US Geography / US Weather / Washington Weather / Sunnyside |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 38 | 48 | 58 | 65 | 74 | 82 | 88 | 88 | 78 | 67 | 50 | 38 |
| Avg. Low | 24 | 28 | 34 | 38 | 45 | 52 | 55 | 54 | 46 | 36 | 31 | 24 |
| Mean | 32 | 38 | 46 | 52 | 60 | 68 | 72 | 71 | 64 | 52 | 41 | 32 |
| Avg. Precip. | 0.9 in | 0.6 in | 0.6 in | 0.5 in | 0.5 in | 0.4 in | 0.3 in | 0.3 in | 0.4 in | 0.5 in | 0.9 in | 1.1 in |
Degrees in Fahrenheit
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