Hillsborough County, New Hampshire is known for its varied climate. In the summer months the temperature is typically quite warm with average highs in the low to mid 80s Fahrenheit and humidity levels that can make it feel even hotter. During the fall and winter, temperatures drop significantly as cool air moves in from Canada. Average lows for winter can dip below zero Fahrenheit and snowfall averages about 70 inches per year. The spring season brings warmer temperatures back to the county, with average high temperatures in the upper 50s Fahrenheit. Overall, Hillsborough has a humid continental climate with four distinct seasons.
Hillsborough County, New Hampshire gets 47 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Hillsborough County averages 64 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 199 sunny days per year in Hillsborough County. The US average is 205 sunny days.
Hillsborough County gets some kind of precipitation, on average, 126 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 81 degrees
Winter Low: the January low is 13
Rain: averages 47 inches of rain a year
Snow: averages 64 inches of snow a year