# Annual precipitation in Piatt County

Annual precipitation in Piatt County was 26.75 inches in 2025. Source: NOAA National Centers for Environmental Information.

- Indicator id: `precipitation_annual`
- Place id: `us-county-17147`
- 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/piatt-county-illinois
- API: https://invokely.ai/api/v1/series?indicator=precipitation_annual&place=us-county-17147

| Period | inches |
|---|---:|
| 2025 | 26.75 |
| 2024 | 42.68 |
| 2023 | 32.53 |
| 2022 | 35.36 |
| 2021 | 44.48 |
| 2020 | 40.43 |
| 2019 | 42.82 |
| 2018 | 43.92 |
| 2017 | 33.92 |
| 2016 | 37.76 |
| 2015 | 45.38 |
| 2014 | 42.27 |
| 2013 | 36.98 |
| 2012 | 30.8 |
| 2011 | 38.76 |
| 2010 | 38.8 |
| 2009 | 50.87 |
| 2008 | 52.49 |
| 2007 | 35.47 |
| 2006 | 38.99 |
| 2005 | 34.3 |
| 2004 | 40.08 |
| 2003 | 37.34 |
| 2002 | 39.28 |
| 2001 | 33.98 |
| 2000 | 34.73 |
| 1999 | 36.52 |
| 1998 | 42.97 |
| 1997 | 35.62 |
| 1996 | 38.26 |
| 1995 | 36.35 |
| 1994 | 35.54 |
| 1993 | 49.82 |
| 1992 | 41.82 |
| 1991 | 32.97 |
| 1990 | 53.65 |
| 1989 | 31.5 |
| 1988 | 27.4 |
| 1987 | 36.24 |
| 1986 | 36.77 |
| 1985 | 45.4 |
| 1984 | 37.65 |
| 1983 | 41.8 |
| 1982 | 43.56 |
| 1981 | 45.87 |
| 1980 | 31.13 |
| 1979 | 38.31 |
| 1978 | 35.08 |
| 1977 | 44.88 |
| 1976 | 29.91 |
| 1975 | 44.96 |
| 1974 | 44.54 |
| 1973 | 47.89 |
| 1972 | 41.41 |
| 1971 | 39.94 |
| 1970 | 35.55 |
| 1969 | 40.06 |
| 1968 | 39.21 |
| 1967 | 38.84 |
| 1966 | 36.8 |
| 1965 | 42.67 |
| 1964 | 33.17 |
| 1963 | 27.85 |
| 1962 | 33.46 |
| 1961 | 39.72 |
| 1960 | 33.03 |
| 1959 | 32.58 |
| 1958 | 34.59 |
| 1957 | 40.72 |
| 1956 | 30.02 |
| 1955 | 36.73 |
| 1954 | 29.27 |
| 1953 | 27.1 |
| 1952 | 33.27 |
| 1951 | 41.89 |
| 1950 | 39.3 |