CHIEF JOSEPH DAM, WA US
GHCN ID: USC00451400 · WA, US · 254.2 m elevation · Records 1949-2020 (71 years)
Primary station for Brewster, WA.
Monthly climate normals (1991-2020)
| Month | High | Low | Mean | Precip | Snow |
|---|---|---|---|---|---|
| January | 34.3°F | 22.7°F | 28.5°F | 1.42 in | 8.5 in |
| February | 41.5°F | 25.0°F | 33.3°F | 0.95 in | 3.1 in |
| March | 54.2°F | 31.5°F | 42.9°F | 1.05 in | 0.6 in |
| April | 64.4°F | 37.8°F | 51.1°F | 0.62 in | — |
| May | 73.8°F | 45.9°F | 59.9°F | 0.92 in | — |
| June | 80.7°F | 52.0°F | 66.4°F | 0.81 in | — |
| July | 90.9°F | 58.3°F | 74.6°F | 0.48 in | — |
| August | 90.4°F | 57.5°F | 73.9°F | 0.22 in | — |
| September | 79.9°F | 49.1°F | 64.5°F | 0.35 in | — |
| October | 62.6°F | 38.3°F | 50.4°F | 0.78 in | — |
| November | 45.4°F | 29.5°F | 37.4°F | 1.16 in | 2.2 in |
| December | 34.6°F | 23.2°F | 28.9°F | 2.01 in | 13.5 in |