Billings Snowfall Totals & Accumulation Averages
This page pulls together information on when, how much and how often Billings, Montana has snow.
There are data and descriptions here of how many days it snows and the total amount of snowfall that Billings usually gets. There are also monthly and yearly counts of the days that the city normally has heavy snowstorms and deep snow accumulated on the ground. Plus there's information on when Billings can expect the first and last snowfalls of the season.
All the numbers are long-term historical averages based on weather data gathered from 1981 to 2010 at the Billings Logan International Airport.
How Often it Snows in Billings
This first table lists monthly and yearly totals for amount of snow and how many days it snows at least 0.1 inches (0.25 centimetres).
These averages don't show how much the snowfall in Billings varies from year to year.
In December, for instance, one in four years totals over 11.1 inches of snow. Another 25 percent of years receive less than 3.7 inches for the month.
Similarly in January, fresh snowfall in the heaviest years amounts to over 11.3 inches, while the lightest years get less than 3.4 inches.
New snow for February ranges from over 8.7 inches in heavy snowfall years to under 2.5 inches in light years.
When Billings Has Its First & Last Snowfalls
The first snowfall of winter for Billings most often arrives in October although during about one in four years, October remains free of snow. Less commonly, September can also receive snow.
The snow season ends most often in May. About once every four years May has no snow, which moves the last snowfall to April.
Billings is normally free of snow every year from June to August.
How Many Snowstorms Billings Gets
Just over half the days with snowfall in Billings amount to just a skiff, leaving less than an inch of fresh snow on the ground. For 17 days a year on average, the amount of new snow totals at least an inch.
Snowstorms of over five inches a day normally occur a couple times a year. Major blizzards that dump ten inches or more in one day are not expected here.
How Much Snow Normally Accumulates in Billings
For more than one-third of winter days, Billings has at least an inch of snow on the ground.
The snowpack can accumulate to over five inches deep at any time from September to May. In most years though, the snow depth is unlikely to top five inches from April and October.
National Climatic Data Center. NOAA's 1981-2010 Climate Normals.