Dunellen, NJ has a humid continental climate, with warm summers and cold winters. The average temperature in the summer months is around 75°F (24°C), while winter temperatures tend to stay around 30°F (-1°C). Precipitation is fairly consistent throughout the year, averaging 41 inches (104 cm) annually. Snowfall varies from year to year but averages around 19 inches (48 cm). Humidity levels are usually high, reaching up to 80% or more in the summertime.
Dunellen, New Jersey gets 48 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Dunellen averages 23 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 204 sunny days per year in Dunellen. The US average is 205 sunny days.
Dunellen gets some kind of precipitation, on average, 117 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 86 degrees
Winter Low: the January low is 22
Rain: averages 48 inches of rain a year
Snow: averages 23 inches of snow a year