Lake Geneva Wwtp Weather Records (USC00474457)
Record envelope, standing records and threshold days for Lake Geneva Wwtp (USC00474457), Wisconsin, United States, with 82 years of record.
Key Facts for Lake Geneva Wwtp
- Lake Geneva Wwtp (USC00474457) is a weather station in Wisconsin, United States at 42.60 latitude and -88.43 longitude, 258 m (846 ft) above sea level.
- The station reports from 1945 to 2026, 82 years of record.
- 1,464 records set at Lake Geneva Wwtp still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Lake Geneva Wwtp set a daily record precipitation of 18.0 mm (0.7 in) on 12 August 2026.
About the Station
- Location: Wisconsin, United States, 42.60 latitude, -88.43 longitude.
- Elevation: 258 m (846 ft).
- Period of record: 1945 to 2026, 82 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
12 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 15.0 C (59.0 F) | -32.8 C (-27.0 F) | 13.9 C (57.0 F) | -27.8 C (-18.0 F) |
| Feb | 23.3 C (73.9 F) | -31.7 C (-25.1 F) | 17.2 C (63.0 F) | -20.6 C (-5.1 F) |
| Mar | 27.2 C (81.0 F) | -26.1 C (-15.0 F) | 25.6 C (78.1 F) | -13.9 C (7.0 F) |
| Apr | 32.2 C (90.0 F) | -12.8 C (9.0 F) | 27.2 C (81.0 F) | -5.6 C (21.9 F) |
| May | 34.4 C (93.9 F) | -3.3 C (26.1 F) | 30.6 C (87.1 F) | -2.2 C (28.0 F) |
| Jun | 40.0 C (104.0 F) | 1.1 C (34.0 F) | 32.8 C (91.0 F) | 5.6 C (42.1 F) |
| Jul | 40.0 C (104.0 F) | 3.9 C (39.0 F) | 35.0 C (95.0 F) | 10.0 C (50.0 F) |
| Aug | 41.1 C (106.0 F) | 4.4 C (39.9 F) | 30.0 C (86.0 F) | 10.0 C (50.0 F) |
| Sep | 37.8 C (100.0 F) | -2.2 C (28.0 F) | 32.8 C (91.0 F) | 5.6 C (42.1 F) |
| Oct | 30.6 C (87.1 F) | -8.3 C (17.1 F) | 23.9 C (75.0 F) | 2.2 C (36.0 F) |
| Nov | 23.9 C (75.0 F) | -21.1 C (-6.0 F) | n/a | n/a |
| Dec | 19.4 C (66.9 F) | -30.6 C (-23.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1945 | 23 |
| 1946 | 31 |
| 1947 | 37 |
| 1948 | 15 |
| 1949 | 24 |
| 1950 | 37 |
| 1951 | 28 |
| 1952 | 20 |
| 1953 | 30 |
| 1954 | 17 |
| 1955 | 25 |
| 1956 | 21 |
| 1957 | 13 |
| 1958 | 22 |
| 1959 | 27 |
| 1960 | 21 |
| 1961 | 15 |
| 1962 | 31 |
| 1963 | 34 |
| 1964 | 29 |
| 1965 | 36 |
| 1966 | 18 |
| 1967 | 30 |
| 1968 | 33 |
| 1969 | 29 |
| 1970 | 17 |
| 1971 | 21 |
| 1972 | 30 |
| 1973 | 18 |
| 1974 | 22 |
| 1975 | 19 |
| 1976 | 24 |
| 1977 | 30 |
| 1978 | 13 |
| 1979 | 19 |
| 1980 | 9 |
| 1981 | 16 |
| 1982 | 22 |
| 1983 | 27 |
| 1984 | 22 |
| 1985 | 19 |
| 1986 | 17 |
| 1987 | 10 |
| 1988 | 44 |
| 1989 | 28 |
| 1990 | 23 |
| 1991 | 36 |
| 1992 | 20 |
| 1993 | 12 |
| 1994 | 23 |
| 1995 | 21 |
| 1996 | 20 |
| 1997 | 20 |
| 1998 | 25 |
| 1999 | 31 |
| 2000 | 26 |
| 2001 | 17 |
| 2002 | 26 |
| 2003 | 9 |
| 2022 | 3 |
| 2023 | 17 |
| 2024 | 20 |
| 2025 | 24 |
| 2026 | 18 |
All-Time Record Progression
12 new records| Date | Kind | Detail |
|---|---|---|
| 1978-01-26 | Record daily snowfall | Record daily snowfall 33.5 cm (13.2 in) |
| 1978-07-20 | Record daily precipitation | Record daily precipitation 98.6 mm (3.9 in) |
| 1979-02-01 | Record snow depth | Record snow depth 76.2 cm (30.0 in) |
| 1982-01-10 | Record low minimum temperature | Record low minimum temperature -31.7 C (-25.1 F) |
| 1983-12-24 | Record low maximum temperature | Record low maximum temperature -23.3 C (-9.9 F) |
| 1985-01-20 | Record low minimum temperature | Record low minimum temperature -32.8 C (-27.0 F) |
| 1988-06-20 | Record high maximum temperature | Record high maximum temperature 40.0 C (104.0 F) |
| 1988-08-01 | Record high maximum temperature | Record high maximum temperature 41.1 C (106.0 F) |
| 1988-08-17 | Record high minimum temperature | Record high minimum temperature 26.1 C (79.0 F) |
| 1994-01-18 | Record low maximum temperature | Record low maximum temperature -23.9 C (-11.0 F) |
| 1995-07-14 | Record high minimum temperature | Record high minimum temperature 26.7 C (80.1 F) |
| 2022-09-12 | Record daily precipitation | Record daily precipitation 126.0 mm (5.0 in) |
Wettest Day of Each Month
Sep: 126.0 mm (5.0 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 61.2 mm (2.4 in) | 12 January 1960 |
| Feb | 54.6 mm (2.1 in) | 9 February 2001 |
| Mar | 80.8 mm (3.2 in) | 11 March 2026 |
| Apr | 56.9 mm (2.2 in) | 18 April 2026 |
| May | 75.9 mm (3.0 in) | 18 May 2000 |
| Jun | 79.8 mm (3.1 in) | 19 June 2018 |
| Jul | 98.6 mm (3.9 in) | 20 July 1978 |
| Aug | 76.2 mm (3.0 in) | 9 August 1995 |
| Sep | 126.0 mm (5.0 in) | 12 September 2022 |
| Oct | 68.6 mm (2.7 in) | 4 October 1991 |
| Nov | 59.2 mm (2.3 in) | 17 November 1952 |
| Dec | 67.3 mm (2.6 in) | 2 December 1982 |
Period of Record Coverage
1945 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1945 | 265 | 73% | No |
| 1946 | 365 | 100% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 366 | 100% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 364 | 99% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 365 | 100% | Yes |
| 1957 | 364 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 365 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 303 | 83% | No |
| 1967 | 365 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 364 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 335 | 92% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 364 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 335 | 92% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 364 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 364 | 100% | Yes |
| 1999 | 364 | 100% | Yes |
| 2000 | 364 | 99% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 362 | 99% | Yes |
| 2003 | 171 | 47% | No |
| 2022 | 72 | 20% | No |
| 2023 | 363 | 99% | Yes |
| 2024 | 362 | 99% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 283 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 12 August 2026 | Lake Geneva Wwtp, US | daily rain | 18.0 mm (0.7 in) | 2.3 mm (0.09 in) | 28 years | 17 of 100 (Routine) |
| 2 August 2026 | Lake Geneva Wwtp, US | daily low max | 20.6 C (69.1 F) | 1.6 C (2.9 F) | 76 years | 34 of 100 (Routine) |
| 1 August 2026 | Lake Geneva Wwtp, US | daily rain | 34.5 mm (1.4 in) | 19.3 mm (0.8 in) | 80 years | 47 of 100 (Notable) |
| 4 July 2026 | Lake Geneva Wwtp, US | daily rain | 26.7 mm (1.1 in) | 1.3 mm (0.05 in) | 43 years | 20 of 100 (Routine) |
| 30 June 2026 | Lake Geneva Wwtp, US | daily high min | 25.0 C (77.0 F) | 1.7 C (3.1 F) | 56 years | 27 of 100 (Routine) |
| 18 June 2026 | Lake Geneva Wwtp, US | daily rain | 35.3 mm (1.4 in) | 0.2 mm (0.01 in) | 41 years | 20 of 100 (Routine) |
| 14 May 2026 | Lake Geneva Wwtp, US | daily low min (Tie) | 1.1 C (34.0 F) | tie | 80 years | 8 of 100 (Routine) |
| 2 May 2026 | Lake Geneva Wwtp, US | daily low min | -2.2 C (28.0 F) | 1.1 C (2.0 F) | 76 years | 32 of 100 (Routine) |
| 18 April 2026 | Lake Geneva Wwtp, US | monthly rain | 56.9 mm (2.2 in) | 2.3 mm (0.09 in) | 54 years | 36 of 100 (Notable) |
| 14 April 2026 | Lake Geneva Wwtp, US | daily high min | 13.3 C (55.9 F) | 0.5 C (0.9 F) | 59 years | 26 of 100 (Routine) |
| 13 April 2026 | Lake Geneva Wwtp, US | daily high min | 14.4 C (57.9 F) | 1.1 C (2.0 F) | 71 years | 31 of 100 (Routine) |
| 10 April 2026 | Lake Geneva Wwtp, US | daily rain | 22.4 mm (0.9 in) | 4.6 mm (0.18 in) | 48 years | 20 of 100 (Routine) |
| 4 April 2026 | Lake Geneva Wwtp, US | daily rain | 30.0 mm (1.2 in) | 10.9 mm (0.4 in) | 56 years | 36 of 100 (Notable) |
| 22 March 2026 | Lake Geneva Wwtp, US | daily high max | 22.2 C (72.0 F) | 5.0 C (9.0 F) | 72 years | 36 of 100 (Notable) |
| 18 March 2026 | Lake Geneva Wwtp, US | daily low max | -4.4 C (24.1 F) | 2.2 C (4.0 F) | 36 years | 22 of 100 (Routine) |
| 17 March 2026 | Lake Geneva Wwtp, US | daily low min (Tie) | -13.9 C (7.0 F) | tie | 59 years | 6 of 100 (Routine) |
| 16 March 2026 | Lake Geneva Wwtp, US | daily rain | 54.1 mm (2.1 in) | 42.4 mm (1.7 in) | 44 years | 61 of 100 (Major) |
| 16 March 2026 | Lake Geneva Wwtp, US | daily snowfall | 14.0 cm (5.5 in) | 6.4 cm (2.5 in) | 65 years | 40 of 100 (Notable) |
| 11 March 2026 | Lake Geneva Wwtp, US | monthly rain | 80.8 mm (3.2 in) | 24.7 mm (1.0 in) | 50 years | 65 of 100 (Major) |
| 10 March 2026 | Lake Geneva Wwtp, US | daily high min | 5.6 C (42.1 F) | 3.4 C (6.1 F) | 59 years | 31 of 100 (Routine) |
Climate Trend
57 complete years, 1946 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1946 | 9.4 C | +0.32 C |
| 1947 | 8.4 C | -0.69 C |
| 1948 | 8.6 C | -0.45 C |
| 1949 | 9.7 C | +0.63 C |
| 1950 | 7.8 C | -1.32 C |
| 1951 | 7.7 C | -1.40 C |
| 1952 | 9.6 C | +0.46 C |
| 1953 | 10.4 C | +1.26 C |
| 1954 | 9.8 C | +0.74 C |
| 1955 | 9.8 C | +0.73 C |
| 1956 | 9.6 C | +0.50 C |
| 1957 | 8.7 C | -0.43 C |
| 1958 | 8.3 C | -0.77 C |
| 1959 | 8.7 C | -0.43 C |
| 1960 | 8.7 C | -0.39 C |
| 1961 | 9.2 C | +0.08 C |
| 1962 | 8.5 C | -0.60 C |
| 1963 | 8.2 C | -0.86 C |
| 1964 | 9.3 C | +0.24 C |
| 1965 | 8.7 C | -0.44 C |
| 1967 | 8.2 C | -0.89 C |
| 1968 | 9.2 C | +0.12 C |
| 1969 | 8.3 C | -0.79 C |
| 1970 | 8.4 C | -0.73 C |
| 1971 | 9.0 C | -0.14 C |
| 1972 | 7.7 C | -1.38 C |
| 1974 | 8.8 C | -0.25 C |
| 1975 | 9.3 C | +0.18 C |
| 1976 | 8.4 C | -0.71 C |
| 1977 | 9.0 C | -0.06 C |
| 1978 | 8.1 C | -0.96 C |
| 1979 | 8.1 C | -0.98 C |
| 1981 | 9.3 C | +0.22 C |
| 1982 | 8.5 C | -0.59 C |
| 1983 | 9.4 C | +0.33 C |
| 1984 | 9.3 C | +0.16 C |
| 1985 | 8.8 C | -0.33 C |
| 1986 | 9.2 C | +0.07 C |
| 1987 | 10.6 C | +1.50 C |
| 1988 | 9.8 C | +0.67 C |
| 1989 | 8.5 C | -0.60 C |
| 1990 | 10.1 C | +1.05 C |
| 1991 | 10.0 C | +0.90 C |
| 1992 | 8.8 C | -0.34 C |
| 1993 | 8.6 C | -0.45 C |
| 1994 | 9.1 C | -0.04 C |
| 1995 | 9.0 C | -0.06 C |
| 1996 | 8.1 C | -1.01 C |
| 1997 | 9.0 C | -0.14 C |
| 1998 | 11.7 C | +2.56 C |
| 1999 | 10.7 C | +1.61 C |
| 2000 | 9.8 C | +0.69 C |
| 2001 | 10.3 C | +1.20 C |
| 2002 | 10.4 C | +1.33 C |
| 2023 | 9.5 C | +0.45 C |
| 2024 | 10.1 C | +0.98 C |
| 2025 | 8.6 C | -0.54 C |
The annual mean temperature here has risen by 0.13 C (0.02 to 0.24) per decade over 1946 to 2025. In Fahrenheit: 0.23 F (0.04 to 0.42) per decade. The slope is a straight line fitted to 57 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.13 C (0.02 to 0.24) per decade | 0.23 F (0.04 to 0.42) per decade | 1946 to 2025 | 57 | Rise |
| Mean daily maximum | 0.13 C (0.02 to 0.25) per decade | 0.24 F (0.03 to 0.44) per decade | 1946 to 2025 | 57 | Rise |
| Mean daily minimum | 0.13 C (0.01 to 0.24) per decade | 0.23 F (0.02 to 0.43) per decade | 1946 to 2025 | 57 | Rise |
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1945 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 41.1 C (106.0 F) | 1988 | 36.1 C (97.0 F) | 64 |
| Coldest night (TNn) | -32.8 C (-27.0 F) | 1985 | -25.0 C (-13.0 F) | 64 |
| Wettest day (Rx1day) | 126.0 mm (5.0 in) | 2022 | 57.7 mm (2.3 in) | 69 |
| Wettest five days (Rx5day) | 194.8 mm (7.7 in) | 2019 | 87.7 mm (3.5 in) | 69 |
| Longest dry spell (CDD) | 46 days | 1952 | 20 days | 69 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1945 | 36.1 C (97.0 F) |
| 1946 | 35.6 C (96.1 F) |
| 1947 | 37.2 C (99.0 F) |
| 1948 | 35.6 C (96.1 F) |
| 1949 | 36.7 C (98.1 F) |
| 1950 | 33.3 C (91.9 F) |
| 1951 | 33.3 C (91.9 F) |
| 1952 | 35.6 C (96.1 F) |
| 1953 | 37.8 C (100.0 F) |
| 1954 | 35.6 C (96.1 F) |
| 1955 | 38.3 C (100.9 F) |
| 1956 | 36.7 C (98.1 F) |
| 1957 | 33.9 C (93.0 F) |
| 1958 | 35.6 C (96.1 F) |
| 1959 | 34.4 C (93.9 F) |
| 1960 | 36.7 C (98.1 F) |
| 1961 | 35.0 C (95.0 F) |
| 1962 | 35.0 C (95.0 F) |
| 1963 | 36.7 C (98.1 F) |
| 1964 | 37.2 C (99.0 F) |
| 1965 | 37.8 C (100.0 F) |
| 1966 | 38.9 C (102.0 F) |
| 1967 | 34.4 C (93.9 F) |
| 1968 | 36.1 C (97.0 F) |
| 1969 | 33.3 C (91.9 F) |
| 1970 | 35.6 C (96.1 F) |
| 1971 | 35.0 C (95.0 F) |
| 1972 | 34.4 C (93.9 F) |
| 1973 | 35.6 C (96.1 F) |
| 1974 | 36.1 C (97.0 F) |
| 1975 | 34.4 C (93.9 F) |
| 1976 | 36.1 C (97.0 F) |
| 1977 | 36.7 C (98.1 F) |
| 1978 | 36.7 C (98.1 F) |
| 1979 | 33.9 C (93.0 F) |
| 1980 | 35.0 C (95.0 F) |
| 1981 | 34.4 C (93.9 F) |
| 1982 | 34.4 C (93.9 F) |
| 1983 | 37.2 C (99.0 F) |
| 1984 | 37.2 C (99.0 F) |
| 1985 | 36.1 C (97.0 F) |
| 1986 | 36.1 C (97.0 F) |
| 1987 | 38.9 C (102.0 F) |
| 1988 | 41.1 C (106.0 F) |
| 1989 | 36.7 C (98.1 F) |
| 1990 | 36.1 C (97.0 F) |
| 1991 | 38.9 C (102.0 F) |
| 1992 | 34.4 C (93.9 F) |
| 1993 | 35.0 C (95.0 F) |
| 1994 | 37.2 C (99.0 F) |
| 1995 | 40.0 C (104.0 F) |
| 1996 | 35.6 C (96.1 F) |
| 1997 | 36.1 C (97.0 F) |
| 1998 | 36.1 C (97.0 F) |
| 1999 | 39.4 C (102.9 F) |
| 2000 | 36.7 C (98.1 F) |
| 2001 | 36.7 C (98.1 F) |
| 2002 | 37.8 C (100.0 F) |
| 2003 | 31.1 C (88.0 F) |
| 2017 | n/a |
| 2018 | n/a |
| 2019 | n/a |
| 2020 | n/a |
| 2021 | n/a |
| 2022 | 25.0 C (77.0 F) |
| 2023 | 35.6 C (96.1 F) |
| 2024 | 34.4 C (93.9 F) |
| 2025 | 33.3 C (91.9 F) |
| 2026 | 35.0 C (95.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1945 | -25.6 C (-14.1 F) |
| 1946 | -23.3 C (-9.9 F) |
| 1947 | -22.2 C (-8.0 F) |
| 1948 | -25.6 C (-14.1 F) |
| 1949 | -23.9 C (-11.0 F) |
| 1950 | -25.6 C (-14.1 F) |
| 1951 | -30.6 C (-23.1 F) |
| 1952 | -23.9 C (-11.0 F) |
| 1953 | -21.1 C (-6.0 F) |
| 1954 | -25.0 C (-13.0 F) |
| 1955 | -26.1 C (-15.0 F) |
| 1956 | -20.6 C (-5.1 F) |
| 1957 | -23.9 C (-11.0 F) |
| 1958 | -25.0 C (-13.0 F) |
| 1959 | -27.8 C (-18.0 F) |
| 1960 | -23.9 C (-11.0 F) |
| 1961 | -23.3 C (-9.9 F) |
| 1962 | -27.2 C (-17.0 F) |
| 1963 | -30.6 C (-23.1 F) |
| 1964 | -19.4 C (-2.9 F) |
| 1965 | -28.9 C (-20.0 F) |
| 1966 | -30.0 C (-22.0 F) |
| 1967 | -27.8 C (-18.0 F) |
| 1968 | -27.8 C (-18.0 F) |
| 1969 | -25.6 C (-14.1 F) |
| 1970 | -27.8 C (-18.0 F) |
| 1971 | -26.7 C (-16.1 F) |
| 1972 | -29.4 C (-20.9 F) |
| 1973 | -21.7 C (-7.1 F) |
| 1974 | -24.4 C (-11.9 F) |
| 1975 | -24.4 C (-11.9 F) |
| 1976 | -25.0 C (-13.0 F) |
| 1977 | -29.4 C (-20.9 F) |
| 1978 | -23.3 C (-9.9 F) |
| 1979 | -28.3 C (-18.9 F) |
| 1980 | -21.1 C (-6.0 F) |
| 1981 | -23.9 C (-11.0 F) |
| 1982 | -31.7 C (-25.1 F) |
| 1983 | -30.6 C (-23.1 F) |
| 1984 | -28.3 C (-18.9 F) |
| 1985 | -32.8 C (-27.0 F) |
| 1986 | -24.4 C (-11.9 F) |
| 1987 | -22.8 C (-9.0 F) |
| 1988 | -26.7 C (-16.1 F) |
| 1989 | -27.8 C (-18.0 F) |
| 1990 | -22.8 C (-9.0 F) |
| 1991 | -22.2 C (-8.0 F) |
| 1992 | -23.3 C (-9.9 F) |
| 1993 | -22.2 C (-8.0 F) |
| 1994 | -32.8 C (-27.0 F) |
| 1995 | -21.7 C (-7.1 F) |
| 1996 | -31.7 C (-25.1 F) |
| 1997 | -24.4 C (-11.9 F) |
| 1998 | -20.6 C (-5.1 F) |
| 1999 | -26.1 C (-15.0 F) |
| 2000 | -24.4 C (-11.9 F) |
| 2001 | -20.0 C (-4.0 F) |
| 2002 | -21.7 C (-7.1 F) |
| 2003 | -21.7 C (-7.1 F) |
| 2017 | n/a |
| 2018 | n/a |
| 2019 | n/a |
| 2020 | n/a |
| 2021 | n/a |
| 2022 | -24.4 C (-11.9 F) |
| 2023 | -25.0 C (-13.0 F) |
| 2024 | -25.0 C (-13.0 F) |
| 2025 | -24.4 C (-11.9 F) |
| 2026 | -27.8 C (-18.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1945 | 69.9 mm (2.8 in) |
| 1946 | 40.9 mm (1.6 in) |
| 1947 | 53.8 mm (2.1 in) |
| 1948 | 57.9 mm (2.3 in) |
| 1949 | 55.4 mm (2.2 in) |
| 1950 | 71.4 mm (2.8 in) |
| 1951 | 50.0 mm (2.0 in) |
| 1952 | 88.9 mm (3.5 in) |
| 1953 | 35.6 mm (1.4 in) |
| 1954 | 50.8 mm (2.0 in) |
| 1955 | 45.2 mm (1.8 in) |
| 1956 | 39.9 mm (1.6 in) |
| 1957 | 60.7 mm (2.4 in) |
| 1958 | 64.3 mm (2.5 in) |
| 1959 | 78.5 mm (3.1 in) |
| 1960 | 61.2 mm (2.4 in) |
| 1961 | 74.7 mm (2.9 in) |
| 1962 | 50.8 mm (2.0 in) |
| 1963 | 66.5 mm (2.6 in) |
| 1964 | 52.3 mm (2.1 in) |
| 1965 | 57.7 mm (2.3 in) |
| 1966 | 37.3 mm (1.5 in) |
| 1967 | 72.1 mm (2.8 in) |
| 1968 | 81.3 mm (3.2 in) |
| 1969 | 71.1 mm (2.8 in) |
| 1970 | 60.2 mm (2.4 in) |
| 1971 | 61.5 mm (2.4 in) |
| 1972 | 75.7 mm (3.0 in) |
| 1973 | 52.1 mm (2.1 in) |
| 1974 | 49.8 mm (2.0 in) |
| 1975 | 48.3 mm (1.9 in) |
| 1976 | 56.1 mm (2.2 in) |
| 1977 | 37.3 mm (1.5 in) |
| 1978 | 98.6 mm (3.9 in) |
| 1979 | 41.1 mm (1.6 in) |
| 1980 | 32.5 mm (1.3 in) |
| 1981 | 41.7 mm (1.6 in) |
| 1982 | 92.7 mm (3.6 in) |
| 1983 | 51.6 mm (2.0 in) |
| 1984 | 85.9 mm (3.4 in) |
| 1985 | 59.4 mm (2.3 in) |
| 1986 | 73.9 mm (2.9 in) |
| 1987 | 52.8 mm (2.1 in) |
| 1988 | 33.8 mm (1.3 in) |
| 1989 | 77.5 mm (3.1 in) |
| 1990 | 47.0 mm (1.9 in) |
| 1991 | 68.6 mm (2.7 in) |
| 1992 | 36.6 mm (1.4 in) |
| 1993 | 49.8 mm (2.0 in) |
| 1994 | 33.0 mm (1.3 in) |
| 1995 | 76.2 mm (3.0 in) |
| 1996 | 55.9 mm (2.2 in) |
| 1997 | 72.4 mm (2.9 in) |
| 1998 | 47.0 mm (1.9 in) |
| 1999 | 82.0 mm (3.2 in) |
| 2000 | 75.9 mm (3.0 in) |
| 2001 | 72.9 mm (2.9 in) |
| 2002 | 73.7 mm (2.9 in) |
| 2003 | 24.1 mm (0.9 in) |
| 2017 | 32.3 mm (1.3 in) |
| 2018 | 79.8 mm (3.1 in) |
| 2019 | 80.8 mm (3.2 in) |
| 2020 | 74.9 mm (2.9 in) |
| 2021 | 46.2 mm (1.8 in) |
| 2022 | 126.0 mm (5.0 in) |
| 2023 | 52.1 mm (2.1 in) |
| 2024 | 40.6 mm (1.6 in) |
| 2025 | 45.2 mm (1.8 in) |
| 2026 | 80.8 mm (3.2 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1945 | 106.3 mm (4.2 in) |
| 1946 | 75.2 mm (3.0 in) |
| 1947 | 75.5 mm (3.0 in) |
| 1948 | 82.0 mm (3.2 in) |
| 1949 | 68.7 mm (2.7 in) |
| 1950 | 176.3 mm (6.9 in) |
| 1951 | 68.5 mm (2.7 in) |
| 1952 | 101.3 mm (4.0 in) |
| 1953 | 74.5 mm (2.9 in) |
| 1954 | 104.1 mm (4.1 in) |
| 1955 | 95.6 mm (3.8 in) |
| 1956 | 86.4 mm (3.4 in) |
| 1957 | 77.5 mm (3.1 in) |
| 1958 | 78.3 mm (3.1 in) |
| 1959 | 111.5 mm (4.4 in) |
| 1960 | 97.0 mm (3.8 in) |
| 1961 | 154.2 mm (6.1 in) |
| 1962 | 62.2 mm (2.4 in) |
| 1963 | 68.6 mm (2.7 in) |
| 1964 | 59.0 mm (2.3 in) |
| 1965 | 98.1 mm (3.9 in) |
| 1966 | 57.4 mm (2.3 in) |
| 1967 | 118.0 mm (4.6 in) |
| 1968 | 87.7 mm (3.5 in) |
| 1969 | 116.1 mm (4.6 in) |
| 1970 | 132.6 mm (5.2 in) |
| 1971 | 63.8 mm (2.5 in) |
| 1972 | 129.3 mm (5.1 in) |
| 1973 | 84.9 mm (3.3 in) |
| 1974 | 73.7 mm (2.9 in) |
| 1975 | 100.9 mm (4.0 in) |
| 1976 | 111.6 mm (4.4 in) |
| 1977 | 65.4 mm (2.6 in) |
| 1978 | 125.2 mm (4.9 in) |
| 1979 | 90.7 mm (3.6 in) |
| 1980 | 69.4 mm (2.7 in) |
| 1981 | 70.4 mm (2.8 in) |
| 1982 | 99.8 mm (3.9 in) |
| 1983 | 59.5 mm (2.3 in) |
| 1984 | 101.4 mm (4.0 in) |
| 1985 | 71.2 mm (2.8 in) |
| 1986 | 134.3 mm (5.3 in) |
| 1987 | 102.1 mm (4.0 in) |
| 1988 | 64.8 mm (2.6 in) |
| 1989 | 105.9 mm (4.2 in) |
| 1990 | 78.0 mm (3.1 in) |
| 1991 | 83.1 mm (3.3 in) |
| 1992 | 75.7 mm (3.0 in) |
| 1993 | 82.6 mm (3.3 in) |
| 1994 | 70.1 mm (2.8 in) |
| 1995 | 113.0 mm (4.4 in) |
| 1996 | 70.9 mm (2.8 in) |
| 1997 | 101.9 mm (4.0 in) |
| 1998 | 97.8 mm (3.9 in) |
| 1999 | 137.2 mm (5.4 in) |
| 2000 | 100.7 mm (4.0 in) |
| 2001 | 99.0 mm (3.9 in) |
| 2002 | 86.0 mm (3.4 in) |
| 2003 | 51.3 mm (2.0 in) |
| 2017 | 72.7 mm (2.9 in) |
| 2018 | 126.8 mm (5.0 in) |
| 2019 | 194.8 mm (7.7 in) |
| 2020 | 91.5 mm (3.6 in) |
| 2021 | 67.3 mm (2.6 in) |
| 2022 | 130.3 mm (5.1 in) |
| 2023 | 74.2 mm (2.9 in) |
| 2024 | 96.8 mm (3.8 in) |
| 2025 | 61.0 mm (2.4 in) |
| 2026 | 132.0 mm (5.2 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1945 | 19 days |
| 1946 | 17 days |
| 1947 | 26 days |
| 1948 | 20 days |
| 1949 | 20 days |
| 1950 | 30 days |
| 1951 | 14 days |
| 1952 | 46 days |
| 1953 | 24 days |
| 1954 | 25 days |
| 1955 | 21 days |
| 1956 | 29 days |
| 1957 | 24 days |
| 1958 | 27 days |
| 1959 | 25 days |
| 1960 | 14 days |
| 1961 | 23 days |
| 1962 | 16 days |
| 1963 | 16 days |
| 1964 | 26 days |
| 1965 | 19 days |
| 1966 | 19 days |
| 1967 | 20 days |
| 1968 | 19 days |
| 1969 | 18 days |
| 1970 | 18 days |
| 1971 | 13 days |
| 1972 | 16 days |
| 1973 | 14 days |
| 1974 | 14 days |
| 1975 | 16 days |
| 1976 | 24 days |
| 1977 | 14 days |
| 1978 | 13 days |
| 1979 | 25 days |
| 1980 | 11 days |
| 1981 | 25 days |
| 1982 | 19 days |
| 1983 | 15 days |
| 1984 | 17 days |
| 1985 | 16 days |
| 1986 | 24 days |
| 1987 | 29 days |
| 1988 | 30 days |
| 1989 | 21 days |
| 1990 | 19 days |
| 1991 | 16 days |
| 1992 | 12 days |
| 1993 | 16 days |
| 1994 | 20 days |
| 1995 | 40 days |
| 1996 | 27 days |
| 1997 | 24 days |
| 1998 | 21 days |
| 1999 | 25 days |
| 2000 | 15 days |
| 2001 | 19 days |
| 2002 | 17 days |
| 2003 | 12 days |
| 2017 | 23 days |
| 2018 | 19 days |
| 2019 | 26 days |
| 2020 | 20 days |
| 2021 | 21 days |
| 2022 | 20 days |
| 2023 | 18 days |
| 2024 | 29 days |
| 2025 | 21 days |
| 2026 | 23 days |
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Frost Dates and Growing Season
57 years with a frostAcross 57 years with a frost, the median last spring frost at Lake Geneva Wwtp falls on 3 May and the median first autumn frost on 11 October, which leaves a median of 162 days between them.
Fitted over all years, the growing season changes by +0.3 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1975 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 3 May | n/a | 30 April | n/a | -0.5 days per decade |
| First autumn frost | 11 October | n/a | 11 October | n/a | -0.3 days per decade |
| Growing days | 162 days | n/a | 163 days | n/a | +0.3 days per decade |
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
64 years, 1946 to 2025A day with at least 58.9 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 112.0 mm (4.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 58.9 mm (2.3 in) | |
| 5 years | 75.4 mm (3.0 in) | |
| 10 years | 85.3 mm (3.4 in) | |
| 25 years | 96.8 mm (3.8 in) | |
| 50 years | 104.7 mm (4.1 in) | |
| 100 years | 112.0 mm (4.4 in) | Longer than the 64 years of record |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 64 years of values from 1946 to 2025.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 126.0 mm (5.0 in) in 2022; 98.6 mm (3.9 in) in 1978; 92.7 mm (3.6 in) in 1982.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-12).