Jefferson County, WI
An ordinary day in Jefferson County, WI: was cooler than 11 of 75 earlier years in the county average (county average from NOAA gridded data, 1951 to 2026).
Last updated . This page normally updates every day; the latest update is late.
- Tuesday 29 September 2026: a high of 76.5°F averaged over Jefferson County, WI, the warmest 29 September in the county average since 2025, 12th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: a low of 47.2°F averaged over Jefferson County, WI, the warmest 29 September night in the county average since 2025, 33rd warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
- No measurable precipitation in the county average of Jefferson County, WI for 6 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).
The month
- September 2026 so far averaged 65.4°F in Jefferson County, WI, the warmest 1 to 29 September in the county average since 2024, 12th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
- August 2026 averaged 70.2°F in Jefferson County, WI, the warmest August in the county average since 2023, tied 54th warmest of 132 (with 1991) (county average from NOAA's monthly county data, 1895 to 2026).
- Days of the month without a value
- 0
Every year on this date
- Above the normal range
- In it
- Below it
- Normal range
- This year and the extreme
Every year as a table
| Year | High, °F | Low, °F |
|---|---|---|
| 2026 | 76.5 | 47.2 |
| 2025 | 79.6 | 51.3 |
| 2024 | 77.8 | 56.1 |
| 2023 | 67 | 50.7 |
| 2022 | 57.8 | 34.6 |
| 2021 | 75.7 | 47.4 |
| 2020 | 59 | 42.5 |
| 2019 | 64.1 | 51.7 |
| 2018 | 54.7 | 36.1 |
| 2017 | 72.2 | 44.8 |
| 2016 | 62.9 | 50.2 |
| 2015 | 79.2 | 56.1 |
| 2014 | 80.5 | 51.6 |
| 2013 | 80.5 | 47.5 |
| 2012 | 69.4 | 38.7 |
| 2011 | 67.1 | 47.4 |
| 2010 | 70.4 | 46.3 |
| 2009 | 60 | 44.4 |
| 2008 | 65.4 | 51.1 |
| 2007 | 72.2 | 45.4 |
| 2006 | 57.1 | 38.5 |
| 2005 | 66.9 | 38.8 |
| 2004 | 64.7 | 37.7 |
| 2003 | 54.7 | 36.5 |
| 2002 | 72.4 | 46.1 |
| 2001 | 55.5 | 40.3 |
| 2000 | 65.6 | 40.7 |
| 1999 | 55.4 | 45.7 |
| 1998 | 75 | 49.3 |
| 1997 | 71.4 | 52.8 |
| 1996 | 62.1 | 48.9 |
| 1995 | 79.3 | 50.7 |
| 1994 | 62.9 | 40.5 |
| 1993 | 52.4 | 38.8 |
| 1992 | 55.8 | 31.8 |
| 1991 | 63 | 33.8 |
| 1990 | 64.3 | 44.4 |
| 1989 | 72.2 | 42.7 |
| 1988 | 65.6 | 52.5 |
| 1987 | 75.2 | 50.6 |
| 1986 | 75.4 | 61.3 |
| 1985 | 71.4 | 47.7 |
| 1984 | 53 | 30.2 |
| 1983 | 80 | 52.3 |
| 1982 | 73.2 | 50.3 |
| 1981 | 60.7 | 39.1 |
| 1980 | 67.5 | 47 |
| 1979 | 79.9 | 51.6 |
| 1978 | 65.5 | 44.1 |
| 1977 | 67.6 | 50.1 |
| 1976 | 65.8 | 41.2 |
| 1975 | 68.1 | 43.8 |
| 1974 | 66.9 | 42.2 |
| 1973 | 62.7 | 57.9 |
| 1972 | 67.7 | 40.2 |
| 1971 | 82.6 | 52.2 |
| 1970 | 64.2 | 36 |
| 1969 | 62.9 | 41.2 |
| 1968 | 67.1 | 45.2 |
| 1967 | 49.4 | 34.3 |
| 1966 | 61.3 | 48.9 |
| 1965 | 69.1 | 51.9 |
| 1964 | 64.7 | 32.1 |
| 1963 | 59.8 | 40 |
| 1962 | 63 | 34.4 |
| 1961 | 56.8 | 31.4 |
| 1960 | 62.8 | 46.4 |
| 1959 | 65.4 | 46.1 |
| 1958 | 67 | 42 |
| 1957 | 67.9 | 32.3 |
| 1956 | 72.9 | 53.9 |
| 1955 | 70 | 48.5 |
| 1954 | 73.8 | 56.9 |
| 1953 | 87.8 | 52.7 |
| 1952 | 77.8 | 50.7 |
| 1951 | 57.7 | 30.7 |
Nearby
Madison, WI 30.1 mi, the nearest city with its own station