US Geography / US Weather / Missouri Weather / Helena |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 32° | 38° | 51° | 64° | 74° | 82° | 87° | 84° | 76° | 66° | 51° | 36° |
| Avg. Low | 11° | 16° | 28° | 40° | 51° | 60° | 65° | 62° | 54° | 42° | 30° | 17° |
| Mean | 22° | 28° | 40° | 52° | 64° | 71° | 76° | 74° | 66° | 55° | 41° | 27° |
| Avg. Precip. | 1.1 in | 1.0 in | 2.4 in | 3.1 in | 4.5 in | 4.5 in | 3.9 in | 4.3 in | 5.1 in | 3.0 in | 1.8 in | 1.4 in |
Degrees in Fahrenheit
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