2026 Compare Cities Climate:
Diamond Bar, CA vs Rancho Santa Margarita, CA

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Highlights
- Rancho Santa Margarita has 26.6% less rainy days than Diamond Bar.
- Rancho Santa Margarita has 2.4% less Sunny Days than Diamond Bar.
- On the BestPlaces comfort index, Rancho Santa Margarita scores 1.1% better than Diamond Bar
 Diamond Bar, CARancho Santa Margarita, CAUnited States
 Rainfall  Unlock1438
 Snowfall0  Unlock28
 Precipitation  Unlock36106
 Sunny286  Unlock205
 Avg. July High  Unlock8986
 Avg. Jan. Low43  Unlock22
 Comfort Index (higher=better)  Unlock8.97
 UV Index6.2  Unlock4.3
 Elevation  Unlock9322443
Reviews for Diamond Bar    3 Reviews

Over 15 years ago

Beautiful city and great place to raise a family. The worst part of Diamond Bar would be some of the best places to live in other cities. Diamond Bar has some of the  More

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Over 15 years ago

The city is centrally located to riverside, San Bernardino, Orange County and Downtown La. It is very scenic with beautiful hills, great schools and within easy reach,  More

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Over 16 years ago

This is a very quiet area about 30 mile east of downtown Los Angeles. I'm a bit concerned about what effect a possible new NFL stadium in the City of Industry CA will  More

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Reviews for Rancho Santa Margarita    13 Reviews

This page provides little information on RSM. I see they keep describing the area as "outside of Los Angeles." Culturally, it is so far from Los Angeles (I lived in LA,  More

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Over 11 years ago

The weather here is amazing. We get a few hot days in the summer but it cools down in the evening. I love being able to sleep with the windows  More

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This is the best place to live in South Orange County with mild temperatures, low crime, great schools and family orientated. RSM is a city that sits in a pocket backing  More

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