Germantown Wastewater Utility Weather Records (USC00473058)
Record envelope, standing records and threshold days for Germantown Wastewater Utility (USC00473058), Wisconsin, United States, with 83 years of record.
Key Facts for Germantown Wastewater Utility
- Germantown Wastewater Utility (USC00473058) is a weather station in Wisconsin, United States at 43.24 latitude and -88.12 longitude, 265 m (870 ft) above sea level.
- The station reports from 1944 to 2026, 83 years of record.
- 1,464 records set at Germantown Wastewater Utility still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Germantown Wastewater Utility set a daily record high maximum temperature of 30.0 C (86.0 F) on 13 October 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Wisconsin, United States, 43.24 latitude, -88.12 longitude.
- Elevation: 265 m (870 ft).
- Period of record: 1944 to 2026, 83 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 | 14.4 C (57.9 F) | -40.0 C (-40.0 F) | 13.3 C (55.9 F) | -27.8 C (-18.0 F) |
| Feb | 22.2 C (72.0 F) | -33.3 C (-27.9 F) | 16.1 C (61.0 F) | -18.3 C (-0.9 F) |
| Mar | 28.3 C (82.9 F) | -28.9 C (-20.0 F) | 23.3 C (73.9 F) | -14.4 C (6.1 F) |
| Apr | 31.7 C (89.1 F) | -13.9 C (7.0 F) | 27.2 C (81.0 F) | -7.8 C (18.0 F) |
| May | 33.9 C (93.0 F) | -6.7 C (19.9 F) | 31.1 C (88.0 F) | -1.7 C (28.9 F) |
| Jun | 37.2 C (99.0 F) | -5.0 C (23.0 F) | 33.3 C (91.9 F) | 7.8 C (46.0 F) |
| Jul | 40.0 C (104.0 F) | 2.2 C (36.0 F) | 35.0 C (95.0 F) | 9.4 C (48.9 F) |
| Aug | 38.9 C (102.0 F) | 0.6 C (33.1 F) | 29.4 C (84.9 F) | 8.9 C (48.0 F) |
| Sep | 37.2 C (99.0 F) | -5.6 C (21.9 F) | 31.1 C (88.0 F) | 5.0 C (41.0 F) |
| Oct | 31.7 C (89.1 F) | -13.3 C (8.1 F) | 30.0 C (86.0 F) | 3.3 C (37.9 F) |
| Nov | 25.0 C (77.0 F) | -26.1 C (-15.0 F) | n/a | n/a |
| Dec | 19.4 C (66.9 F) | -31.7 C (-25.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1944 | 10 |
| 1945 | 17 |
| 1946 | 13 |
| 1947 | 26 |
| 1948 | 15 |
| 1949 | 13 |
| 1950 | 26 |
| 1951 | 19 |
| 1952 | 9 |
| 1953 | 30 |
| 1954 | 9 |
| 1955 | 17 |
| 1956 | 14 |
| 1957 | 6 |
| 1958 | 13 |
| 1959 | 17 |
| 1960 | 12 |
| 1961 | 9 |
| 1962 | 10 |
| 1963 | 23 |
| 1964 | 22 |
| 1965 | 23 |
| 1966 | 16 |
| 1967 | 16 |
| 1968 | 15 |
| 1969 | 15 |
| 1970 | 17 |
| 1971 | 15 |
| 1972 | 25 |
| 1973 | 21 |
| 1974 | 21 |
| 1975 | 10 |
| 1976 | 34 |
| 1977 | 23 |
| 1978 | 8 |
| 1979 | 28 |
| 1980 | 13 |
| 1981 | 17 |
| 1982 | 27 |
| 1983 | 29 |
| 1984 | 15 |
| 1985 | 25 |
| 1986 | 19 |
| 1987 | 17 |
| 1988 | 28 |
| 1989 | 17 |
| 1990 | 29 |
| 1991 | 34 |
| 1992 | 25 |
| 1993 | 34 |
| 1994 | 21 |
| 1995 | 22 |
| 1996 | 23 |
| 1997 | 14 |
| 1998 | 18 |
| 1999 | 6 |
| 2000 | 19 |
| 2001 | 19 |
| 2002 | 22 |
| 2003 | 9 |
| 2004 | 10 |
| 2005 | 14 |
| 2006 | 18 |
| 2007 | 23 |
| 2008 | 9 |
| 2009 | 9 |
| 2010 | 9 |
| 2011 | 11 |
| 2012 | 35 |
| 2013 | 7 |
| 2014 | 25 |
| 2015 | 14 |
| 2016 | 6 |
| 2017 | 25 |
| 2018 | 15 |
| 2019 | 17 |
| 2020 | 17 |
| 2021 | 18 |
| 2022 | 9 |
| 2023 | 13 |
| 2024 | 15 |
| 2025 | 13 |
| 2026 | 13 |
All-Time Record Progression
20 new records| Date | Kind | Detail |
|---|---|---|
| 1976-07-11 | Record high minimum temperature | Record high minimum temperature 25.6 C (78.1 F) |
| 1979-01-03 | Record low maximum temperature | Record low maximum temperature -22.2 C (-8.0 F) |
| 1979-01-13 | Record snow depth | Record snow depth 73.7 cm (29.0 in) |
| 1979-01-14 | Record snow depth | Record snow depth 88.9 cm (35.0 in) |
| 1979-01-16 | Record snow depth | Record snow depth 94.0 cm (37.0 in) |
| 1979-01-19 | Record snow depth | Record snow depth 99.1 cm (39.0 in) |
| 1979-01-20 | Record snow depth | Record snow depth 111.8 cm (44.0 in) |
| 1979-01-24 | Record snow depth | Record snow depth 116.8 cm (46.0 in) |
| 1979-01-25 | Record snow depth | Record snow depth 119.4 cm (47.0 in) |
| 1982-01-10 | Record low maximum temperature | Record low maximum temperature -24.4 C (-11.9 F) |
| 1982-01-10 | Record low minimum temperature | Record low minimum temperature -40.0 C (-40.0 F) |
| 1982-01-17 | Record low maximum temperature | Record low maximum temperature -26.1 C (-15.0 F) |
| 1988-08-02 | Record high maximum temperature | Record high maximum temperature 38.9 C (102.0 F) |
| 1988-08-17 | Record high minimum temperature | Record high minimum temperature 26.1 C (79.0 F) |
| 1994-01-19 | Record low maximum temperature | Record low maximum temperature -27.8 C (-18.0 F) |
| 1995-07-14 | Record high minimum temperature | Record high minimum temperature 27.2 C (81.0 F) |
| 2008-02-07 | Record daily snowfall | Record daily snowfall 38.9 cm (15.3 in) |
| 2012-07-05 | Record high maximum temperature | Record high maximum temperature 39.4 C (102.9 F) |
| 2012-07-06 | Record high maximum temperature | Record high maximum temperature 40.0 C (104.0 F) |
| 2025-08-10 | Record daily precipitation | Record daily precipitation 218.9 mm (8.6 in) |
Wettest Day of Each Month
Aug: 218.9 mm (8.6 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 40.1 mm (1.6 in) | 20 January 1988 |
| Feb | 39.6 mm (1.6 in) | 21 February 1997 |
| Mar | 55.4 mm (2.2 in) | 31 March 1998 |
| Apr | 67.1 mm (2.6 in) | 15 April 2026 |
| May | 90.2 mm (3.6 in) | 18 May 2000 |
| Jun | 133.4 mm (5.3 in) | 21 June 1997 |
| Jul | 179.1 mm (7.1 in) | 18 July 1964 |
| Aug | 218.9 mm (8.6 in) | 10 August 2025 |
| Sep | 103.4 mm (4.1 in) | 11 September 1986 |
| Oct | 78.5 mm (3.1 in) | 3 October 1954 |
| Nov | 68.6 mm (2.7 in) | 4 November 2003 |
| Dec | 81.3 mm (3.2 in) | 19 December 2000 |
Period of Record Coverage
1944 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1944 | 214 | 58% | No |
| 1945 | 364 | 100% | Yes |
| 1946 | 354 | 97% | Yes |
| 1947 | 352 | 96% | Yes |
| 1948 | 362 | 99% | Yes |
| 1949 | 364 | 100% | Yes |
| 1950 | 364 | 100% | Yes |
| 1951 | 362 | 99% | Yes |
| 1952 | 363 | 99% | Yes |
| 1953 | 363 | 99% | Yes |
| 1954 | 362 | 99% | Yes |
| 1955 | 364 | 100% | Yes |
| 1956 | 361 | 99% | Yes |
| 1957 | 358 | 98% | Yes |
| 1958 | 363 | 99% | Yes |
| 1959 | 361 | 99% | Yes |
| 1960 | 363 | 99% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 357 | 98% | Yes |
| 1967 | 363 | 99% | Yes |
| 1968 | 365 | 100% | Yes |
| 1969 | 361 | 99% | Yes |
| 1970 | 364 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 365 | 100% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 364 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 363 | 99% | Yes |
| 1977 | 363 | 99% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 363 | 99% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 363 | 99% | Yes |
| 1983 | 361 | 99% | Yes |
| 1984 | 364 | 99% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 364 | 100% | Yes |
| 1987 | 364 | 100% | Yes |
| 1988 | 362 | 99% | Yes |
| 1989 | 364 | 100% | Yes |
| 1990 | 364 | 100% | Yes |
| 1991 | 364 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 363 | 99% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 363 | 99% | Yes |
| 1997 | 364 | 100% | Yes |
| 1998 | 363 | 99% | Yes |
| 1999 | 362 | 99% | Yes |
| 2000 | 365 | 100% | Yes |
| 2001 | 361 | 99% | Yes |
| 2002 | 360 | 99% | Yes |
| 2003 | 362 | 99% | Yes |
| 2004 | 361 | 99% | Yes |
| 2005 | 362 | 99% | Yes |
| 2006 | 364 | 100% | Yes |
| 2007 | 362 | 99% | Yes |
| 2008 | 365 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 364 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 365 | 100% | Yes |
| 2021 | 360 | 99% | Yes |
| 2022 | 363 | 99% | Yes |
| 2023 | 363 | 99% | Yes |
| 2024 | 352 | 96% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 288 | 79% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 13 October 2026 | Germantown Wastewater Utility, US | daily high max (Provisional) | 30.0 C (86.0 F) | 2.2 C (4.0 F) | 69 years | 31 of 100 (Routine) |
| 13 October 2026 | Germantown Wastewater Utility, US | daily high min (Provisional) | 15.6 C (60.1 F) | 1.2 C (2.2 F) | 4 years | 11 of 100 (Routine) |
| 11 October 2026 | Germantown Wastewater Utility, US | daily high max (Provisional) | 29.4 C (84.9 F) | 1.6 C (2.9 F) | 16 years | 14 of 100 (Routine) |
| 4 September 2026 | Germantown Wastewater Utility, US | daily rain (Provisional) | 49.5 mm (1.9 in) | 26.1 mm (1.0 in) | 72 years | 51 of 100 (Notable) |
| 1 August 2026 | Germantown Wastewater Utility, US | daily rain | 66.5 mm (2.6 in) | 23.3 mm (0.9 in) | 23 years | 29 of 100 (Routine) |
| 16 July 2026 | Germantown Wastewater Utility, US | daily high max | 35.0 C (95.0 F) | 0.6 C (1.1 F) | 20 years | 15 of 100 (Routine) |
| 1 July 2026 | Germantown Wastewater Utility, US | daily high min | 25.6 C (78.1 F) | 2.3 C (4.1 F) | 24 years | 20 of 100 (Routine) |
| 30 June 2026 | Germantown Wastewater Utility, US | daily high min | 23.3 C (73.9 F) | 0.5 C (0.9 F) | 56 years | 25 of 100 (Routine) |
| 26 May 2026 | Germantown Wastewater Utility, US | daily high max | 31.1 C (88.0 F) | 1.1 C (2.0 F) | 8 years | 11 of 100 (Routine) |
| 2 May 2026 | Germantown Wastewater Utility, US | daily low max | 6.1 C (43.0 F) | 0.6 C (1.1 F) | 3 years | 9 of 100 (Routine) |
| 24 April 2026 | Germantown Wastewater Utility, US | daily high max (Tie) | 27.2 C (81.0 F) | tie | 4 years | 2 of 100 (Routine) |
| 16 April 2026 | Germantown Wastewater Utility, US | daily rain | 46.7 mm (1.8 in) | 14.2 mm (0.6 in) | 28 years | 30 of 100 (Routine) |
| 15 April 2026 | Germantown Wastewater Utility, US | monthly rain | 67.1 mm (2.6 in) | 0.3 mm (0.01 in) | 17 years | 23 of 100 (Routine) |
| 31 March 2026 | Germantown Wastewater Utility, US | daily high max | 23.3 C (73.9 F) | 1.6 C (2.9 F) | 27 years | 18 of 100 (Routine) |
| 16 March 2026 | Germantown Wastewater Utility, US | daily rain | 39.1 mm (1.5 in) | 26.1 mm (1.0 in) | 9 years | 46 of 100 (Notable) |
| 16 March 2026 | Germantown Wastewater Utility, US | daily snowfall | 10.9 cm (4.3 in) | 0.7 cm (0.3 in) | 65 years | 28 of 100 (Routine) |
| 10 March 2026 | Germantown Wastewater Utility, US | daily high max | 22.8 C (73.0 F) | 5.0 C (9.0 F) | 9 years | 17 of 100 (Routine) |
| 7 March 2026 | Germantown Wastewater Utility, US | daily rain | 16.5 mm (0.6 in) | 0.2 mm (0.01 in) | 43 years | 20 of 100 (Routine) |
| 17 February 2026 | Germantown Wastewater Utility, US | daily high max | 16.1 C (61.0 F) | 5.0 C (9.0 F) | 44 years | 29 of 100 (Routine) |
| 16 February 2026 | Germantown Wastewater Utility, US | daily high min (Tie) | 1.1 C (34.0 F) | tie | 72 years | 7 of 100 (Routine) |
Climate Trend
77 complete years, 1945 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1945 | 7.5 C | -0.08 C |
| 1946 | 8.8 C | +1.26 C |
| 1949 | 8.3 C | +0.72 C |
| 1950 | 6.3 C | -1.25 C |
| 1951 | 6.5 C | -1.04 C |
| 1952 | 8.6 C | +0.99 C |
| 1953 | 9.3 C | +1.74 C |
| 1954 | 8.6 C | +1.05 C |
| 1956 | 8.4 C | +0.79 C |
| 1957 | 7.9 C | +0.35 C |
| 1958 | 7.4 C | -0.15 C |
| 1959 | 7.7 C | +0.08 C |
| 1960 | 7.5 C | -0.04 C |
| 1961 | 8.2 C | +0.63 C |
| 1962 | 7.5 C | -0.07 C |
| 1963 | 7.2 C | -0.35 C |
| 1964 | 8.3 C | +0.69 C |
| 1965 | 7.2 C | -0.37 C |
| 1966 | 7.6 C | +0.02 C |
| 1967 | 7.2 C | -0.36 C |
| 1968 | 8.1 C | +0.55 C |
| 1969 | 7.0 C | -0.57 C |
| 1970 | 7.1 C | -0.53 C |
| 1971 | 7.0 C | -0.56 C |
| 1972 | 5.9 C | -1.67 C |
| 1973 | 8.4 C | +0.86 C |
| 1974 | 7.1 C | -0.51 C |
| 1975 | 7.4 C | -0.16 C |
| 1976 | 6.4 C | -1.16 C |
| 1977 | 7.1 C | -0.52 C |
| 1978 | 6.3 C | -1.30 C |
| 1979 | 5.8 C | -1.76 C |
| 1980 | 6.8 C | -0.81 C |
| 1981 | 7.1 C | -0.45 C |
| 1982 | 6.3 C | -1.29 C |
| 1983 | 7.3 C | -0.32 C |
| 1984 | 7.2 C | -0.34 C |
| 1985 | 6.7 C | -0.91 C |
| 1986 | 7.5 C | -0.09 C |
| 1987 | 8.8 C | +1.23 C |
| 1989 | 6.2 C | -1.40 C |
| 1990 | 7.6 C | +0.04 C |
| 1991 | 7.7 C | +0.13 C |
| 1992 | 6.6 C | -0.98 C |
| 1993 | 5.9 C | -1.68 C |
| 1994 | 7.0 C | -0.57 C |
| 1995 | 7.1 C | -0.52 C |
| 1996 | 6.0 C | -1.55 C |
| 1997 | 6.8 C | -0.74 C |
| 1998 | 9.5 C | +1.89 C |
| 1999 | 8.4 C | +0.80 C |
| 2000 | 7.8 C | +0.20 C |
| 2001 | 8.5 C | +0.88 C |
| 2002 | 8.1 C | +0.52 C |
| 2003 | 7.3 C | -0.32 C |
| 2004 | 7.6 C | +0.04 C |
| 2005 | 8.1 C | +0.56 C |
| 2006 | 8.8 C | +1.18 C |
| 2007 | 8.4 C | +0.77 C |
| 2008 | 6.8 C | -0.75 C |
| 2009 | 7.0 C | -0.61 C |
| 2010 | 8.6 C | +1.02 C |
| 2011 | 7.8 C | +0.24 C |
| 2012 | 9.8 C | +2.22 C |
| 2013 | 6.7 C | -0.87 C |
| 2014 | 5.7 C | -1.88 C |
| 2015 | 7.8 C | +0.25 C |
| 2016 | 8.8 C | +1.23 C |
| 2017 | 8.3 C | +0.72 C |
| 2018 | 7.5 C | -0.11 C |
| 2019 | 7.0 C | -0.58 C |
| 2020 | 8.3 C | +0.71 C |
| 2021 | 8.7 C | +1.07 C |
| 2022 | 7.4 C | -0.18 C |
| 2023 | 9.1 C | +1.52 C |
| 2024 | 9.6 C | +1.99 C |
| 2025 | 8.0 C | +0.39 C |
The fitted trend in annual mean temperature here over 1945 to 2025 is 0.05 C (-0.04 to 0.15) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.3) per decade. The slope is a straight line fitted to 77 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.05 C (-0.04 to 0.15) per decade | 0.1 F (-0.1 to 0.3) per decade | 1945 to 2025 | 77 | Not clearly different from zero |
| Mean daily maximum | -0.01 C (-0.10 to 0.09) per decade | -0.01 F (-0.18 to 0.16) per decade | 1945 to 2025 | 77 | Not clearly different from zero |
| Mean daily minimum | 0.11 C (0.01 to 0.21) per decade | 0.20 F (0.02 to 0.38) per decade | 1945 to 2025 | 77 | 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
1944 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 40.0 C (104.0 F) | 2012 | 34.4 C (93.9 F) | 83 |
| Coldest night (TNn) | -40.0 C (-40.0 F) | 1982 | -26.1 C (-15.0 F) | 83 |
| Wettest day (Rx1day) | 218.9 mm (8.6 in) | 2025 | 58.7 mm (2.3 in) | 83 |
| Wettest five days (Rx5day) | 302.5 mm (11.9 in) | 2025 | 88.9 mm (3.5 in) | 83 |
| Longest dry spell (CDD) | 48 days | 1961 | 22 days | 83 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1944 | 36.7 C (98.1 F) |
| 1945 | 35.6 C (96.1 F) |
| 1946 | 34.4 C (93.9 F) |
| 1947 | 37.8 C (100.0 F) |
| 1948 | 37.2 C (99.0 F) |
| 1949 | 35.0 C (95.0 F) |
| 1950 | 31.7 C (89.1 F) |
| 1951 | 31.7 C (89.1 F) |
| 1952 | 33.9 C (93.0 F) |
| 1953 | 37.2 C (99.0 F) |
| 1954 | 33.3 C (91.9 F) |
| 1955 | 37.2 C (99.0 F) |
| 1956 | 34.4 C (93.9 F) |
| 1957 | 33.3 C (91.9 F) |
| 1958 | 33.9 C (93.0 F) |
| 1959 | 36.1 C (97.0 F) |
| 1960 | 33.9 C (93.0 F) |
| 1961 | 34.4 C (93.9 F) |
| 1962 | 35.6 C (96.1 F) |
| 1963 | 36.7 C (98.1 F) |
| 1964 | 35.0 C (95.0 F) |
| 1965 | 35.0 C (95.0 F) |
| 1966 | 37.2 C (99.0 F) |
| 1967 | 32.2 C (90.0 F) |
| 1968 | 33.9 C (93.0 F) |
| 1969 | 32.8 C (91.0 F) |
| 1970 | 36.7 C (98.1 F) |
| 1971 | 34.4 C (93.9 F) |
| 1972 | 33.9 C (93.0 F) |
| 1973 | 36.1 C (97.0 F) |
| 1974 | 35.0 C (95.0 F) |
| 1975 | 33.3 C (91.9 F) |
| 1976 | 36.7 C (98.1 F) |
| 1977 | 36.7 C (98.1 F) |
| 1978 | 35.0 C (95.0 F) |
| 1979 | 31.7 C (89.1 F) |
| 1980 | 36.1 C (97.0 F) |
| 1981 | 33.3 C (91.9 F) |
| 1982 | 33.3 C (91.9 F) |
| 1983 | 36.1 C (97.0 F) |
| 1984 | 34.4 C (93.9 F) |
| 1985 | 35.0 C (95.0 F) |
| 1986 | 34.4 C (93.9 F) |
| 1987 | 35.6 C (96.1 F) |
| 1988 | 38.9 C (102.0 F) |
| 1989 | 33.3 C (91.9 F) |
| 1990 | 33.9 C (93.0 F) |
| 1991 | 33.9 C (93.0 F) |
| 1992 | 31.7 C (89.1 F) |
| 1993 | 32.2 C (90.0 F) |
| 1994 | 35.0 C (95.0 F) |
| 1995 | 38.9 C (102.0 F) |
| 1996 | 33.3 C (91.9 F) |
| 1997 | 32.8 C (91.0 F) |
| 1998 | 33.3 C (91.9 F) |
| 1999 | 33.9 C (93.0 F) |
| 2000 | 34.4 C (93.9 F) |
| 2001 | 34.4 C (93.9 F) |
| 2002 | 35.6 C (96.1 F) |
| 2003 | 33.3 C (91.9 F) |
| 2004 | 32.2 C (90.0 F) |
| 2005 | 35.0 C (95.0 F) |
| 2006 | 36.1 C (97.0 F) |
| 2007 | 35.6 C (96.1 F) |
| 2008 | 33.9 C (93.0 F) |
| 2009 | 34.4 C (93.9 F) |
| 2010 | 32.8 C (91.0 F) |
| 2011 | 35.6 C (96.1 F) |
| 2012 | 40.0 C (104.0 F) |
| 2013 | 34.4 C (93.9 F) |
| 2014 | 31.7 C (89.1 F) |
| 2015 | 32.8 C (91.0 F) |
| 2016 | 33.3 C (91.9 F) |
| 2017 | 33.9 C (93.0 F) |
| 2018 | 34.4 C (93.9 F) |
| 2019 | 33.3 C (91.9 F) |
| 2020 | 34.4 C (93.9 F) |
| 2021 | 33.9 C (93.0 F) |
| 2022 | 36.1 C (97.0 F) |
| 2023 | 36.1 C (97.0 F) |
| 2024 | 33.9 C (93.0 F) |
| 2025 | 34.4 C (93.9 F) |
| 2026 | 35.0 C (95.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1944 | -25.0 C (-13.0 F) |
| 1945 | -27.2 C (-17.0 F) |
| 1946 | -25.0 C (-13.0 F) |
| 1947 | -26.1 C (-15.0 F) |
| 1948 | -31.1 C (-24.0 F) |
| 1949 | -25.6 C (-14.1 F) |
| 1950 | -26.7 C (-16.1 F) |
| 1951 | -34.4 C (-29.9 F) |
| 1952 | -26.1 C (-15.0 F) |
| 1953 | -22.8 C (-9.0 F) |
| 1954 | -27.2 C (-17.0 F) |
| 1955 | -25.6 C (-14.1 F) |
| 1956 | -22.8 C (-9.0 F) |
| 1957 | -23.9 C (-11.0 F) |
| 1958 | -25.0 C (-13.0 F) |
| 1959 | -29.4 C (-20.9 F) |
| 1960 | -23.9 C (-11.0 F) |
| 1961 | -23.9 C (-11.0 F) |
| 1962 | -28.9 C (-20.0 F) |
| 1963 | -31.7 C (-25.1 F) |
| 1964 | -22.2 C (-8.0 F) |
| 1965 | -29.4 C (-20.9 F) |
| 1966 | -31.1 C (-24.0 F) |
| 1967 | -28.9 C (-20.0 F) |
| 1968 | -27.8 C (-18.0 F) |
| 1969 | -25.6 C (-14.1 F) |
| 1970 | -27.8 C (-18.0 F) |
| 1971 | -31.1 C (-24.0 F) |
| 1972 | -31.7 C (-25.1 F) |
| 1973 | -24.4 C (-11.9 F) |
| 1974 | -26.1 C (-15.0 F) |
| 1975 | -25.0 C (-13.0 F) |
| 1976 | -26.1 C (-15.0 F) |
| 1977 | -31.1 C (-24.0 F) |
| 1978 | -24.4 C (-11.9 F) |
| 1979 | -33.3 C (-27.9 F) |
| 1980 | -24.4 C (-11.9 F) |
| 1981 | -26.1 C (-15.0 F) |
| 1982 | -40.0 C (-40.0 F) |
| 1983 | -31.7 C (-25.1 F) |
| 1984 | -30.6 C (-23.1 F) |
| 1985 | -33.9 C (-29.0 F) |
| 1986 | -28.3 C (-18.9 F) |
| 1987 | -25.0 C (-13.0 F) |
| 1988 | -29.4 C (-20.9 F) |
| 1989 | -28.3 C (-18.9 F) |
| 1990 | -23.9 C (-11.0 F) |
| 1991 | -25.0 C (-13.0 F) |
| 1992 | -22.8 C (-9.0 F) |
| 1993 | -28.9 C (-20.0 F) |
| 1994 | -33.3 C (-27.9 F) |
| 1995 | -22.2 C (-8.0 F) |
| 1996 | -33.3 C (-27.9 F) |
| 1997 | -25.6 C (-14.1 F) |
| 1998 | -22.2 C (-8.0 F) |
| 1999 | -29.4 C (-20.9 F) |
| 2000 | -28.3 C (-18.9 F) |
| 2001 | -20.6 C (-5.1 F) |
| 2002 | -23.3 C (-9.9 F) |
| 2003 | -23.3 C (-9.9 F) |
| 2004 | -26.1 C (-15.0 F) |
| 2005 | -21.7 C (-7.1 F) |
| 2006 | -26.7 C (-16.1 F) |
| 2007 | -26.7 C (-16.1 F) |
| 2008 | -24.4 C (-11.9 F) |
| 2009 | -26.7 C (-16.1 F) |
| 2010 | -20.6 C (-5.1 F) |
| 2011 | -23.9 C (-11.0 F) |
| 2012 | -20.6 C (-5.1 F) |
| 2013 | -23.9 C (-11.0 F) |
| 2014 | -28.9 C (-20.0 F) |
| 2015 | -25.6 C (-14.1 F) |
| 2016 | -22.8 C (-9.0 F) |
| 2017 | -22.2 C (-8.0 F) |
| 2018 | -24.4 C (-11.9 F) |
| 2019 | -33.9 C (-29.0 F) |
| 2020 | -23.3 C (-9.9 F) |
| 2021 | -26.1 C (-15.0 F) |
| 2022 | -25.0 C (-13.0 F) |
| 2023 | -22.8 C (-9.0 F) |
| 2024 | -24.4 C (-11.9 F) |
| 2025 | -25.6 C (-14.1 F) |
| 2026 | -27.8 C (-18.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1944 | 34.0 mm (1.3 in) |
| 1945 | 81.8 mm (3.2 in) |
| 1946 | 24.4 mm (1.0 in) |
| 1947 | 64.3 mm (2.5 in) |
| 1948 | 27.9 mm (1.1 in) |
| 1949 | 74.4 mm (2.9 in) |
| 1950 | 88.9 mm (3.5 in) |
| 1951 | 53.6 mm (2.1 in) |
| 1952 | 67.1 mm (2.6 in) |
| 1953 | 57.2 mm (2.3 in) |
| 1954 | 78.5 mm (3.1 in) |
| 1955 | 49.3 mm (1.9 in) |
| 1956 | 60.2 mm (2.4 in) |
| 1957 | 31.8 mm (1.3 in) |
| 1958 | 58.7 mm (2.3 in) |
| 1959 | 36.8 mm (1.4 in) |
| 1960 | 81.3 mm (3.2 in) |
| 1961 | 57.2 mm (2.3 in) |
| 1962 | 39.9 mm (1.6 in) |
| 1963 | 43.2 mm (1.7 in) |
| 1964 | 179.1 mm (7.1 in) |
| 1965 | 47.0 mm (1.9 in) |
| 1966 | 34.3 mm (1.4 in) |
| 1967 | 34.3 mm (1.4 in) |
| 1968 | 68.6 mm (2.7 in) |
| 1969 | 78.7 mm (3.1 in) |
| 1970 | 50.8 mm (2.0 in) |
| 1971 | 45.7 mm (1.8 in) |
| 1972 | 63.5 mm (2.5 in) |
| 1973 | 56.6 mm (2.2 in) |
| 1974 | 46.2 mm (1.8 in) |
| 1975 | 41.9 mm (1.6 in) |
| 1976 | 45.5 mm (1.8 in) |
| 1977 | 53.6 mm (2.1 in) |
| 1978 | 47.2 mm (1.9 in) |
| 1979 | 37.6 mm (1.5 in) |
| 1980 | 63.8 mm (2.5 in) |
| 1981 | 83.6 mm (3.3 in) |
| 1982 | 63.5 mm (2.5 in) |
| 1983 | 96.0 mm (3.8 in) |
| 1984 | 63.8 mm (2.5 in) |
| 1985 | 66.0 mm (2.6 in) |
| 1986 | 103.4 mm (4.1 in) |
| 1987 | 31.5 mm (1.2 in) |
| 1988 | 40.1 mm (1.6 in) |
| 1989 | 38.6 mm (1.5 in) |
| 1990 | 63.0 mm (2.5 in) |
| 1991 | 58.7 mm (2.3 in) |
| 1992 | 57.7 mm (2.3 in) |
| 1993 | 65.0 mm (2.6 in) |
| 1994 | 73.9 mm (2.9 in) |
| 1995 | 44.5 mm (1.8 in) |
| 1996 | 91.7 mm (3.6 in) |
| 1997 | 133.4 mm (5.3 in) |
| 1998 | 55.4 mm (2.2 in) |
| 1999 | 99.3 mm (3.9 in) |
| 2000 | 90.2 mm (3.6 in) |
| 2001 | 50.8 mm (2.0 in) |
| 2002 | 68.1 mm (2.7 in) |
| 2003 | 68.6 mm (2.7 in) |
| 2004 | 63.5 mm (2.5 in) |
| 2005 | 48.3 mm (1.9 in) |
| 2006 | 50.0 mm (2.0 in) |
| 2007 | 72.6 mm (2.9 in) |
| 2008 | 72.4 mm (2.9 in) |
| 2009 | 43.9 mm (1.7 in) |
| 2010 | 91.2 mm (3.6 in) |
| 2011 | 84.8 mm (3.3 in) |
| 2012 | 39.1 mm (1.5 in) |
| 2013 | 38.4 mm (1.5 in) |
| 2014 | 46.7 mm (1.8 in) |
| 2015 | 44.5 mm (1.8 in) |
| 2016 | 39.6 mm (1.6 in) |
| 2017 | 53.6 mm (2.1 in) |
| 2018 | 105.2 mm (4.1 in) |
| 2019 | 62.7 mm (2.5 in) |
| 2020 | 59.4 mm (2.3 in) |
| 2021 | 87.4 mm (3.4 in) |
| 2022 | 81.5 mm (3.2 in) |
| 2023 | 71.6 mm (2.8 in) |
| 2024 | 49.3 mm (1.9 in) |
| 2025 | 218.9 mm (8.6 in) |
| 2026 | 67.1 mm (2.6 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1944 | 70.3 mm (2.8 in) |
| 1945 | 99.6 mm (3.9 in) |
| 1946 | 43.7 mm (1.7 in) |
| 1947 | 64.3 mm (2.5 in) |
| 1948 | 54.5 mm (2.1 in) |
| 1949 | 96.0 mm (3.8 in) |
| 1950 | 135.9 mm (5.4 in) |
| 1951 | 98.5 mm (3.9 in) |
| 1952 | 109.8 mm (4.3 in) |
| 1953 | 92.2 mm (3.6 in) |
| 1954 | 102.1 mm (4.0 in) |
| 1955 | 88.3 mm (3.5 in) |
| 1956 | 67.3 mm (2.6 in) |
| 1957 | 42.9 mm (1.7 in) |
| 1958 | 72.4 mm (2.9 in) |
| 1959 | 70.4 mm (2.8 in) |
| 1960 | 111.5 mm (4.4 in) |
| 1961 | 124.0 mm (4.9 in) |
| 1962 | 41.0 mm (1.6 in) |
| 1963 | 62.2 mm (2.4 in) |
| 1964 | 200.7 mm (7.9 in) |
| 1965 | 118.6 mm (4.7 in) |
| 1966 | 43.5 mm (1.7 in) |
| 1967 | 67.8 mm (2.7 in) |
| 1968 | 68.6 mm (2.7 in) |
| 1969 | 83.3 mm (3.3 in) |
| 1970 | 79.5 mm (3.1 in) |
| 1971 | 54.9 mm (2.2 in) |
| 1972 | 114.3 mm (4.5 in) |
| 1973 | 67.3 mm (2.6 in) |
| 1974 | 59.7 mm (2.4 in) |
| 1975 | 108.2 mm (4.3 in) |
| 1976 | 70.9 mm (2.8 in) |
| 1977 | 79.5 mm (3.1 in) |
| 1978 | 88.9 mm (3.5 in) |
| 1979 | 49.1 mm (1.9 in) |
| 1980 | 134.9 mm (5.3 in) |
| 1981 | 93.3 mm (3.7 in) |
| 1982 | 77.0 mm (3.0 in) |
| 1983 | 114.9 mm (4.5 in) |
| 1984 | 93.5 mm (3.7 in) |
| 1985 | 88.9 mm (3.5 in) |
| 1986 | 138.2 mm (5.4 in) |
| 1987 | 55.6 mm (2.2 in) |
| 1988 | 83.6 mm (3.3 in) |
| 1989 | 78.3 mm (3.1 in) |
| 1990 | 79.7 mm (3.1 in) |
| 1991 | 68.3 mm (2.7 in) |
| 1992 | 67.1 mm (2.6 in) |
| 1993 | 88.2 mm (3.5 in) |
| 1994 | 138.0 mm (5.4 in) |
| 1995 | 87.1 mm (3.4 in) |
| 1996 | 114.3 mm (4.5 in) |
| 1997 | 184.4 mm (7.3 in) |
| 1998 | 85.3 mm (3.4 in) |
| 1999 | 124.5 mm (4.9 in) |
| 2000 | 133.9 mm (5.3 in) |
| 2001 | 87.6 mm (3.4 in) |
| 2002 | 97.3 mm (3.8 in) |
| 2003 | 111.3 mm (4.4 in) |
| 2004 | 129.6 mm (5.1 in) |
| 2005 | 70.3 mm (2.8 in) |
| 2006 | 78.2 mm (3.1 in) |
| 2007 | 131.8 mm (5.2 in) |
| 2008 | 160.5 mm (6.3 in) |
| 2009 | 80.8 mm (3.2 in) |
| 2010 | 102.4 mm (4.0 in) |
| 2011 | 117.9 mm (4.6 in) |
| 2012 | 65.2 mm (2.6 in) |
| 2013 | 106.3 mm (4.2 in) |
| 2014 | 109.3 mm (4.3 in) |
| 2015 | 121.0 mm (4.8 in) |
| 2016 | 77.2 mm (3.0 in) |
| 2017 | 70.2 mm (2.8 in) |
| 2018 | 153.2 mm (6.0 in) |
| 2019 | 108.1 mm (4.3 in) |
| 2020 | 76.7 mm (3.0 in) |
| 2021 | 147.1 mm (5.8 in) |
| 2022 | 92.7 mm (3.6 in) |
| 2023 | 86.1 mm (3.4 in) |
| 2024 | 91.7 mm (3.6 in) |
| 2025 | 302.5 mm (11.9 in) |
| 2026 | 152.4 mm (6.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1944 | 27 days |
| 1945 | 20 days |
| 1946 | 25 days |
| 1947 | 26 days |
| 1948 | 22 days |
| 1949 | 18 days |
| 1950 | 30 days |
| 1951 | 15 days |
| 1952 | 30 days |
| 1953 | 24 days |
| 1954 | 19 days |
| 1955 | 35 days |
| 1956 | 24 days |
| 1957 | 28 days |
| 1958 | 31 days |
| 1959 | 29 days |
| 1960 | 32 days |
| 1961 | 48 days |
| 1962 | 21 days |
| 1963 | 37 days |
| 1964 | 24 days |
| 1965 | 15 days |
| 1966 | 25 days |
| 1967 | 28 days |
| 1968 | 35 days |
| 1969 | 25 days |
| 1970 | 17 days |
| 1971 | 13 days |
| 1972 | 27 days |
| 1973 | 26 days |
| 1974 | 15 days |
| 1975 | 18 days |
| 1976 | 26 days |
| 1977 | 17 days |
| 1978 | 19 days |
| 1979 | 33 days |
| 1980 | 20 days |
| 1981 | 37 days |
| 1982 | 25 days |
| 1983 | 17 days |
| 1984 | 21 days |
| 1985 | 14 days |
| 1986 | 20 days |
| 1987 | 29 days |
| 1988 | 28 days |
| 1989 | 21 days |
| 1990 | 16 days |
| 1991 | 33 days |
| 1992 | 18 days |
| 1993 | 29 days |
| 1994 | 14 days |
| 1995 | 22 days |
| 1996 | 17 days |
| 1997 | 15 days |
| 1998 | 18 days |
| 1999 | 25 days |
| 2000 | 15 days |
| 2001 | 18 days |
| 2002 | 25 days |
| 2003 | 22 days |
| 2004 | 20 days |
| 2005 | 15 days |
| 2006 | 18 days |
| 2007 | 29 days |
| 2008 | 20 days |
| 2009 | 27 days |
| 2010 | 20 days |
| 2011 | 16 days |
| 2012 | 26 days |
| 2013 | 18 days |
| 2014 | 23 days |
| 2015 | 26 days |
| 2016 | 21 days |
| 2017 | 14 days |
| 2018 | 20 days |
| 2019 | 25 days |
| 2020 | 20 days |
| 2021 | 18 days |
| 2022 | 20 days |
| 2023 | 22 days |
| 2024 | 22 days |
| 2025 | 32 days |
| 2026 | 18 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
77 years with a frostAcross 77 years with a frost, the median last spring frost at Germantown Wastewater Utility falls on 12 May and the median first autumn frost on 3 October, which leaves a median of 145 days between them.
In 1996 to 2025 the median growing season was 160 days. That is 21 days more than in 1945 to 1977.
Fitted over all years, the growing season changes by +3.7 days per decade at this station.
| Measure | Median, all years | Earliest period (1945 to 1977) | Recent period (1996 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 12 May | 17 May | 2 May | 15 days earlier | -2.3 days per decade |
| First autumn frost | 3 October | 2 October | 10 October | 8 days later | +1.3 days per decade |
| Growing days | 145 days | 139 days | 160 days | 21 days more | +3.7 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
81 years, 1945 to 2025A day with at least 57.5 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 169.3 mm (6.7 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 57.5 mm (2.3 in) | |
| 5 years | 80.4 mm (3.2 in) | |
| 10 years | 98.1 mm (3.9 in) | |
| 25 years | 123.7 mm (4.9 in) | |
| 50 years | 145.3 mm (5.7 in) | |
| 100 years | 169.3 mm (6.7 in) | Longer than the 81 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, 81 years of values from 1945 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: 218.9 mm (8.6 in) in 2025; 179.1 mm (7.1 in) in 1964; 133.4 mm (5.3 in) in 1997.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Germantown Wastewater Utility had a mean temperature of 8.0 C (46.5 F) and 837.1 mm (33.0 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Milford Gm Proving Ground (United States, 369 km away), Central Michigan UNIV (United States, 274 km away) and Alma (United States, 282 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Milford Gm Proving Ground | United States | 369 km (229 mi) | 8.3 C (46.9 F) | 793.2 mm (31.2 in) | 0.60 |
| Central Michigan UNIV | United States | 274 km (170 mi) | 8.1 C (46.6 F) | 791.1 mm (31.1 in) | 0.61 |
| Alma | United States | 282 km (175 mi) | 8.2 C (46.8 F) | 789.9 mm (31.1 in) | 0.63 |
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
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). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-17).