2025 Compare Cities Climate:
Diamond Bar, CA vs Altadena, CA

Change Cities
Highlights
- Altadena has 19.7% more rainy days than Diamond Bar.
- Altadena has 0.3% more Sunny Days than Diamond Bar.
- On the BestPlaces comfort index, Altadena scores 3.4% better than Diamond Bar
 Diamond Bar, CAAltadena, CAUnited States
 Rainfall  Unlock2338
 Snowfall0  Unlock28
 Precipitation  Unlock37106
 Sunny286  Unlock205
 Avg. July High  Unlock8686
 Avg. Jan. Low43  Unlock22
 Comfort Index (higher=better)  Unlock9.17
 UV Index6.2  Unlock4.3
 Elevation  Unlock13582443
Reviews for Diamond Bar    3 Reviews

Over 14 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

   |    Reply

Over 14 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

   |    Reply

Over 15 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

   |    Reply

Start Your Review of Diamond Bar

Reviews for Altadena    1 Reviews

I live just above the 1500 foot elevation at the edge of the San Gabriel Mountains in the L.A. suburb of Altadena--just above Pasadena. We're above the low morning fog  More

   |    Reply

Start Your Review of Altadena


Premium Subscription
Includes Cost of Living compares for child care, utilities, transportation, health, taxes, housing for home owners vs renters, weather, insurance premiums and so much more.


The premier source for comprehensive city data for over 30 years.

© Best Places. All rights reserved.