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Grass Valley, California, gets 53 inches of rain per year. The US average is 39. Snowfall is 11 inches. The average US city gets 26 inches of snow per year. The number of days with any measurable precipitation is 60.

On average, there are 243 sunny days per year in Grass Valley, California. The July high is around 90 degrees. The January low is 35. Sperling's comfort index for Grass Valley is a 79 out of 100, where a higher score indicates a more comfortable year-around climate. The US average for the comfort index is 54. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.

  CLIMATEGrass Valley, CaliforniaUnited States
  Rainfall (in.)  52.802639.2
  Snowfall (in.)  10.722725.8
  Precipitation Days  60.15102
  Sunny Days  243205
  Avg. July High  89.7886.1
  Avg. Jan. Low  34.71722.6
  Comfort Index (higher=better)  7954
  UV Index  54.3
  Elevation ft.  2,5251,443

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Reviews for Grass Valley

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The Decline of Grass Valley

I'm 25 years old and I've lived in this town all of my life, and I'm saving every single dollar I make to leave here and never come back. It's a shame, because at one... (Read More)



Not a good place for families

Once upon a time this was a nice town where people talked about not locking their doors, asked their neighbor to borrow some eggs and didn't have a lot of break ins. ... (Read More)



What's not to like?

The Good: Swimming, fishing, rafting, kayaking (lake or stream), hunting, local farmers markets, off roading, kids sports, some the very best schools in California,... (Read More)



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