Great Falls (MT) Precipitation: Average Monthly Rainfall and Snowfall
This graph shows the average amount of rainfall per month in Great Falls (Montana). The numbers are calculated over a 30-year period to provide a reliable average.
- Great Falls has dry periods in January, February, March, November and December.
- On average, May is the wettest month with 67 mm of precipitation.
- On average, March is the driest month with 15 mm of precipitation.
- The average amount of annual precipitation is 387 mm.
Current rainfall in Great Falls (MT)
almost clear and no rain
partly cloudy and no rain
almost clear and no rain