US Geography / US Weather / Washington Weather / Dupont |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 44° | 48° | 54° | 58° | 65° | 70° | 75° | 75° | 70° | 58° | 50° | 45° |
| Avg. Low | 34° | 36° | 37° | 38° | 44° | 48° | 52° | 54° | 48° | 44° | 38° | 35° |
| Mean | 40° | 44° | 45° | 48° | 55° | 60° | 64° | 65° | 60° | 52° | 45° | 40° |
| Avg. Precip. | 7.9 in | 6.4 in | 5.7 in | 3.3 in | 2.1 in | 1.6 in | 1.0 in | 1.3 in | 2.3 in | 4.5 in | 8.3 in | 8.4 in |
Degrees in Fahrenheit
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