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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