2026 Compare Cities Climate:
Richardson, TX vs Ontario, CA

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Highlights
- Ontario has 61.0% less rainy days than Richardson.
- Ontario has 21.3% more Sunny Days than Richardson.
- On the BestPlaces comfort index, Ontario scores 23.9% better than Richardson
 Richardson, TXOntario, CAUnited States
 Rainfall  Unlock1638
 Snowfall1  Unlock28
 Precipitation  Unlock31106
 Sunny230  Unlock205
 Avg. July High  Unlock9286
 Avg. Jan. Low34  Unlock22
 Comfort Index (higher=better)  Unlock8.87
 UV Index5.7  Unlock4.3
 Elevation  Unlock10042443
Reviews for Richardson    6 Reviews

Over 15 years ago

Lived in Richardson for 40 years and it's home. Good schools, hospitals, emergency services, retail and restaurants. Fair weather and slightly high but reasonable cost  More

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Over 16 years ago

It's great to live in a neighborhood. Better yet a community. It is relatively quiet and peaceful. Having lived in the city (Dallas) for a number of years it was a  More

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Over 18 years ago

My wife and I have lived in Richardson for 4 years now. Richardson is like anywhere else in terms of it depends on what you are looking for. Richardson has a lot of  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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