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Rainiest Cities in Oregon
Average annual precipitation, ranked
1991–2020 NOAA normals · 5 cities
Portland is the rainiest city in Oregon, with 44.1 in of precipitation in an average year. Every Oregon city with a reporting NOAA station, ranked.
| # | City | Average annual precipitation | |
|---|---|---|---|
| 1 | Portland | 44.1 in | wettest December |
| 2 | Eugene | 40.8 in | wettest December |
| 3 | Gresham | 40.7 in | wettest December |
| 4 | Salem | 40.1 in | wettest December |
| 5 | Hillsboro | 35.9 in | wettest December |
Thirty-year normals and records from each city's NOAA GHCN-Daily station, computed 2026-08-30. Cities with a population of 100,000 or more and a reporting station. Each city name opens its climate page.
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Normals and records: NOAA GHCN-Daily stations. Sunshine from ERA5 reanalysis. City locations: GeoNames (CC BY 4.0).