Danbury Snowfall Totals & Accumulation Averages
This page pulls together information on when, how much and how often Danbury, Connecticut has snow.
There are data and descriptions here of how many days it snows and the total amount of snowfall that Danbury 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 Danbury can expect the first and last snowfalls of the season.
All the numbers are averages, based on weather data gathered in Danbury from 1991 to 2020.
How Often it Snows in Danbury
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 Danbury varies from year to year.
In December, for instance, one in four years totals over 12.9 inches of snow. Another 25 percent of years receive 1.6 inches or less for the month.
Similarly in January, fresh snowfall in the heaviest years amounts to 18.7 inches or more, while the lightest years get less than 5.7 inches.
New snow for February ranges from at least 14.5 inches in heavy snowfall years to 6.1 inches at most in light years.
When Danbury Has Its First & Last Snowfalls
The first snowfall of winter for Danbury in most years arrives in November. The rest of the time, snow usually holds off until December. In rare years, October also gets a little snow.
The season's last snowfall typically happens in April. Although every three or four years, April has no snow, which moves the last snowfall to March.
Danbury is normally free of snow every year from May to September.
How Many Snowstorms Danbury Gets
About half the days of snowfall in Danbury leave just a skiff, amounting to less than an inch, of fresh snow on the ground. For 12 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 annually. But major blizzards that dump ten inches or more in one day don't happen every year.
How Much Snow Normally Accumulates in Danbury
For close to half of winter days, Danbury has at least an inch of snow on the ground.
Typically on seven days a year, the snow covering Danbury gets to ten or more inches deep. On one or two of those days the snowpack builds up to twenty inches.
NOAA National Centers for Environmental Information (NCEI). Climate Normals.