Lake Geneva Wwtp Threshold Days by Year (USC00474457)
18 fixed thresholds counted per year at Lake Geneva Wwtp (USC00474457): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Lake Geneva Wwtp Thresholds
- Lake Geneva Wwtp: days with 10 mm (0.39 in) or more of precipitation in 65 years, most in 2019 with 50.
- Lake Geneva Wwtp: days with 25 mm (0.98 in) or more of precipitation in 65 years, most in 1954 with 14.
- Lake Geneva Wwtp: days with a maximum temperature at or above 30 C (86 F) in 60 years, most in 1988 with 74.
- Lake Geneva Wwtp: days with a maximum temperature at or above 90 F (32.2 C) in 60 years, most in 1988 with 56.
- 18 fixed thresholds have at least one qualifying day at Lake Geneva Wwtp.
Days at or above 30 C (86 F)
60 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1946 | 26 | 38.3 |
| 1947 | 38 | 38.3 |
| 1948 | 37 | 38.3 |
| 1949 | 52 | 38.3 |
| 1950 | 19 | 36.5 |
| 1951 | 20 | 36.5 |
| 1952 | 52 | 36.5 |
| 1953 | 55 | 36.5 |
| 1954 | 31 | 36.5 |
| 1955 | 56 | 36.5 |
| 1956 | 30 | 36.5 |
| 1957 | 32 | 36.5 |
| 1958 | 24 | 36.5 |
| 1959 | 46 | 36.5 |
| 1960 | 48 | 38.8 |
| 1961 | 44 | 38.8 |
| 1962 | 43 | 38.8 |
| 1963 | 37 | 38.8 |
| 1964 | 44 | 38.8 |
| 1965 | 37 | 38.8 |
| 1967 | 22 | 38.8 |
| 1968 | 40 | 38.8 |
| 1969 | 34 | 38.8 |
| 1970 | 41 | 34.6 |
| 1971 | 44 | 34.6 |
| 1972 | 34 | 34.6 |
| 1973 | 29 | 34.6 |
| 1974 | 21 | 34.6 |
| 1975 | 38 | 34.6 |
| 1976 | 40 | 34.6 |
| 1977 | 37 | 34.6 |
| 1978 | 32 | 34.6 |
| 1979 | 30 | 34.6 |
| 1980 | 25 | 41.7 |
| 1981 | 22 | 41.7 |
| 1982 | 22 | 41.7 |
| 1983 | 59 | 41.7 |
| 1984 | 39 | 41.7 |
| 1985 | 43 | 41.7 |
| 1986 | 32 | 41.7 |
| 1987 | 61 | 41.7 |
| 1988 | 74 | 41.7 |
| 1989 | 40 | 41.7 |
| 1990 | 38 | 42.9 |
| 1991 | 71 | 42.9 |
| 1992 | 20 | 42.9 |
| 1993 | 31 | 42.9 |
| 1994 | 44 | 42.9 |
| 1995 | 58 | 42.9 |
| 1996 | 31 | 42.9 |
| 1997 | 35 | 42.9 |
| 1998 | 52 | 42.9 |
| 1999 | 49 | 42.9 |
| 2000 | 28 | 46.7 |
| 2001 | 51 | 46.7 |
| 2002 | 61 | 46.7 |
| 2023 | 27 | 28.5 |
| 2024 | 27 | 28.5 |
| 2025 | 29 | 28.5 |
| 2026 | 31 | 28.5 |
| Year | First date | Last date |
|---|---|---|
| 1946 | 1946-06-16 | 1946-09-06 |
| 1947 | 1947-06-26 | 1947-09-20 |
| 1948 | 1948-06-02 | 1948-09-19 |
| 1949 | 1949-05-04 | 1949-08-27 |
| 1950 | 1950-05-24 | 1950-08-16 |
| 1951 | 1951-05-16 | 1951-09-12 |
| 1952 | 1952-04-27 | 1952-09-28 |
| 1953 | 1953-05-09 | 1953-09-29 |
| 1954 | 1954-06-08 | 1954-09-27 |
| 1955 | 1955-05-03 | 1955-09-18 |
| 1956 | 1956-05-11 | 1956-08-27 |
| 1957 | 1957-06-15 | 1957-09-01 |
| 1958 | 1958-05-17 | 1958-08-30 |
| 1959 | 1959-05-02 | 1959-09-22 |
| 1960 | 1960-04-23 | 1960-09-08 |
| 1961 | 1961-05-12 | 1961-09-11 |
| 1962 | 1962-04-26 | 1962-09-12 |
| 1963 | 1963-05-08 | 1963-09-18 |
| 1964 | 1964-05-18 | 1964-09-10 |
| 1965 | 1965-05-07 | 1965-09-19 |
| 1967 | 1967-05-26 | 1967-09-20 |
| 1968 | 1968-05-15 | 1968-09-21 |
| 1969 | 1969-05-04 | 1969-08-31 |
| 1970 | 1970-05-21 | 1970-09-07 |
| 1971 | 1971-06-04 | 1971-10-02 |
| 1972 | 1972-05-18 | 1972-08-31 |
| 1973 | 1973-07-01 | 1973-09-03 |
| 1974 | 1974-06-20 | 1974-08-26 |
| 1975 | 1975-05-18 | 1975-10-13 |
| 1976 | 1976-06-07 | 1976-09-08 |
| 1977 | 1977-04-16 | 1977-09-04 |
| 1978 | 1978-05-26 | 1978-09-19 |
| 1979 | 1979-05-10 | 1979-09-12 |
| 1980 | 1980-04-22 | 1980-09-08 |
| 1981 | 1981-06-05 | 1981-08-31 |
| 1982 | 1982-05-14 | 1982-10-06 |
| 1983 | 1983-06-10 | 1983-09-10 |
| 1984 | 1984-06-05 | 1984-09-24 |
| 1985 | 1985-04-21 | 1985-09-19 |
| 1986 | 1986-04-26 | 1986-09-27 |
| 1987 | 1987-04-20 | 1987-09-27 |
| 1988 | 1988-05-21 | 1988-09-18 |
| 1989 | 1989-05-23 | 1989-09-08 |
| 1990 | 1990-04-25 | 1990-09-13 |
| 1991 | 1991-05-11 | 1991-09-15 |
| 1992 | 1992-05-01 | 1992-08-25 |
| 1993 | 1993-05-08 | 1993-08-30 |
| 1994 | 1994-05-21 | 1994-09-15 |
| 1995 | 1995-06-06 | 1995-09-05 |
| 1996 | 1996-05-17 | 1996-09-05 |
| 1997 | 1997-06-13 | 1997-10-07 |
| 1998 | 1998-05-14 | 1998-09-26 |
| 1999 | 1999-05-28 | 1999-09-26 |
| 2000 | 2000-06-08 | 2000-09-18 |
| 2001 | 2001-05-15 | 2001-09-07 |
| 2002 | 2002-04-16 | 2002-09-11 |
| 2023 | 2023-05-31 | 2023-09-06 |
| 2024 | 2024-05-19 | 2024-09-22 |
| 2025 | 2025-05-16 | 2025-10-05 |
| 2026 | 2026-05-27 | 2026-10-13 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 60 | 74 | 1988 | 31 |
| 35 C (95 F): Days | 46 | 33 | 1988 | 1 |
| 40 C (104 F): Days | 2 | 3 | 1988 | 1 |
| 90 F (32.2 C): Days | 60 | 56 | 1988 | 11 |
| 100 F (37.8 C): Days | 9 | 15 | 1988 | 1 |
| 0 C (32 F): Ice days (max | 60 | 78 | 1978 | 34 |
| 0 C (32 F): Frost days (min | 60 | 160 | 1969 | 93 |
| -10 C (14 F): Days with min | 60 | 74 | 1978 | 37 |
| -20 C (-4 F): Days with min | 59 | 28 | 1963 | 9 |
| -30 C (-22 F): Days with min | 7 | 3 | 1994 | 1 |
| 20 C (68 F): Tropical nights (min | 60 | 37 | 1983 | 15 |
| 25 C (77 F): Days with min | 12 | 6 | 1988 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 65 | 50 | 2019 | 34 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 65 | 14 | 1954 | 16 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 46 | 4 | 1950 | 3 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 0 | n/a | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 60 | 7 | 2019 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 11 | 1 | 1959 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1946.
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 (2026-10-17).