Geneva 4 SW Threshold Days by Year (USC00333094)
16 fixed thresholds counted per year at Geneva 4 SW (USC00333094): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Geneva 4 SW Thresholds
- Geneva 4 SW: days with a maximum temperature at or above 30 C (86 F) in 25 years, most in 1919 with 50.
- Geneva 4 SW: days with a maximum temperature at or below 0 C (32 F) in 25 years, most in 1960 with 65.
- Geneva 4 SW: nights with a minimum temperature at or below 0 C (32 F) in 25 years, most in 1917 with 151.
- Geneva 4 SW: nights with a minimum temperature at or below -10 C (14 F) in 25 years, most in 1917 with 53.
- 16 fixed thresholds have at least one qualifying day at Geneva 4 SW.
Days at or above 30 C (86 F)
25 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1916 | 40 | 36.3 |
| 1917 | 19 | 36.3 |
| 1919 | 50 | 36.3 |
| 1944 | 28 | 21 |
| 1945 | 16 | 21 |
| 1946 | 17 | 21 |
| 1947 | 21 | 21 |
| 1948 | 13 | 21 |
| 1949 | 31 | 21 |
| 1950 | 3 | 19.3 |
| 1951 | 10 | 19.3 |
| 1952 | 37 | 19.3 |
| 1953 | 25 | 19.3 |
| 1954 | 24 | 19.3 |
| 1955 | 38 | 19.3 |
| 1956 | 10 | 19.3 |
| 1957 | 16 | 19.3 |
| 1958 | 3 | 19.3 |
| 1959 | 27 | 19.3 |
| 1960 | 9 | 12.7 |
| 1961 | 5 | 12.7 |
| 1962 | 11 | 12.7 |
| 1963 | 13 | 12.7 |
| 1964 | 25 | 12.7 |
| 1965 | 13 | 12.7 |
| Year | First date | Last date |
|---|---|---|
| 1916 | 1916-07-02 | 1916-09-07 |
| 1917 | 1917-06-13 | 1917-08-22 |
| 1919 | 1919-05-30 | 1919-10-04 |
| 1944 | 1944-05-26 | 1944-08-16 |
| 1945 | 1945-06-14 | 1945-09-08 |
| 1946 | 1946-06-26 | 1946-09-28 |
| 1947 | 1947-06-10 | 1947-09-11 |
| 1948 | 1948-06-23 | 1948-09-17 |
| 1949 | 1949-05-04 | 1949-10-10 |
| 1950 | 1950-06-23 | 1950-08-17 |
| 1951 | 1951-06-24 | 1951-10-05 |
| 1952 | 1952-06-06 | 1952-10-01 |
| 1953 | 1953-06-05 | 1953-10-03 |
| 1954 | 1954-06-10 | 1954-09-29 |
| 1955 | 1955-06-06 | 1955-09-19 |
| 1956 | 1956-05-30 | 1956-08-31 |
| 1957 | 1957-05-08 | 1957-09-03 |
| 1958 | 1958-07-02 | 1958-07-05 |
| 1959 | 1959-05-05 | 1959-09-28 |
| 1960 | 1960-06-05 | 1960-09-07 |
| 1961 | 1961-06-12 | 1961-09-13 |
| 1962 | 1962-05-14 | 1962-09-13 |
| 1963 | 1963-06-26 | 1963-10-07 |
| 1964 | 1964-05-23 | 1964-09-10 |
| 1965 | 1965-06-28 | 1965-09-22 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 25 | 50 | 1919 | 13 |
| 35 C (95 F): Days | 8 | 6 | 1919 | 2 |
| 90 F (32.2 C): Days | 19 | 27 | 1919 | 6 |
| 0 C (32 F): Ice days (max | 25 | 65 | 1960 | 38 |
| 0 C (32 F): Frost days (min | 25 | 151 | 1917 | 143 |
| -10 C (14 F): Days with min | 25 | 53 | 1917 | 28 |
| -20 C (-4 F): Days with min | 12 | 8 | 1917 | 1 |
| 20 C (68 F): Tropical nights (min | 25 | 31 | 1959 | 14 |
| 25 C (77 F): Days with min | 3 | 2 | 1944 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 24 | 43 | 1917 | 34 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 24 | 11 | 1947 | 8 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 14 | 2 | 1947 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1954 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 20 | 12 | 1951 | 4 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 3 | 2 | 1962 | 2 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 1 | 1 | 1962 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1916.
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).