Duluth Snowfall Totals & Accumulation Averages
This page pulls together information on when, how much and how often Duluth, Minnesota has snow.
There are data and descriptions here of how many days it snows and the total amount of snowfall that Duluth 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 Duluth can expect the first and last snowfalls of the season.
The first set of monthly snow totals are averages for 2010 to 2019. All the other numbers are averages, based on climate data gathered from 1991 to 2020 at the Duluth International Airport.
How Often it Snows in Duluth
The next two tables list 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 Duluth varies from year to year.
In December, for instance, one in four years totals over 25.9 inches of snow. Another 25 percent of years receive less than 8.6 inches for the month.
Similarly in January, fresh snowfall in the heaviest years amounts to over 18.9 inches, while the lightest years get less than 9.3 inches.
Snow in February ranges from over 20.1 inches in heavy snowfall years to 8.7 inches or less in light years.
When Duluth Has Its First & Last Snowfalls
Duluth's first snowfall of winter usually arrives in October, although it can show up as early as September or as late as November.
The season's last snowfall typically happens in April. Less commonly, a light snowfall lands in May.
Duluth is normally free of snow every year from June to August.
How Many Snowstorms Duluth Gets
Most days of snowfall in Duluth leave just a skiff, amounting to less than an inch, of fresh snow on the ground. For 25 days a year on average, the amount of new snow totals at least an inch.
Snowstorms of over five inches a day normally occur four times annually. But major blizzards that dump ten inches or more in one day don't happen every year.
How Much Snow Normally Accumulates in Duluth
For nearly all of winter, along with much of early spring and late fall, Duluth has at least an inch of snow on the ground, and often much more.
A snowpack of twenty or more inches deep can cover the city anytime from November to April, and on average lingers for 25 days a year.
Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.
NOAA National Centers for Environmental Information (NCEI). Climate Normals.