Portsmouth, RI has a mild climate throughout the year with temperatures rarely dropping below freezing in the winter or climbing above 85 degrees Fahrenheit in the summer. The area experiences all four seasons, with spring and fall being particularly enjoyable. Rainfall is fairly evenly distributed throughout the year, although summers are typically more humid than dry. Snowfall is also quite common during winter months, though it usually melts quickly due to warmer temperatures.
Portsmouth, Rhode Island gets 48 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Portsmouth averages 32 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 201 sunny days per year in Portsmouth. The US average is 205 sunny days.
Portsmouth gets some kind of precipitation, on average, 127 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 23
Rain: averages 48 inches of rain a year
Snow: averages 32 inches of snow a year