2025 Compare Cities Climate:
Riverside, CA vs Ontario, CA

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Highlights
- Ontario has 38.9% more rainy days than Riverside.
- Ontario has 0.7% more Sunny Days than Riverside.
- On the BestPlaces comfort index, Ontario scores 1.1% better than Riverside
 Riverside, CAOntario, CAUnited States
 Rainfall  Unlock1638
 Snowfall0  Unlock28
 Precipitation  Unlock31106
 Sunny277  Unlock205
 Avg. July High  Unlock9286
 Avg. Jan. Low42  Unlock22
 Comfort Index (higher=better)  Unlock8.87
 UV Index5.7  Unlock4.3
 Elevation  Unlock10042443
Reviews for Riverside    42 Reviews

I've lived in Riverside for 54 years. It changed a LOT when people from LA started moving here in droves. Still, I have never been robbed or assaulted but I am  More

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I'm from Orange County (OC). I have had nothing but trouble since moving to Riverside. 1. The dogs are aggressive guard dogs. If you want to walk or bike you  More

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Over 7 years ago

Whew where to begin with dear old riverside. I enjoyed growing up here until my high school years (back in 2011). In 7 short years the downward deterioration of the  More

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Reviews for Ontario    6 Reviews

We've lived in this area for several years. Traveling long distances to other cities for churches. Passing a quiet, unassuming church along the way for years. Until  More

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cool  More

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I think Ontario,ca us awesome because we have an entertainment Venue and large shopping mall to please everyone of all  More

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