US Geography / US Weather / Oregon Weather / Hillsboro |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 45 | 50 | 55 | 60 | 67 | 74 | 78 | 80 | 74 | 64 | 52 | 45 |
| Avg. Low | 32 | 34 | 36 | 38 | 44 | 48 | 51 | 51 | 46 | 40 | 36 | 34 |
| Mean | 38 | 44 | 46 | 50 | 55 | 61 | 66 | 66 | 61 | 52 | 45 | 38 |
| Avg. Precip. | 5.9 in | 4.3 in | 4.0 in | 2.3 in | 1.6 in | 1.4 in | 0.5 in | 1.1 in | 1.5 in | 2.8 in | 5.7 in | 6.6 in |
Degrees in Fahrenheit
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