# Annual precipitation in Union County

Annual precipitation in Union County was 25.13 inches in 2025. Source: NOAA National Centers for Environmental Information.

- Indicator id: `precipitation_annual`
- Place id: `us-county-41061`
- 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/union-county-oregon
- API: https://invokely.ai/api/v1/series?indicator=precipitation_annual&place=us-county-41061

| Period | inches |
|---|---:|
| 2025 | 25.13 |
| 2024 | 28.36 |
| 2023 | 24.8 |
| 2022 | 29.79 |
| 2021 | 25.06 |
| 2020 | 32.23 |
| 2019 | 29.46 |
| 2018 | 29.27 |
| 2017 | 31 |
| 2016 | 27.62 |
| 2015 | 25.32 |
| 2014 | 32.9 |
| 2013 | 28.78 |
| 2012 | 31.61 |
| 2011 | 30.56 |
| 2010 | 32.1 |
| 2009 | 28.48 |
| 2008 | 29.05 |
| 2007 | 23.73 |
| 2006 | 28.9 |
| 2005 | 24.01 |
| 2004 | 29.92 |
| 2003 | 29.94 |
| 2002 | 21.5 |
| 2001 | 22.56 |
| 2000 | 25.88 |
| 1999 | 24.79 |
| 1998 | 35.6 |
| 1997 | 28.25 |
| 1996 | 35.84 |
| 1995 | 36.63 |
| 1994 | 27.34 |
| 1993 | 27.78 |
| 1992 | 23.88 |
| 1991 | 28.61 |
| 1990 | 27.65 |
| 1989 | 26.47 |
| 1988 | 26.86 |
| 1987 | 19.8 |
| 1986 | 27.93 |
| 1985 | 22.96 |
| 1984 | 38.4 |
| 1983 | 34.89 |
| 1982 | 35.03 |
| 1981 | 31.99 |
| 1980 | 31.47 |
| 1979 | 27.38 |
| 1978 | 30.94 |
| 1977 | 28.62 |
| 1976 | 22.8 |
| 1975 | 33.32 |
| 1974 | 23.77 |
| 1973 | 28.48 |
| 1972 | 28.37 |
| 1971 | 32.28 |
| 1970 | 34.85 |
| 1969 | 26.41 |
| 1968 | 29.95 |
| 1967 | 26.03 |
| 1966 | 27.98 |
| 1965 | 26.14 |
| 1964 | 32.37 |
| 1963 | 25.37 |
| 1962 | 26.22 |
| 1961 | 27.53 |
| 1960 | 29.78 |
| 1959 | 27.32 |
| 1958 | 34.73 |
| 1957 | 32.66 |
| 1956 | 32.23 |
| 1955 | 30.24 |
| 1954 | 22.71 |
| 1953 | 35.02 |
| 1952 | 22.01 |
| 1951 | 27.07 |
| 1950 | 29.48 |