Londonderry, NH has a humid continental climate with warm summers and cold winters. With its location in the Northern United States, the weather can range from hot to cold and dry to wet throughout the year. The average high during the summer months is around 84 degrees Fahrenheit with an average low of around 59 degrees. Winters are colder with average highs of 37 degrees and lows of 19 degrees. The area receives an average annual precipitation of 40 inches, most of which typically falls between late fall and early spring. Snowfall also occurs in Londonderry during the winter months, usually accumulating around 42 inches each season.
Londonderry, New Hampshire gets 46 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Londonderry averages 58 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 200 sunny days per year in Londonderry. The US average is 205 sunny days.
Londonderry gets some kind of precipitation, on average, 123 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 82 degrees
Winter Low: the January low is 14
Rain: averages 46 inches of rain a year
Snow: averages 58 inches of snow a year