US Geography / US Weather / Washington Weather / Toppenish |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 38 | 47 | 57 | 64 | 74 | 82 | 88 | 87 | 78 | 66 | 48 | 38 |
| Avg. Low | 22 | 27 | 32 | 38 | 46 | 54 | 58 | 57 | 48 | 37 | 30 | 24 |
| Mean | 30 | 37 | 45 | 52 | 60 | 68 | 74 | 74 | 64 | 52 | 40 | 31 |
| Avg. Precip. | 1.0 in | 0.7 in | 0.6 in | 0.5 in | 0.5 in | 0.5 in | 0.3 in | 0.4 in | 0.4 in | 0.4 in | 1.0 in | 1.3 in |
Degrees in Fahrenheit
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