Helena, MN has a humid continental climate with warm, humid summers and cold, snowy winters. The average annual temperature is around 10°C (50°F). In the summer months temperatures often reach into the high 20s Celsius (mid 80s Fahrenheit) while in the winter months temperatures drop to below freezing. There are four distinct seasons in Helena, with the short spring and fall months providing a transition from one season to another. Snowfall can be expected in the winter months as well as precipitation throughout the year. Humidity levels remain relatively steady throughout the year with occasional bouts of higher levels during periods of rainfall or snowfall.
Helena, Minnesota gets 32 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Helena averages 47 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 196 sunny days per year in Helena. The US average is 205 sunny days.
Helena gets some kind of precipitation, on average, 94 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 82 degrees
Winter Low: the January low is 4
Rain: averages 32 inches of rain a year
Snow: averages 47 inches of snow a year