03753 Grantham, NH has a moderate climate. The average summer temperature is around 73°F, while the winter temperatures drop to an average of 24°F. Precipitation in Grantham is fairly evenly distributed throughout the year, with around 45 inches of rain and snowfall annually. Winters are cold and snowy, while summers are warm and humid. Spring and autumn offer mild weather between the two extremes. The area generally experiences all four seasons with distinct changes in temperature and precipitation levels from season to season.
Grantham (zip 03753), New Hampshire gets 47 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Grantham (zip 03753) averages 71 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 Grantham (zip 03753). The US average is 205 sunny days.
Grantham (zip 03753) gets some kind of precipitation, on average, 132 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 79 degrees
Winter Low: the January low is 8
Rain: averages 47 inches of rain a year
Snow: averages 71 inches of snow a year