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Tucson, Arizona, gets 11 inches of rain per year. The US average is 37. Snowfall is 1 inches. The average US city gets 25 inches of snow per year. The number of days with any measurable precipitation is 48.

On average, there are 286 sunny days per year in Tucson, Arizona. The July high is around 100 degrees. The January low is 38. Our comfort index, which is based on humidity during the hot months, is a 45 out of 100, where higher is more comfortable. The US average on the comfort index is 44.

  CLIMATETucson, ArizonaUnited States
  Rainfall (in.)  11.236.5
  Snowfall (in.)  0.725
  Precipitation Days  48100
  Sunny Days  286205
  Avg. July High  10086.5
  Avg. Jan. Low  37.520.5
  Comfort Index (higher=better)  4544
  UV Index  6.54.3
  Elevation ft.  2,5121,443

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