US Geography / US Weather / Pennsylvania Weather / Washington |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 37 | 40 | 51 | 62 | 72 | 80 | 84 | 82 | 76 | 65 | 54 | 41 |
| Avg. Low | 16 | 16 | 26 | 34 | 44 | 54 | 57 | 56 | 48 | 36 | 28 | 22 |
| Mean | 27 | 28 | 38 | 48 | 58 | 67 | 71 | 68 | 64 | 51 | 42 | 32 |
| Avg. Precip. | 2.5 in | 2.3 in | 3.5 in | 3.5 in | 4.0 in | 3.8 in | 4.3 in | 3.7 in | 3.1 in | 2.5 in | 3.3 in | 2.8 in |
Degrees in Fahrenheit
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