National Weather Service United States Department of Commerce

Heavy Snow from the Midwest into the Great Lakes; Locally Heavy Rain in the Western Gulf Coast

A significant winter storm will produce a broad area of moderate to heavy snow from the Midwest through the western Great Lakes. Significant snow accumulations of 6-12 inches, and locally more than 1 foot, and gusty wind may cause hazardous travel conditions. Thunderstorms, some severe, and showers may produce locally heavy rain and isolated flash flooding along the western Gulf Coast. Read More >

Rochester Snow Depth Climatology
 

One measure of  "winter harshness" is the number of days that snow remains on the ground. The graphs below show the number of days during each snow season that certain snow depths were measured. These depths are for the early morning hours (0700 EST). The year on the bottom axis is the later snow season year.  

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The average number of days for the past 76 winter seasons are: 

1 inch - 75.9 days       6 inches - 23.2 days     12 inches 5.8 days

ChartObject Number of days - 1 inch or more

ChartObject Number of days - 6 inches or more

ChartObject Number of days - 12 inches or more