Average Annual Precipitation for Montana

The tables below give yearly averages for rainfall plus snowfall at cities, towns and parks in Montana.

Each place has a total for the amount of precipitation it usually receives in a year. Most locations also have information on the number of days with wet weather. That includes the days when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The annual precipitation totals are averages based on weather data collected from 1981 to 2010 for the NOAA National Climatic Data Center.

You can jump to a separate table for each region of the state: Northwestern, Southwestern, South - Central and Eastern Montana.

Northwestern Montana

Southwestern Montana

South - Central Montana

Eastern Montana