Fallon, MT has a semi-arid climate with hot summers and cold winters. The average temperature in July is around 70°F and the average temperature in January is around 20°F. Precipitation is generally light throughout the year and winter snowfall can vary from year to year. Winters are usually mild, but can be quite cold on occasion with temperatures sometimes dropping below 0°F. Summers are usually dry and can get quite warm with temperatures reaching into the high 90s occasionally.
Fallon, Montana gets 13 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Fallon averages 22 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 201 sunny days per year in Fallon. The US average is 205 sunny days.
Fallon gets some kind of precipitation, on average, 55 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 87 degrees
Winter Low: the January low is 6
Rain: averages 13 inches of rain a year
Snow: averages 22 inches of snow a year