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Walla Walla, Washington, gets 17 inches of rain per year. The US average is 37. Snowfall is 19 inches. The average US city gets 25 inches of snow per year. The number of days with any measurable precipitation is 107.

On average, there are 188 sunny days per year in Walla Walla, Washington. The July high is around 89 degrees. The January low is 28. Our comfort index, which is based on humidity during the hot months, is a 67 out of 100, where higher is more comfortable. The US average on the comfort index is 44.

  CLIMATEWalla Walla, WashingtonUnited States
  Rainfall (in.)  16.636.5
  Snowfall (in.)  19.325
  Precipitation Days  107100
  Sunny Days  188205
  Avg. July High  8986.5
  Avg. Jan. Low  27.820.5
  Comfort Index (higher=better)  6744
  UV Index  3.24.3
  Elevation ft.  9851,443

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