# Annual precipitation in Porter County

Annual precipitation in Porter County was 32.04 inches in 2025. Source: NOAA National Centers for Environmental Information.

- Indicator id: `precipitation_annual`
- Place id: `us-county-18127`
- 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/porter-county-indiana
- API: https://invokely.ai/api/v1/series?indicator=precipitation_annual&place=us-county-18127

| Period | inches |
|---|---:|
| 2025 | 32.04 |
| 2024 | 41.33 |
| 2023 | 40.23 |
| 2022 | 31.26 |
| 2021 | 37.74 |
| 2020 | 38.69 |
| 2019 | 46.9 |
| 2018 | 41.11 |
| 2017 | 40.74 |
| 2016 | 40.8 |
| 2015 | 39.54 |
| 2014 | 45.25 |
| 2013 | 41.32 |
| 2012 | 31.27 |
| 2011 | 46.45 |
| 2010 | 37.12 |
| 2009 | 42.66 |
| 2008 | 44.97 |
| 2007 | 40.63 |
| 2006 | 40.49 |
| 2005 | 31.19 |
| 2004 | 38.73 |
| 2003 | 37.85 |
| 2002 | 31.57 |
| 2001 | 40.8 |
| 2000 | 36.18 |
| 1999 | 32.7 |
| 1998 | 38.23 |
| 1997 | 37.57 |
| 1996 | 41.73 |
| 1995 | 33.86 |
| 1994 | 34.65 |
| 1993 | 49.08 |
| 1992 | 34.6 |
| 1991 | 38.87 |
| 1990 | 55.27 |
| 1989 | 32.47 |
| 1988 | 33.87 |
| 1987 | 38.62 |
| 1986 | 35.74 |
| 1985 | 40.82 |
| 1984 | 37.07 |
| 1983 | 37.96 |
| 1982 | 38.43 |
| 1981 | 43.87 |
| 1980 | 32.73 |
| 1979 | 33.87 |
| 1978 | 33.35 |
| 1977 | 35.24 |
| 1976 | 35.4 |
| 1975 | 41.23 |
| 1974 | 37.88 |
| 1973 | 38.58 |
| 1972 | 43.49 |
| 1971 | 34.87 |
| 1970 | 40.5 |
| 1969 | 34.14 |
| 1968 | 39.25 |
| 1967 | 39.85 |
| 1966 | 37.78 |
| 1965 | 44.13 |
| 1964 | 30.79 |
| 1963 | 28.34 |
| 1962 | 27.41 |
| 1961 | 41.82 |
| 1960 | 33.32 |
| 1959 | 45.29 |
| 1958 | 30.98 |
| 1957 | 43.87 |
| 1956 | 28.17 |
| 1955 | 35.29 |
| 1954 | 48.88 |
| 1953 | 31.66 |
| 1952 | 29.37 |
| 1951 | 40.62 |
| 1950 | 42.52 |