# Annual precipitation in Jefferson County

Annual precipitation in Jefferson County was 31.84 inches in 2025. Source: NOAA National Centers for Environmental Information.

- Indicator id: `precipitation_annual`
- Place id: `us-county-55055`
- Unit: inches
- Definition: Total precipitation from January to December, in inches: rain plus the water content of snow and other frozen precipitation. NOAA computes it from its climate divisional dataset (nClimDiv): station readings interpolated onto a 5 km grid and averaged over the area.
- Note: Values are area averages, not the reading at one weather station. NOAA revises the last two years every month.
- Source: NOAA National Centers for Environmental Information, NOAA Climate at a Glance, January to December precipitation, counties (https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping)
- Publisher page: https://invokely.ai/en/publishers/noaa-ncei
- Retrieved: 2026-10-12
- License: Public domain (US government work); NCEI asks users to cite the nClimDiv dataset
- Citation: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December precipitation, counties. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/county/mapping. Retrieved 2026-10-12.
- Web page: https://invokely.ai/en/annual-precipitation/jefferson-county-wisconsin
- API: https://invokely.ai/api/v1/series?indicator=precipitation_annual&place=us-county-55055

| Period | inches |
|---|---:|
| 2025 | 31.84 |
| 2024 | 42.07 |
| 2023 | 30.75 |
| 2022 | 36.37 |
| 2021 | 25.89 |
| 2020 | 34.79 |
| 2019 | 42.2 |
| 2018 | 49.75 |
| 2017 | 39.53 |
| 2016 | 37.82 |
| 2015 | 36.65 |
| 2014 | 32.13 |
| 2013 | 42.21 |
| 2012 | 28.33 |
| 2011 | 32.32 |
| 2010 | 40.66 |
| 2009 | 37.85 |
| 2008 | 44.08 |
| 2007 | 39.92 |
| 2006 | 42.64 |
| 2005 | 28.54 |
| 2004 | 35.85 |
| 2003 | 29.05 |
| 2002 | 28.4 |
| 2001 | 38.34 |
| 2000 | 37.23 |
| 1999 | 35.58 |
| 1998 | 37.84 |
| 1997 | 29.74 |
| 1996 | 29.84 |
| 1995 | 34.89 |
| 1994 | 29.9 |
| 1993 | 37.98 |
| 1992 | 32.26 |
| 1991 | 35.96 |
| 1990 | 34.88 |
| 1989 | 26.9 |
| 1988 | 26.3 |
| 1987 | 33.67 |
| 1986 | 37.83 |
| 1985 | 36.25 |
| 1984 | 37.33 |
| 1983 | 30.88 |
| 1982 | 38.09 |
| 1981 | 33.3 |
| 1980 | 34.4 |
| 1979 | 33.88 |
| 1978 | 35.95 |
| 1977 | 33.96 |
| 1976 | 24.89 |
| 1975 | 30.28 |
| 1974 | 35.37 |
| 1973 | 36.92 |
| 1972 | 38.89 |
| 1971 | 28.93 |
| 1970 | 31.11 |
| 1969 | 30.47 |
| 1968 | 34.61 |
| 1967 | 31.41 |
| 1966 | 26.28 |
| 1965 | 40.21 |
| 1964 | 26.17 |
| 1963 | 21.48 |
| 1962 | 23.41 |
| 1961 | 34.93 |
| 1960 | 38.52 |
| 1959 | 37.67 |
| 1958 | 22.94 |
| 1957 | 29.8 |
| 1956 | 28.86 |
| 1955 | 29.28 |
| 1954 | 36.64 |
| 1953 | 26.47 |
| 1952 | 34.39 |
| 1951 | 37.26 |
| 1950 | 34.43 |