Grand Isle, VT County has a humid continental climate with warm summers and cold winters. On average, the area receives around 35 inches of precipitation per year, mostly in the form of rain and snowfall. The area experiences an average of 166 sunny days per year, and average winter temperatures can range from 10 to 20 degrees Fahrenheit. Additionally, the area is known for very strong winds due to its proximity to Lake Champlain. In Grand Isle, summer temperatures usually reach into the mid-80s (°F), whereas during the winter months, temperatures will dip into the single digits (°F). Overall, Grand Isle has a moderate climate that is pleasant and comfortable most of the year.
Grand Isle County, Vermont gets 34 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Grand Isle County averages 63 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 159 sunny days per year in Grand Isle County. The US average is 205 sunny days.
Grand Isle County gets some kind of precipitation, on average, 135 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 80 degrees
Winter Low: the January low is 9
Rain: averages 34 inches of rain a year
Snow: averages 63 inches of snow a year