The climate in 02633 Chatham, MA is typical of the New England region; mild summers and chilly winters with plenty of precipitation throughout the year. Summers average in the mid to high 70s Fahrenheit and rarely exceed 80 degrees, while winter temperatures typically hover around 20-30 degrees Fahrenheit. The area has an annual precipitation rate of about 45 inches, with snowfall averaging about 40 inches per season. Chatham experiences an abundance of sunshine, with over 200 days of clear skies every year. The town is known for its ocean breezes during summer months that help keep things cool even on the hottest days.
Chatham (zip 02633), Massachusetts gets 48 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Chatham (zip 02633) averages 23 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 Chatham (zip 02633). The US average is 205 sunny days.
Chatham (zip 02633) gets some kind of precipitation, on average, 109 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 78 degrees
Winter Low: the January low is 23
Rain: averages 48 inches of rain a year
Snow: averages 23 inches of snow a year