US Geography / US Weather / Oregon Weather / Sisters |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 38 | 45 | 50 | 57 | 65 | 74 | 84 | 82 | 74 | 64 | 47 | 40 |
| Avg. Low | 18 | 24 | 25 | 27 | 32 | 38 | 41 | 41 | 34 | 28 | 25 | 18 |
| Mean | 30 | 34 | 38 | 44 | 48 | 57 | 62 | 62 | 54 | 46 | 36 | 30 |
| Avg. Precip. | 2.5 in | 1.7 in | 1.3 in | 0.8 in | 0.6 in | 0.6 in | 0.4 in | 0.4 in | 0.5 in | 0.9 in | 2.1 in | 2.6 in |
Degrees in Fahrenheit
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