Rancho Cucamonga, California 

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Climate in Rancho Cucamonga, California

Rancho Cucamonga, California gets 18 inches of rain, on average, per year. The US average is 39 inches of rain per year.

Rancho Cucamonga averages 4 inches of snow per year. The US average is 26 inches of snow per year.

On average, there are 287 sunny days per year in Rancho Cucamonga. The US average is 205 sunny days.

Summer High: the July high is around 91 degrees
Winter Low: the January low is 44

Sperling's Comfort Index for Rancho Cucamonga is a 86 out of 100
A higher score indicates a more comfortable year-round 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.


Rancho Cucamonga gets some kind of precipitation, on average, 28 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.


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  CLIMATERancho Cucamonga, CaliforniaUnited States
  Rainfall (in.)17.939.2
  Snowfall (in.)4.325.8
  Precipitation Days27.7102.0
  Sunny Days287205
  Avg. July High90.986.1
  Avg. Jan. Low43.522.6
  Comfort Index (higher=better)8654
  UV Index5.74.3
  Elevation ft.13891443
  • Annual Rainfall (US Avg: 36.5")
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    Reviews for Rancho Cucamonga    9 Reviews
    Childhood Home - 9/14/2013
    Of all the homes or places of where I lived throughout my lifetime, I especially remember Rancho Cucamunga, CA. But this city's name when I was there was Alta Loma, and... Read More

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    Healthy lifestyle if you find the champion on your - 4/11/2013
    Get up early and work. Dogs have a natural instinct to work, protect you( whoever harms anyone or animals spirit will pay a price) love you, loyalty, herd, play, pull... Read More

    A great place to live - 4/26/2011
    We have moved here three years ago from Memphis, TN and we love it. It is a beautiful place to live and raise a family. Low crime rate, housing is a bit costly but not... Read More

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