Charleston Snowfall Totals & Accumulation Averages
This page pulls together information on when, how much and how often Charleston, West Virginia has snow.
There are data and descriptions here of how many days it snows and the total amount of snowfall that Charleston usually gets. There are also monthly and yearly counts of the days that Charleston normally has heavy snowstorms and deep snow accumulated on the ground. Plus there's information on when Charleston 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 Charleston's Yeager Airport.
How Often it Snows in Charleston
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 Charleston varies from year to year.
In December, for instance, one in four years totals over 8.8 inches of snow. Another 25 percent of years receive less than 3 inches for the month.
Similarly in January, fresh snowfall in the heaviest years amounts to over 14.3 inches, while the lightest years get less than 5.8 inches.
New snow for February ranges from a foot or more in heavy snowfall years to under 5.8 inches in light years.
When Charleston Has Its First & Last Snowfalls
The first snowfall of winter for Charleston usually arrives in November. Some years do make it through November without snow, pushing the first snowfall to December.
The season's last snowfall typically happens in March, although sometimes April also gets snow.
Charleston is normally free of snow every year from May to October.
How Many Snowstorms Charleston Gets
Most days of snowfall in Charleston leave just a skiff, amounting to less than an inch, of fresh snow on the ground. For 11 days a year on average, the amount of new snow totals at least an inch.
Snowstorms of over five inches occur just one day a year on average. But major blizzards that dump ten inches or more in one day are rare events, showing up about once a decade.
How Much Snow Normally Accumulates in Charleston
For about one-quarter of winter days, Charleston has at least an inch of snow on the ground.
Snow mostly accumulates during January and February. Typically, on 2 days in January and another 1 or 2 in February, the snow covering Charleston gets to five or more inches deep.
National Climatic Data Center. NOAA's 1981-2010 Climate Normals.