Climate in Sumas, Washington

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Climate

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Climate	Sumas, WA	United States
Rainfall (in.)	46.2	36.5
Snowfall (in.)	14.2	25
Precipitation Days	159	100
Sunny Days	155	205
Avg. July High	76	86.5
Avg. Jan. Low	30.7	20.5
Comfort Index (higher=better)	78	44
UV Index	2.5	4.3
Elevation ft.	62	1,060

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Sumas, WA, gets 46 inches of rain per year. The US average is 37. Snowfall is 14 inches. The average US city gets 25 inches of snow per year. The number of days with any measurable precipitation is 159.

On average, there are 155 sunny days per year in Sumas, WA. The July high is around 76 degrees. The January low is 31. Our comfort index, which is based on humidity during the hot months, is a 78 out of 100, where higher is more comfortable. The US average on the comfort index is 44.

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