Trenton, NJ has a humid subtropical climate. Winters are cold with average temperatures in the low to mid 30’s and summers are hot and humid with temperatures reaching the mid to high 80’s. The city experiences an average of 49 inches of rain each year as well as yearly snowfall ranging from 10 to 20 inches on average. In addition, Trenton experiences four distinct seasons throughout the year as well as frequent thunderstorms during the summer months.
Trenton, New Jersey gets 48 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Trenton averages 20 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 Trenton. The US average is 205 sunny days.
Trenton gets some kind of precipitation, on average, 120 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 85 degrees
Winter Low: the January low is 22
Rain: averages 48 inches of rain a year
Snow: averages 20 inches of snow a year