US Geography / US Weather / Idaho Weather / Lewiston |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 38° | 46° | 54° | 61° | 70° | 78° | 88° | 88° | 77° | 64° | 48° | 40° |
| Avg. Low | 27° | 31° | 34° | 38° | 46° | 54° | 58° | 58° | 50° | 41° | 34° | 28° |
| Mean | 34° | 38° | 44° | 51° | 58° | 67° | 74° | 74° | 64° | 52° | 41° | 35° |
| Avg. Precip. | 1.3 in | 0.9 in | 1.1 in | 1.1 in | 1.3 in | 1.3 in | 0.7 in | 0.8 in | 0.8 in | 0.9 in | 1.3 in | 1.3 in |
Degrees in Fahrenheit
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