# Annual precipitation in Clay County

Annual precipitation in Clay County was 26.29 inches in 2025. Source: NOAA National Centers for Environmental Information.

- Indicator id: `precipitation_annual`
- Place id: `us-county-46027`
- 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/clay-county-south-dakota
- API: https://invokely.ai/api/v1/series?indicator=precipitation_annual&place=us-county-46027

| Period | inches |
|---|---:|
| 2025 | 26.29 |
| 2024 | 28.72 |
| 2023 | 26.97 |
| 2022 | 17.41 |
| 2021 | 22.17 |
| 2020 | 16.29 |
| 2019 | 34.06 |
| 2018 | 38.91 |
| 2017 | 28.9 |
| 2016 | 32.01 |
| 2015 | 29.99 |
| 2014 | 28.85 |
| 2013 | 26.17 |
| 2012 | 16.68 |
| 2011 | 23.95 |
| 2010 | 36.41 |
| 2009 | 28.38 |
| 2008 | 30.01 |
| 2007 | 28.05 |
| 2006 | 26.26 |
| 2005 | 31.77 |
| 2004 | 27.7 |
| 2003 | 26.78 |
| 2002 | 22.64 |
| 2001 | 27.93 |
| 2000 | 24.59 |
| 1999 | 25.01 |
| 1998 | 32.51 |
| 1997 | 21.15 |
| 1996 | 29.59 |
| 1995 | 32.4 |
| 1994 | 22.14 |
| 1993 | 31.98 |
| 1992 | 34.61 |
| 1991 | 23.54 |
| 1990 | 23.89 |
| 1989 | 16.84 |
| 1988 | 21.13 |
| 1987 | 23.49 |
| 1986 | 28.35 |
| 1985 | 27.52 |
| 1984 | 34.71 |
| 1983 | 31.08 |
| 1982 | 29.35 |
| 1981 | 22.74 |
| 1980 | 17.11 |
| 1979 | 30.61 |
| 1978 | 23.56 |
| 1977 | 27.45 |
| 1976 | 14.03 |
| 1975 | 23.45 |
| 1974 | 16.63 |
| 1973 | 26.22 |
| 1972 | 28.32 |
| 1971 | 23.5 |
| 1970 | 24.16 |
| 1969 | 28.18 |
| 1968 | 28.42 |
| 1967 | 20.6 |
| 1966 | 24.7 |
| 1965 | 32.51 |
| 1964 | 24.58 |
| 1963 | 21.2 |
| 1962 | 30.56 |
| 1961 | 24.84 |
| 1960 | 29.65 |
| 1959 | 29.48 |
| 1958 | 15.99 |
| 1957 | 25.65 |
| 1956 | 14.75 |
| 1955 | 16.29 |
| 1954 | 27.51 |
| 1953 | 29.9 |
| 1952 | 20.48 |
| 1951 | 36.23 |
| 1950 | 22.73 |