# Counties in Washington by annual precipitation, 2025

All 39 values come from NOAA National Centers for Environmental Information for 2025, so the places are comparable.

- Indicator id: `precipitation_annual`
- 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.
- 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
- 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/rankings/annual-precipitation/washington-counties

| Rank | Place | inches |
|---:|---|---:|
| 1 | Jefferson County | 95.38 |
| 2 | Skamania County | 86.51 |
| 3 | Grays Harbor County | 86.47 |
| 4 | Pacific County | 80.92 |
| 5 | Skagit County | 79.83 |
| 6 | Mason County | 79.29 |
| 7 | Clallam County | 78.66 |
| 8 | Snohomish County | 78.24 |
| 9 | Whatcom County | 73.81 |
| 10 | Cowlitz County | 73.07 |
| 11 | King County | 70.87 |
| 12 | Wahkiakum County | 70.09 |
| 13 | Lewis County | 68.55 |
| 14 | Clark County | 61.46 |
| 15 | Pierce County | 61.12 |
| 16 | Thurston County | 46.01 |
| 17 | Chelan County | 38.75 |
| 18 | Kitsap County | 37.31 |
| 19 | Kittitas County | 31.66 |
| 20 | Pend Oreille County | 30.91 |
| 21 | San Juan County | 28.98 |
| 22 | Yakima County | 26.47 |
| 23 | Columbia County | 23.81 |
| 24 | Klickitat County | 22.59 |
| 25 | Island County | 22.12 |
| 26 | Okanogan County | 21.1 |
| 27 | Stevens County | 20.43 |
| 28 | Spokane County | 18.45 |
| 29 | Garfield County | 17.5 |
| 30 | Whitman County | 17.28 |
| 31 | Ferry County | 15.34 |
| 32 | Walla Walla County | 14.06 |
| 33 | Asotin County | 12.94 |
| 34 | Lincoln County | 12.02 |
| 35 | Adams County | 11.38 |
| 36 | Franklin County | 10.58 |
| 37 | Douglas County | 10.15 |
| 38 | Benton County | 9.16 |
| 39 | Grant County | 7.25 |