# Annual precipitation in Marion County

Annual precipitation in Marion County was 36.8 inches in 2025. Source: NOAA National Centers for Environmental Information.

- Indicator id: `precipitation_annual`
- Place id: `us-county-18097`
- 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/marion-county-indiana
- API: https://invokely.ai/api/v1/series?indicator=precipitation_annual&place=us-county-18097

| Period | inches |
|---|---:|
| 2025 | 36.8 |
| 2024 | 43.54 |
| 2023 | 34.62 |
| 2022 | 36.04 |
| 2021 | 45.79 |
| 2020 | 41.07 |
| 2019 | 45.82 |
| 2018 | 47.02 |
| 2017 | 45.82 |
| 2016 | 46.96 |
| 2015 | 45.43 |
| 2014 | 41.61 |
| 2013 | 44 |
| 2012 | 37.65 |
| 2011 | 54.31 |
| 2010 | 37 |
| 2009 | 46.62 |
| 2008 | 51.63 |
| 2007 | 39.92 |
| 2006 | 52.25 |
| 2005 | 45.08 |
| 2004 | 41.65 |
| 2003 | 49.8 |
| 2002 | 43.56 |
| 2001 | 42.21 |
| 2000 | 41.12 |
| 1999 | 32.23 |
| 1998 | 45.51 |
| 1997 | 32.94 |
| 1996 | 50.47 |
| 1995 | 35.37 |
| 1994 | 32.61 |
| 1993 | 51.66 |
| 1992 | 43.44 |
| 1991 | 36.32 |
| 1990 | 52.16 |
| 1989 | 46.75 |
| 1988 | 32.98 |
| 1987 | 31.81 |
| 1986 | 44.05 |
| 1985 | 47.28 |
| 1984 | 40.49 |
| 1983 | 37 |
| 1982 | 41.65 |
| 1981 | 38.45 |
| 1980 | 34.93 |
| 1979 | 46.59 |
| 1978 | 42.82 |
| 1977 | 38.64 |
| 1976 | 32.42 |
| 1975 | 44.02 |
| 1974 | 42.14 |
| 1973 | 44.6 |
| 1972 | 41.39 |
| 1971 | 37.7 |
| 1970 | 34.64 |
| 1969 | 42.47 |
| 1968 | 40.35 |
| 1967 | 36.03 |
| 1966 | 33.93 |
| 1965 | 37.15 |
| 1964 | 37.33 |
| 1963 | 30.58 |
| 1962 | 38.37 |
| 1961 | 40.74 |
| 1960 | 34.05 |
| 1959 | 39.09 |
| 1958 | 42.51 |
| 1957 | 52.87 |
| 1956 | 39.6 |
| 1955 | 40.2 |
| 1954 | 30.31 |
| 1953 | 34.72 |
| 1952 | 42.26 |
| 1951 | 39.64 |
| 1950 | 52.58 |