99658 St. Marys, AK has a subarctic climate with long, cold and dry winters and short, relatively mild summers. Winters are characterized by temperatures typically ranging from -20 to 10 degrees Fahrenheit, while summertime temperatures average around 45 degrees Fahrenheit during the day but can drop below freezing at night. The area receives an average of 12 inches of precipitation each year, mainly in the form of snowfall in the winter months, making it an ideal environment for outdoor activities such as skiing and snowshoeing.
St. Marys (zip 99658), Alaska gets 19 inches of rain, on average, per year. The US average is 38 inches of rain per year.
St. Marys (zip 99658) averages 62 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 127 sunny days per year in St. Marys (zip 99658). The US average is 205 sunny days.
St. Marys (zip 99658) gets some kind of precipitation, on average, 146 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 63 degrees
Winter Low: the January low is 1
Rain: averages 19 inches of rain a year
Snow: averages 62 inches of snow a year