# Annual precipitation in Washington County

Annual precipitation in Washington County was 48.47 inches in 2025. Source: NOAA National Centers for Environmental Information.

- Indicator id: `precipitation_annual`
- Place id: `us-county-41067`
- 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/washington-county-oregon
- API: https://invokely.ai/api/v1/series?indicator=precipitation_annual&place=us-county-41067

| Period | inches |
|---|---:|
| 2025 | 48.47 |
| 2024 | 61.2 |
| 2023 | 52.64 |
| 2022 | 53.93 |
| 2021 | 57.2 |
| 2020 | 52.61 |
| 2019 | 40.76 |
| 2018 | 43.62 |
| 2017 | 67.45 |
| 2016 | 65.5 |
| 2015 | 59.3 |
| 2014 | 57.95 |
| 2013 | 36.16 |
| 2012 | 70.66 |
| 2011 | 52.16 |
| 2010 | 64.31 |
| 2009 | 45.7 |
| 2008 | 42.54 |
| 2007 | 49.27 |
| 2006 | 66.82 |
| 2005 | 51.55 |
| 2004 | 44.47 |
| 2003 | 56.14 |
| 2002 | 49.6 |
| 2001 | 47.58 |
| 2000 | 41.69 |
| 1999 | 66.4 |
| 1998 | 72.67 |
| 1997 | 67.1 |
| 1996 | 89.01 |
| 1995 | 70.55 |
| 1994 | 58.37 |
| 1993 | 45.35 |
| 1992 | 46.81 |
| 1991 | 49.51 |
| 1990 | 56.19 |
| 1989 | 41.26 |
| 1988 | 49.83 |
| 1987 | 49.87 |
| 1986 | 54.12 |
| 1985 | 35.53 |
| 1984 | 60.59 |
| 1983 | 71.65 |
| 1982 | 67.16 |
| 1981 | 58.19 |
| 1980 | 57.76 |
| 1979 | 50.82 |
| 1978 | 46.58 |
| 1977 | 53.07 |
| 1976 | 40.29 |
| 1975 | 61.86 |
| 1974 | 62.36 |
| 1973 | 62.92 |
| 1972 | 60.36 |
| 1971 | 68.48 |
| 1970 | 64.36 |
| 1969 | 51.53 |
| 1968 | 72.82 |
| 1967 | 49.85 |
| 1966 | 57.53 |
| 1965 | 46.21 |
| 1964 | 62.39 |
| 1963 | 52.77 |
| 1962 | 52.01 |
| 1961 | 66.13 |
| 1960 | 58.9 |
| 1959 | 53.18 |
| 1958 | 56.95 |
| 1957 | 50.27 |
| 1956 | 53.59 |
| 1955 | 65.52 |
| 1954 | 61.75 |
| 1953 | 66.38 |
| 1952 | 39.44 |
| 1951 | 62.35 |
| 1950 | 71.74 |