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Kennewick, Washington, gets 8 inches of rain per year. The US average is 37. Snowfall is 7 inches. The average US city gets 25 inches of snow per year. The number of days with any measurable precipitation is 70.

On average, there are 191 sunny days per year in Kennewick, Washington. The July high is around 91 degrees. The January low is 27. Our comfort index, which is based on humidity during the hot months, is a 64 out of 100, where higher is more comfortable. The US average on the comfort index is 44.

  CLIMATEKennewick, WashingtonUnited States
  Rainfall (in.)  7.636.5
  Snowfall (in.)  6.625
  Precipitation Days  70100
  Sunny Days  191205
  Avg. July High  9186.5
  Avg. Jan. Low  26.920.5
  Comfort Index (higher=better)  6444
  UV Index  3.24.3
  Elevation ft.  5051,443

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