Climate in Chelmsford, Massachusetts

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Climate

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Climate	Chelmsford, MA	United States
Rainfall (in.)	42.2	36.5
Snowfall (in.)	50	25
Precipitation Days	114	100
Sunny Days	201	205
Avg. July High	85	86.5
Avg. Jan. Low	16.9	20.5
Comfort Index (higher=better)	48	44
UV Index	3.5	4.3
Elevation ft.	105	1,060

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Chelmsford, MA, gets 42 inches of rain per year. The US average is 37. Snowfall is 50 inches. The average US city gets 25 inches of snow per year. The number of days with any measurable precipitation is 114.

On average, there are 201 sunny days per year in Chelmsford, MA. The July high is around 85 degrees. The January low is 17. Our comfort index, which is based on humidity during the hot months, is a 48 out of 100, where higher is more comfortable. The US average on the comfort index is 44.

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