2026 Compare Cities Climate:
Upland, CA vs Rancho Santa Margarita, CA

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Highlights
- Rancho Santa Margarita has 34.3% less rainy days than Upland.
- Rancho Santa Margarita has 3.5% less Sunny Days than Upland.
- On the BestPlaces comfort index, Rancho Santa Margarita scores 1.1% better than Upland
 Upland, CARancho Santa Margarita, CAUnited States
 Rainfall  Unlock1438
 Snowfall0  Unlock28
 Precipitation  Unlock36106
 Sunny289  Unlock205
 Avg. July High  Unlock8986
 Avg. Jan. Low43  Unlock22
 Comfort Index (higher=better)  Unlock8.97
 UV Index5.7  Unlock4.3
 Elevation  Unlock9322443
Reviews for Upland    7 Reviews

Over 12 years ago

Great city except during the summer months where it is getting increasingly  More

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I grew up in Upland at the tail end of the Citrus Industry. That's what basically defines the town. Greed corrupted things when City Council members in the 50's took  More

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Why I Think the Quality of Life is Good Here I have lived in this town since I was a little girl in the 60's, and have grown up here. Now 47, and never moved out  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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