Peoria Snowfall Totals & Accumulation Averages
This page pulls together information on when, how much and how often Peoria, Illinois has snow.
There are data and descriptions here of how many days it snows and the total amount of snowfall that Peoria usually gets. There are also monthly and yearly counts of the days that Peoria normally has heavy snowstorms and deep snow accumulated on the ground. Plus there's information on when Peoria can expect the first and last snowfalls of the season.
All the numbers are averages, based on climate data gathered from 1981 to 2010 at the Greater Peoria Regional Airport.
How Often it Snows in Peoria
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 Peoria's snowfall varies from year to year.
In December, for instance, one in four years totals ten-and-a-half inches or more of snow. Another 25 percent of years receive 3.3 inches or less for the month.
Similarly in January, fresh snowfall in the heaviest years amounts to over 8.7 inches, while the lightest years get less than 4.9 inches.
Snow in February ranges from over 10.4 inches in heavy snowfall years to under 1.5 inches in light years.
When Peoria Has Its First & Last Snowfalls
Peoria's first snowfall of winter usually arrives in November, although at least one in four years don't see snow until December.
Over the long-term Peoria has averaged more than half an inch of snow during April. But in most years April has no snow. Just one in every four years get a tenth of an inch of snow or more that late in spring.
The season's last snowfall more typically happens in March. For one out of four years, Peoria's last snowfall occurs as early as February.
Peoria is normally free of snow every year from May to September.
How Many Snowstorms Peoria Gets
Most days of snowfall in Peoria result in just a skiff of less than an inch left on the ground. On an average of eight days a year, at least an inch of snow lands in one day.
Snowstorms of over five inches a day don't normally occur every year, and when they do, they don't last long. Major blizzards that dump ten inches or more in one day are essentially unheard of here.
How Much Snow Normally Accumulates in Peoria
For less than half of winter days, Peoria has an inch or more of snow on the ground.
Snow mostly accumulates during January. Typically, on three days in January and another three in December, the snow covering Peoria gets to five or more inches deep. In some winters, the snowpack in January can build to ten inches or more.
National Climatic Data Center. NOAA's 1981-2010 Climate Normals.