Mercer County, New Jersey gets 48 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Mercer County averages 21 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 205 sunny days per year in Mercer County. The US average is 205 sunny days.
Mercer County gets some kind of precipitation, on average, 121 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.
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 21 inches of snow a year
BESTPLACES COMFORT INDEX
The annual BestPlaces Comfort Index for Mercer County is 7.2 (10=best), which means it is about average compared to other places in New Jersey.
7.2 / 10
September, June and May are the most pleasant months in Mercer County, while January and February are the least comfortable months.