# Annual precipitation in Mahaska County

Annual precipitation in Mahaska County was 30.58 inches in 2025. Source: NOAA National Centers for Environmental Information.

- Indicator id: `precipitation_annual`
- Place id: `us-county-19123`
- 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/mahaska-county-iowa
- API: https://invokely.ai/api/v1/series?indicator=precipitation_annual&place=us-county-19123

| Period | inches |
|---|---:|
| 2025 | 30.58 |
| 2024 | 40.17 |
| 2023 | 24.74 |
| 2022 | 27.86 |
| 2021 | 32.38 |
| 2020 | 34.16 |
| 2019 | 42.79 |
| 2018 | 39.65 |
| 2017 | 25.29 |
| 2016 | 30.77 |
| 2015 | 43.87 |
| 2014 | 42.86 |
| 2013 | 34.75 |
| 2012 | 27.42 |
| 2011 | 35.45 |
| 2010 | 53.45 |
| 2009 | 45.8 |
| 2008 | 48.17 |
| 2007 | 46.86 |
| 2006 | 32.56 |
| 2005 | 25.2 |
| 2004 | 33.27 |
| 2003 | 30.09 |
| 2002 | 28.37 |
| 2001 | 35.04 |
| 2000 | 31.49 |
| 1999 | 30.62 |
| 1998 | 45.49 |
| 1997 | 35.18 |
| 1996 | 33.8 |
| 1995 | 33.27 |
| 1994 | 27.44 |
| 1993 | 50.36 |
| 1992 | 40.36 |
| 1991 | 34.58 |
| 1990 | 42.82 |
| 1989 | 30.24 |
| 1988 | 18.23 |
| 1987 | 36.72 |
| 1986 | 40.81 |
| 1985 | 32.87 |
| 1984 | 41.76 |
| 1983 | 36.39 |
| 1982 | 47.62 |
| 1981 | 33.93 |
| 1980 | 29.73 |
| 1979 | 32.51 |
| 1978 | 40.93 |
| 1977 | 36.84 |
| 1976 | 29.19 |
| 1975 | 28.17 |
| 1974 | 38.86 |
| 1973 | 46.44 |
| 1972 | 36.18 |
| 1971 | 27.86 |
| 1970 | 40.27 |
| 1969 | 41.35 |
| 1968 | 27.18 |
| 1967 | 31.45 |
| 1966 | 27.53 |
| 1965 | 43.48 |
| 1964 | 28.2 |
| 1963 | 29.33 |
| 1962 | 32.4 |
| 1961 | 42.14 |
| 1960 | 40.12 |
| 1959 | 41.93 |
| 1958 | 29.83 |
| 1957 | 34.28 |
| 1956 | 19.03 |
| 1955 | 27.05 |
| 1954 | 30.28 |
| 1953 | 21.59 |
| 1952 | 34.09 |
| 1951 | 46.49 |
| 1950 | 24.94 |