# Annual precipitation in Harrison County

Annual precipitation in Harrison County was 34.58 inches in 2025. Source: NOAA National Centers for Environmental Information.

- Indicator id: `precipitation_annual`
- Place id: `us-county-19085`
- 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/harrison-county-iowa
- API: https://invokely.ai/api/v1/series?indicator=precipitation_annual&place=us-county-19085

| Period | inches |
|---|---:|
| 2025 | 34.58 |
| 2024 | 32.85 |
| 2023 | 25.37 |
| 2022 | 20.83 |
| 2021 | 33.3 |
| 2020 | 21.46 |
| 2019 | 37.86 |
| 2018 | 41.32 |
| 2017 | 33.96 |
| 2016 | 35.53 |
| 2015 | 43.7 |
| 2014 | 38.21 |
| 2013 | 27.92 |
| 2012 | 22.58 |
| 2011 | 30.2 |
| 2010 | 37.64 |
| 2009 | 32.5 |
| 2008 | 35.37 |
| 2007 | 41.71 |
| 2006 | 32.93 |
| 2005 | 25.84 |
| 2004 | 31.24 |
| 2003 | 26.04 |
| 2002 | 24.67 |
| 2001 | 33.45 |
| 2000 | 23.68 |
| 1999 | 31.8 |
| 1998 | 39.06 |
| 1997 | 27.62 |
| 1996 | 35.18 |
| 1995 | 30.37 |
| 1994 | 27.49 |
| 1993 | 38.74 |
| 1992 | 34.4 |
| 1991 | 34.21 |
| 1990 | 29.54 |
| 1989 | 24.78 |
| 1988 | 19.38 |
| 1987 | 32.94 |
| 1986 | 42.58 |
| 1985 | 27.47 |
| 1984 | 38.87 |
| 1983 | 33.19 |
| 1982 | 38.64 |
| 1981 | 22.87 |
| 1980 | 23.55 |
| 1979 | 31.69 |
| 1978 | 31.04 |
| 1977 | 35.76 |
| 1976 | 19.52 |
| 1975 | 29.86 |
| 1974 | 25.16 |
| 1973 | 37.32 |
| 1972 | 37.58 |
| 1971 | 28.15 |
| 1970 | 24.73 |
| 1969 | 28.79 |
| 1968 | 32.54 |
| 1967 | 27.73 |
| 1966 | 20.38 |
| 1965 | 39.16 |
| 1964 | 32.86 |
| 1963 | 24.82 |
| 1962 | 31.64 |
| 1961 | 31.1 |
| 1960 | 29.68 |
| 1959 | 35.51 |
| 1958 | 25.5 |
| 1957 | 34.6 |
| 1956 | 24.24 |
| 1955 | 19.66 |
| 1954 | 29.05 |
| 1953 | 21.46 |
| 1952 | 33.26 |
| 1951 | 41.58 |
| 1950 | 28.52 |