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Fallon, MT Climate
1991 to 2020 normals at Terry, 8.9 mi from the center of Fallon, elevation 2250 ft.
Average weather by month
Select a month for daily normals and last year's weather
| Month | Range | High | Low | Precip. | Snow |
|---|---|---|---|---|---|
| January | 28° | 6° | 0.29 in | 3.3 in | |
| February | 34° | 11° | 0.34 in | 1.4 in | |
| March | 46° | 22° | 0.44 in | 1.2 in | |
| April | 58° | 32° | 1.43 in | 1.0 in | |
| May | 68° | 43° | 2.51 in | 0.0 in | |
| June | 78° | 53° | 2.36 in | 0.0 in | |
| July | 88° | 59° | 1.90 in | 0.0 in | |
| August | 87° | 56° | 1.31 in | 0.0 in | |
| September | 76° | 45° | 1.17 in | 0.0 in | |
| October | 59° | 33° | 0.92 in | 0.2 in | |
| November | 44° | 20° | 0.37 in | 1.6 in | |
| December | 32° | 10° | 0.32 in | 3.1 in | |
| Year | 58° | 13.36 in | 11.8 in |
Frequently asked questions
- What is the hottest month in Fallon, MT?
- July is the warmest month, with a normal high of 88°F at Terry.
- What is the coldest month in Fallon, MT?
- January is the coldest month, with a normal low of 6°F.
- What is the wettest month in Fallon, MT?
- May has the most precipitation on average, about 2.51 inches.