St Louis St Louis UNIV Threshold Days by Year (USC00237465)
20 fixed thresholds counted per year at St Louis St Louis UNIV (USC00237465): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for St Louis St Louis UNIV Thresholds
- St Louis St Louis UNIV: days with a maximum temperature at or above 30 C (86 F) in 52 years, most in 1953 with 107.
- St Louis St Louis UNIV: days with a maximum temperature at or above 90 F (32.2 C) in 52 years, most in 1954 with 82.
- St Louis St Louis UNIV: days with a maximum temperature at or below 0 C (32 F) in 52 years, most in 1963 with 43.
- St Louis St Louis UNIV: nights with a minimum temperature at or below 0 C (32 F) in 52 years, most in 1960 with 108.
- 20 fixed thresholds have at least one qualifying day at St Louis St Louis UNIV.
Days at or above 30 C (86 F)
52 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1915 | 39 | 61.8 |
| 1916 | 70 | 61.8 |
| 1917 | 54 | 61.8 |
| 1918 | 68 | 61.8 |
| 1919 | 78 | 61.8 |
| 1920 | 58 | 61.8 |
| 1921 | 87 | 61.8 |
| 1922 | 77 | 61.8 |
| 1923 | 57 | 61.8 |
| 1924 | 44 | 61.8 |
| 1925 | 80 | 61.8 |
| 1926 | 67 | 61.8 |
| 1927 | 42 | 61.8 |
| 1928 | 53 | 61.8 |
| 1929 | 53 | 61.8 |
| 1930 | 69 | 80.2 |
| 1931 | 85 | 80.2 |
| 1932 | 64 | 80.2 |
| 1933 | 87 | 80.2 |
| 1934 | 85 | 80.2 |
| 1935 | 62 | 80.2 |
| 1936 | 102 | 80.2 |
| 1937 | 82 | 80.2 |
| 1938 | 85 | 80.2 |
| 1939 | 81 | 80.2 |
| 1940 | 77 | 71.1 |
| 1941 | 91 | 71.1 |
| 1942 | 64 | 71.1 |
| 1943 | 73 | 71.1 |
| 1944 | 86 | 71.1 |
| 1945 | 54 | 71.1 |
| 1946 | 67 | 71.1 |
| 1947 | 67 | 71.1 |
| 1948 | 67 | 71.1 |
| 1949 | 65 | 71.1 |
| 1950 | 42 | 75.6 |
| 1951 | 57 | 75.6 |
| 1952 | 92 | 75.6 |
| 1953 | 107 | 75.6 |
| 1954 | 104 | 75.6 |
| 1955 | 86 | 75.6 |
| 1956 | 81 | 75.6 |
| 1957 | 59 | 75.6 |
| 1958 | 50 | 75.6 |
| 1959 | 78 | 75.6 |
| 1960 | 65 | 65.1 |
| 1961 | 67 | 65.1 |
| 1962 | 69 | 65.1 |
| 1963 | 76 | 65.1 |
| 1964 | 60 | 65.1 |
| 1965 | 57 | 65.1 |
| 1966 | 62 | 65.1 |
| Year | First date | Last date |
|---|---|---|
| 1915 | 1915-04-23 | 1915-09-26 |
| 1916 | 1916-04-12 | 1916-10-08 |
| 1917 | 1917-05-19 | 1917-10-15 |
| 1918 | 1918-05-09 | 1918-10-05 |
| 1919 | 1919-05-29 | 1919-10-02 |
| 1920 | 1920-05-22 | 1920-09-26 |
| 1921 | 1921-05-20 | 1921-09-29 |
| 1922 | 1922-05-11 | 1922-10-05 |
| 1923 | 1923-06-04 | 1923-09-29 |
| 1924 | 1924-04-16 | 1924-09-21 |
| 1925 | 1925-04-21 | 1925-09-20 |
| 1926 | 1926-05-24 | 1926-10-03 |
| 1927 | 1927-06-11 | 1927-10-06 |
| 1928 | 1928-05-03 | 1928-10-12 |
| 1929 | 1929-03-24 | 1929-09-29 |
| 1930 | 1930-04-10 | 1930-09-22 |
| 1931 | 1931-05-16 | 1931-10-04 |
| 1932 | 1932-05-04 | 1932-09-18 |
| 1933 | 1933-04-30 | 1933-09-30 |
| 1934 | 1934-05-09 | 1934-09-26 |
| 1935 | 1935-06-13 | 1935-09-24 |
| 1936 | 1936-04-14 | 1936-09-22 |
| 1937 | 1937-04-17 | 1937-10-05 |
| 1938 | 1938-04-19 | 1938-10-15 |
| 1939 | 1939-05-17 | 1939-10-23 |
| 1940 | 1940-03-31 | 1940-10-25 |
| 1941 | 1941-04-12 | 1941-10-06 |
| 1942 | 1942-04-30 | 1942-09-30 |
| 1943 | 1943-05-05 | 1943-09-05 |
| 1944 | 1944-05-12 | 1944-10-06 |
| 1945 | 1945-05-26 | 1945-09-28 |
| 1946 | 1946-04-01 | 1946-10-07 |
| 1947 | 1947-05-15 | 1947-09-20 |
| 1948 | 1948-04-07 | 1948-09-20 |
| 1949 | 1949-05-02 | 1949-10-08 |
| 1950 | 1950-04-23 | 1950-10-31 |
| 1951 | 1951-04-28 | 1951-10-04 |
| 1952 | 1952-04-29 | 1952-10-01 |
| 1953 | 1953-04-09 | 1953-10-19 |
| 1954 | 1954-04-05 | 1954-10-10 |
| 1955 | 1955-03-10 | 1955-09-29 |
| 1956 | 1956-04-27 | 1956-10-01 |
| 1957 | 1957-04-24 | 1957-09-03 |
| 1958 | 1958-05-17 | 1958-09-25 |
| 1959 | 1959-04-07 | 1959-09-22 |
| 1960 | 1960-04-24 | 1960-09-23 |
| 1961 | 1961-04-24 | 1961-09-23 |
| 1962 | 1962-05-11 | 1962-10-13 |
| 1963 | 1963-03-30 | 1963-10-20 |
| 1964 | 1964-04-17 | 1964-09-21 |
| 1965 | 1965-04-12 | 1965-09-19 |
| 1966 | 1966-05-06 | 1966-09-05 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 52 | 107 | 1953 | 62 |
| 35 C (95 F): Days | 49 | 51 | 1936 | 12 |
| 40 C (104 F): Days | 7 | 9 | 1936 | 1 |
| 45 C (113 F): Days | 1 | 1 | 1954 | 1 |
| 90 F (32.2 C): Days | 52 | 82 | 1954 | 34 |
| 100 F (37.8 C): Days | 28 | 32 | 1936 | 7 |
| 110 F (43.3 C): Days | 2 | 2 | 1954 | 2 |
| 0 C (32 F): Ice days (max | 52 | 43 | 1963 | 33 |
| 0 C (32 F): Frost days (min | 52 | 108 | 1960 | 85 |
| -10 C (14 F): Days with min | 52 | 43 | 1963 | 15 |
| -20 C (-4 F): Days with min | 19 | 7 | 1936 | 2 |
| 20 C (68 F): Tropical nights (min | 52 | 96 | 1959 | 55 |
| 25 C (77 F): Days with min | 51 | 34 | 1936 | 11 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 52 | 46 | 1927 | 22 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 52 | 18 | 1946 | 6 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 39 | 8 | 1946 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 9 | 1 | 1915 | 1 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 1 | 1 | 1915 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 23 | 3 | 1939 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 1 | 1 | 1926 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1915.
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).