US Geography / US Weather / Washington Weather / Issaquah |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 44 | 48 | 52 | 57 | 64 | 68 | 75 | 75 | 68 | 58 | 48 | 42 |
| Avg. Low | 31 | 32 | 34 | 36 | 41 | 46 | 48 | 48 | 44 | 38 | 35 | 31 |
| Mean | 37 | 41 | 44 | 47 | 54 | 58 | 62 | 62 | 57 | 50 | 42 | 37 |
| Avg. Precip. | 7.7 in | 6.1 in | 5.4 in | 4.4 in | 3.6 in | 3.0 in | 1.6 in | 1.9 in | 3.3 in | 4.6 in | 8.0 in | 8.1 in |
Degrees in Fahrenheit
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