US Geography / US Weather / Washington Weather / Walla Walla |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 38° | 46° | 55° | 62° | 70° | 80° | 88° | 87° | 77° | 64° | 48° | 40° |
| Avg. Low | 28° | 34° | 37° | 41° | 47° | 54° | 60° | 61° | 52° | 44° | 35° | 28° |
| Mean | 34° | 40° | 46° | 52° | 58° | 68° | 75° | 75° | 65° | 54° | 44° | 35° |
| Avg. Precip. | 2.3 in | 1.8 in | 2.1 in | 1.7 in | 1.6 in | 1.0 in | 0.6 in | 0.8 in | 1.0 in | 1.6 in | 2.6 in | 2.5 in |
Degrees in Fahrenheit
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