US Geography / US Weather / Montana Weather / Darby |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| Avg. High | 36 | 44 | 48 | 58 | 67 | 76 | 84 | 84 | 72 | 62 | 46 | 37 |
| Avg. Low | 18 | 22 | 25 | 30 | 38 | 44 | 47 | 47 | 38 | 32 | 25 | 18 |
| Mean | 27 | 34 | 38 | 45 | 54 | 60 | 66 | 66 | 56 | 47 | 36 | 28 |
| Avg. Precip. | 1.7 in | 1.0 in | 1.0 in | 1.1 in | 2.0 in | 1.8 in | 0.9 in | 1.3 in | 1.3 in | 1.0 in | 1.3 in | 1.4 in |
Degrees in Fahrenheit
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