Geneva Exp STN Threshold Days by Year (USC00303177)
18 fixed thresholds counted per year at Geneva Exp STN (USC00303177): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Geneva Exp STN Thresholds
- Geneva Exp STN: days with a maximum temperature at or above 30 C (86 F) in 56 years, most in 1921 with 58.
- Geneva Exp STN: days with a maximum temperature at or above 90 F (32.2 C) in 56 years, most in 1955 with 35.
- Geneva Exp STN: days with a maximum temperature at or below 0 C (32 F) in 56 years, most in 1968 with 62.
- Geneva Exp STN: nights with a minimum temperature at or below 0 C (32 F) in 56 years, most in 1926 with 158.
- 18 fixed thresholds have at least one qualifying day at Geneva Exp STN.
Days at or above 30 C (86 F)
56 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1893 | 29 | 29 |
| 1914 | 32 | 29.2 |
| 1915 | 22 | 29.2 |
| 1916 | 35 | 29.2 |
| 1917 | 16 | 29.2 |
| 1918 | 29 | 29.2 |
| 1919 | 41 | 29.2 |
| 1920 | 17 | 27.9 |
| 1921 | 58 | 27.9 |
| 1922 | 23 | 27.9 |
| 1923 | 29 | 27.9 |
| 1924 | 21 | 27.9 |
| 1925 | 30 | 27.9 |
| 1926 | 20 | 27.9 |
| 1927 | 21 | 27.9 |
| 1928 | 26 | 27.9 |
| 1929 | 34 | 27.9 |
| 1930 | 44 | 45.1 |
| 1931 | 51 | 45.1 |
| 1932 | 34 | 45.1 |
| 1933 | 50 | 45.1 |
| 1934 | 52 | 45.1 |
| 1935 | 35 | 45.1 |
| 1936 | 45 | 45.1 |
| 1937 | 40 | 45.1 |
| 1938 | 45 | 45.1 |
| 1939 | 55 | 45.1 |
| 1940 | 31 | 41.7 |
| 1941 | 52 | 41.7 |
| 1942 | 35 | 41.7 |
| 1943 | 48 | 41.7 |
| 1944 | 52 | 41.7 |
| 1945 | 42 | 41.7 |
| 1946 | 31 | 41.7 |
| 1947 | 40 | 41.7 |
| 1948 | 28 | 41.7 |
| 1949 | 58 | 41.7 |
| 1950 | 14 | 29.7 |
| 1951 | 25 | 29.7 |
| 1952 | 36 | 29.7 |
| 1953 | 39 | 29.7 |
| 1954 | 24 | 29.7 |
| 1955 | 52 | 29.7 |
| 1956 | 16 | 29.7 |
| 1957 | 23 | 29.7 |
| 1958 | 19 | 29.7 |
| 1959 | 49 | 29.7 |
| 1960 | 18 | 23.7 |
| 1961 | 25 | 23.7 |
| 1962 | 26 | 23.7 |
| 1963 | 21 | 23.7 |
| 1964 | 33 | 23.7 |
| 1965 | 26 | 23.7 |
| 1966 | 33 | 23.7 |
| 1967 | 13 | 23.7 |
| 1968 | 18 | 23.7 |
| Year | First date | Last date |
|---|---|---|
| 1893 | 1893-05-23 | 1893-08-25 |
| 1914 | 1914-05-26 | 1914-09-23 |
| 1915 | 1915-04-25 | 1915-09-17 |
| 1916 | 1916-07-07 | 1916-10-08 |
| 1917 | 1917-07-20 | 1917-08-27 |
| 1918 | 1918-06-01 | 1918-08-26 |
| 1919 | 1919-05-31 | 1919-10-04 |
| 1920 | 1920-06-01 | 1920-08-30 |
| 1921 | 1921-04-26 | 1921-09-29 |
| 1922 | 1922-05-31 | 1922-10-06 |
| 1923 | 1923-06-05 | 1923-09-02 |
| 1924 | 1924-06-20 | 1924-09-01 |
| 1925 | 1925-06-01 | 1925-09-20 |
| 1926 | 1926-06-29 | 1926-08-29 |
| 1927 | 1927-05-22 | 1927-10-02 |
| 1928 | 1928-05-04 | 1928-10-12 |
| 1929 | 1929-05-29 | 1929-09-05 |
| 1930 | 1930-05-06 | 1930-09-15 |
| 1931 | 1931-05-28 | 1931-09-22 |
| 1932 | 1932-05-16 | 1932-09-20 |
| 1933 | 1933-05-19 | 1933-09-08 |
| 1934 | 1934-05-10 | 1934-09-26 |
| 1935 | 1935-04-27 | 1935-09-25 |
| 1936 | 1936-05-07 | 1936-09-23 |
| 1937 | 1937-05-31 | 1937-10-06 |
| 1938 | 1938-04-27 | 1938-08-31 |
| 1939 | 1939-05-06 | 1939-10-10 |
| 1940 | 1940-06-03 | 1940-08-18 |
| 1941 | 1941-04-19 | 1941-10-07 |
| 1942 | 1942-05-14 | 1942-09-18 |
| 1943 | 1943-06-03 | 1943-09-07 |
| 1944 | 1944-05-03 | 1944-09-03 |
| 1945 | 1945-06-14 | 1945-09-29 |
| 1946 | 1946-04-23 | 1946-09-20 |
| 1947 | 1947-06-10 | 1947-10-07 |
| 1948 | 1948-06-24 | 1948-09-17 |
| 1949 | 1949-05-04 | 1949-10-11 |
| 1950 | 1950-06-07 | 1950-08-29 |
| 1951 | 1951-05-17 | 1951-10-06 |
| 1952 | 1952-06-18 | 1952-09-30 |
| 1953 | 1953-05-11 | 1953-10-04 |
| 1954 | 1954-06-02 | 1954-10-01 |
| 1955 | 1955-05-05 | 1955-09-20 |
| 1956 | 1956-05-23 | 1956-09-02 |
| 1957 | 1957-06-15 | 1957-08-16 |
| 1958 | 1958-05-19 | 1958-09-26 |
| 1959 | 1959-05-12 | 1959-09-30 |
| 1960 | 1960-06-05 | 1960-09-10 |
| 1961 | 1961-06-13 | 1961-09-26 |
| 1962 | 1962-04-28 | 1962-09-14 |
| 1963 | 1963-06-25 | 1963-10-08 |
| 1964 | 1964-05-23 | 1964-09-11 |
| 1965 | 1965-05-04 | 1965-09-23 |
| 1966 | 1966-06-05 | 1966-09-03 |
| 1967 | 1967-06-06 | 1967-08-17 |
| 1968 | 1968-06-09 | 1968-08-25 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 56 | 58 | 1921 | 18 |
| 35 C (95 F): Days | 42 | 15 | 1933 | 2 |
| 40 C (104 F): Days | 2 | 3 | 1936 | 3 |
| 90 F (32.2 C): Days | 56 | 35 | 1955 | 3 |
| 100 F (37.8 C): Days | 11 | 4 | 1931 | 1 |
| 0 C (32 F): Ice days (max | 56 | 62 | 1968 | 62 |
| 0 C (32 F): Frost days (min | 56 | 158 | 1926 | 132 |
| -10 C (14 F): Days with min | 56 | 55 | 1963 | 54 |
| -20 C (-4 F): Days with min | 39 | 11 | 1934 | 8 |
| -30 C (-22 F): Days with min | 2 | 2 | 1957 | 2 |
| 20 C (68 F): Tropical nights (min | 56 | 18 | 1955 | 8 |
| 25 C (77 F): Days with min | 3 | 2 | 1917 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 43 | 37 | 1968 | 37 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 42 | 10 | 1927 | 5 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 15 | 3 | 1955 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1938 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 39 | 7 | 1926 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 11 | 2 | 1941 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1893.
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).