US Geography / US Weather / Montana Weather / Helena |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 28° | 36° | 44° | 56° | 65° | 75° | 85° | 84° | 68° | 58° | 42° | 31° |
| Avg. Low | 8° | 15° | 22° | 30° | 38° | 48° | 54° | 51° | 41° | 31° | 20° | 11° |
| Mean | 20° | 26° | 34° | 44° | 54° | 62° | 68° | 67° | 55° | 45° | 32° | 21° |
| Avg. Precip. | 0.6 in | 0.4 in | 0.7 in | 1.0 in | 1.8 in | 1.9 in | 1.1 in | 1.3 in | 1.3 in | 0.6 in | 0.5 in | 0.6 in |
Degrees in Fahrenheit
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