Climate in Mercer County, Pennsylvania

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Climate	Mercer, PA	United States
Rainfall (in.)	39.2	36.5
Snowfall (in.)	38.6	25
Precipitation Days	145	100
Sunny Days	160	205
Avg. July High	84.2	86.5
Avg. Jan. Low	18	20.5
Comfort Index (higher=better)	49	44
UV Index	3.3	4.3
Elevation ft.	1,211	1,443

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Mercer County, PA, gets 39 inches of rain per year. The US average is 37. Snowfall is 39 inches. The average US city gets 25 inches of snow per year. The number of days with any measurable precipitation is 145.

On average, there are 160 sunny days per year in Mercer County, PA. The July high is around 84 degrees. The January low is 18. Our comfort index, which is based on humidity during the hot months, is a 49 out of 100, where higher is more comfortable. The US average on the comfort index is 44.

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