Seattle averages 39.3 inches of precipitation a year, less than Miami (67.4), Houston (51.8), Atlanta (50.4), New York (49.5), Boston (43.6) and Washington, D.C. (41.8), and a little more than Chicago (37.9) and Portland, Ore. (36.9). NOAA 1991–2020 climate normals.
| annual_precip_in | city | group | rain_days |
|---|---|---|---|
| 67.41 | Miami | Other cities | 141 |
| 51.84 | Houston | Other cities | 104.4 |
| 50.43 | Atlanta | Other cities | 116.3 |
| 49.52 | New York | Other cities | 125.4 |
| 43.59 | Boston | Other cities | 128.4 |
| 41.82 | Washington, D.C. | Other cities | 117.7 |
| 39.34 | Seattle | Seattle | 156.2 |
| 37.86 | Chicago | Other cities | 125.8 |
| 36.92 | Portland, Ore. | Other cities | 157 |