# Annual precipitation in Boone County

Annual precipitation in Boone County was 32.93 inches in 2025. Source: NOAA National Centers for Environmental Information.

- Indicator id: `precipitation_annual`
- Place id: `us-county-17007`
- 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/boone-county-illinois
- API: https://invokely.ai/api/v1/series?indicator=precipitation_annual&place=us-county-17007

| Period | inches |
|---|---:|
| 2025 | 32.93 |
| 2024 | 39.07 |
| 2023 | 36.03 |
| 2022 | 37.93 |
| 2021 | 26.76 |
| 2020 | 37.28 |
| 2019 | 47.14 |
| 2018 | 45.12 |
| 2017 | 44.3 |
| 2016 | 34.69 |
| 2015 | 41.14 |
| 2014 | 35.22 |
| 2013 | 41.41 |
| 2012 | 25.36 |
| 2011 | 40.84 |
| 2010 | 36.15 |
| 2009 | 44.46 |
| 2008 | 45.78 |
| 2007 | 40.04 |
| 2006 | 40.96 |
| 2005 | 25.47 |
| 2004 | 33.9 |
| 2003 | 29.31 |
| 2002 | 31.65 |
| 2001 | 38.2 |
| 2000 | 41.59 |
| 1999 | 37.17 |
| 1998 | 40.27 |
| 1997 | 29.45 |
| 1996 | 36.01 |
| 1995 | 32.74 |
| 1994 | 32.41 |
| 1993 | 42.34 |
| 1992 | 34.94 |
| 1991 | 35.33 |
| 1990 | 42.56 |
| 1989 | 26.53 |
| 1988 | 26.15 |
| 1987 | 38.84 |
| 1986 | 34.97 |
| 1985 | 39.76 |
| 1984 | 35.48 |
| 1983 | 35.45 |
| 1982 | 41.44 |
| 1981 | 33.44 |
| 1980 | 36.46 |
| 1979 | 37.65 |
| 1978 | 40.81 |
| 1977 | 35.46 |
| 1976 | 26.83 |
| 1975 | 35.22 |
| 1974 | 36.14 |
| 1973 | 46.42 |
| 1972 | 49.21 |
| 1971 | 29.56 |
| 1970 | 38.04 |
| 1969 | 34.85 |
| 1968 | 35.72 |
| 1967 | 35.93 |
| 1966 | 28.51 |
| 1965 | 43.36 |
| 1964 | 34.14 |
| 1963 | 28.23 |
| 1962 | 26.22 |
| 1961 | 38.01 |
| 1960 | 38.73 |
| 1959 | 43.29 |
| 1958 | 23.93 |
| 1957 | 35.02 |
| 1956 | 25.31 |
| 1955 | 27.77 |
| 1954 | 41.34 |
| 1953 | 28.25 |
| 1952 | 35.51 |
| 1951 | 39.83 |
| 1950 | 38.27 |