 | 11 | 14.3 |
| 1918 | 9 | 14.3 |
| 1919 | 20 | 14.3 |
| 1920 | 11 | 13.4 |
| 1921 | 32 | 13.4 |
| 1922 | 13 | 13.4 |
| 1923 | 18 | 13.4 |
| 1925 | 21 | 13.4 |
| 1926 | 2 | 13.4 |
| 1927 | 7 | 13.4 |
| 1928 | 7 | 13.4 |
| 1929 | 10 | 13.4 |
| 1930 | 18 | 17.9 |
| 1931 | 20 | 17.9 |
| 1932 | 13 | 17.9 |
| 1933 | 28 | 17.9 |
| 1934 | 21 | 17.9 |
| 1935 | 13 | 17.9 |
| 1936 | 12 | 17.9 |
| 1937 | 30 | 17.9 |
| 1938 | 8 | 17.9 |
| 1939 | 16 | 17.9 |
| 1940 | 8 | 11.6 |
| 1941 | 22 | 11.6 |
| 1942 | 4 | 11.6 |
| 1943 | 13 | 11.6 |
| 1944 | 15 | 11.6 |
| 1945 | 7 | 11.6 |
| 1947 | 14 | 11.6 |
| 1948 | 8 | 11.6 |
| 1949 | 13 | 11.6 |
| 1950 | 3 | 7.9 |
| 1951 | 1 | 7.9 |
| 1952 | 13 | 7.9 |
| 1953 | 10 | 7.9 |
| 1954 | 7 | 7.9 |
| 1955 | 19 | 7.9 |
| 1956 | 5 | 7.9 |
| 1957 | 6 | 7.9 |
| 1958 | 3 | 7.9 |
| 1959 | 12 | 7.9 |
| 1960 | 3 | 6.7 |
| 1961 | 2 | 6.7 |
| 1962 | 2 | 6.7 |
| 1963 | 9 | 6.7 |
| 1964 | 20 | 6.7 |
| 1965 | 2 | 6.7 |
| 1966 | 13 | 6.7 |
| 1967 | 1 | 6.7 |
| 1968 | 8 | 6.7 |
| 1969 | 7 | 6.7 |
| 1970 | 16 | 12.5 |
| 1971 | 9 | 12.5 |
| Year | First date | Last date |
|---|---|---|
| 1912 | 1912-06-24 | 1912-09-09 |
| 1913 | 1913-06-13 | 1913-09-06 |
| 1914 | 1914-05-26 | 1914-08-09 |
| 1915 | 1915-07-13 | 1915-09-05 |
| 1916 | 1916-07-05 | 1916-08-20 |
| 1917 | 1917-07-21 | 1917-08-19 |
| 1918 | 1918-05-05 | 1918-08-25 |
| 1919 | 1919-05-26 | 1919-09-08 |
| 1920 | 1920-06-08 | 1920-09-25 |
| 1921 | 1921-05-20 | 1921-09-01 |
| 1922 | 1922-05-10 | 1922-09-29 |
| 1923 | 1923-05-28 | 1923-09-27 |
| 1925 | 1925-05-20 | 1925-09-09 |
| 1926 | 1926-07-08 | 1926-07-20 |
| 1927 | 1927-06-28 | 1927-09-15 |
| 1928 | 1928-05-24 | 1928-08-16 |
| 1929 | 1929-05-29 | 1929-09-03 |
| 1930 | 1930-05-20 | 1930-09-11 |
| 1931 | 1931-06-18 | 1931-09-12 |
| 1932 | 1932-05-14 | 1932-08-30 |
| 1933 | 1933-05-14 | 1933-09-05 |
| 1934 | 1934-05-06 | 1934-08-18 |
| 1935 | 1935-07-04 | 1935-09-24 |
| 1936 | 1936-05-09 | 1936-09-22 |
| 1937 | 1937-05-29 | 1937-09-22 |
| 1938 | 1938-06-22 | 1938-08-15 |
| 1939 | 1939-05-31 | 1939-09-14 |
| 1940 | 1940-06-03 | 1940-09-19 |
| 1941 | 1941-05-19 | 1941-08-09 |
| 1942 | 1942-07-12 | 1942-08-21 |
| 1943 | 1943-06-19 | 1943-08-23 |
| 1944 | 1944-05-24 | 1944-08-14 |
| 1945 | 1945-06-23 | 1945-09-07 |
| 1947 | 1947-08-04 | 1947-09-10 |
| 1948 | 1948-05-20 | 1948-09-13 |
| 1949 | 1949-05-03 | 1949-08-09 |
| 1950 | 1950-05-23 | 1950-06-25 |
| 1951 | 1951-07-26 | 1951-07-26 |
| 1952 | 1952-04-27 | 1952-09-13 |
| 1953 | 1953-05-09 | 1953-09-02 |
| 1954 | 1954-06-13 | 1954-07-26 |
| 1955 | 1955-05-02 | 1955-08-28 |
| 1956 | 1956-06-10 | 1956-06-14 |
| 1957 | 1957-06-17 | 1957-08-02 |
| 1958 | 1958-06-29 | 1958-08-09 |
| 1959 | 1959-05-02 | 1959-09-08 |
| 1960 | 1960-07-21 | 1960-09-06 |
| 1961 | 1961-06-30 | 1961-08-31 |
| 1962 | 1962-05-14 | 1962-05-17 |
| 1963 | 1963-06-04 | 1963-07-26 |
| 1964 | 1964-05-22 | 1964-08-06 |
| 1965 | 1965-08-12 | 1965-08-14 |
| 1966 | 1966-06-25 | 1966-07-25 |
| 1967 | 1967-05-26 | 1967-05-26 |
| 1968 | 1968-06-05 | 1968-08-24 |
| 1969 | 1969-05-28 | 1969-08-30 |
| 1970 | 1970-04-29 | 1970-08-14 |
| 1971 | 1971-06-05 | 1971-09-04 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 58 | 32 | 1921 | 9 |
| 35 C (95 F): Days | 16 | 5 | 1931 | 2 |
| 90 F (32.2 C): Days | 49 | 21 | 1921 | 2 |
| 100 F (37.8 C): Days | 2 | 2 | 1934 | 2 |
| 0 C (32 F): Ice days (max | 59 | 115 | 1950 | 78 |
| 0 C (32 F): Frost days (min | 55 | 213 | 1926 | 157 |
| -10 C (14 F): Days with min | 55 | 114 | 1964 | 75 |
| -20 C (-4 F): Days with min | 55 | 56 | 1963 | 31 |
| -30 C (-22 F): Days with min | 53 | 24 | 1963 | 11 |
| -40 C (-40 F): Days with min | 8 | 2 | 1948 | 1 |
| 20 C (68 F): Tropical nights (min | 27 | 4 | 1955 | 4 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 56 | 39 | 1951 | 26 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 56 | 9 | 1922 | 3 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 37 | 3 | 1938 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 3 | 1 | 1942 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 35 | 9 | 1929 | 7 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 11 | 2 | 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 1912.
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).