2025 Compare Cities Climate:
Altadena, CA vs Rockville, MD

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Highlights
- Rockville has 87.6% more rainy days than Altadena.
- Rockville has 29.3% less Sunny Days than Altadena.
- On the BestPlaces comfort index, Rockville scores 18.7% worse than Altadena
 Altadena, CARockville, MDUnited States
 Rainfall  Unlock4238
 Snowfall0  Unlock28
 Precipitation  Unlock112106
 Sunny287  Unlock205
 Avg. July High  Unlock8586
 Avg. Jan. Low47  Unlock22
 Comfort Index (higher=better)  Unlock7.47
 UV Index6.2  Unlock4.3
 Elevation  Unlock4562443
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

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Reviews for Rockville    17 Reviews

From MY PERSONAL EXPERIENCE to many other people's comments and experiences: - The DC Metropolitan area (Maryland, DC, and Virginia) have an intense white supremacy /  More

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Having practically grown up here, it is fair to think I am biased. Before making assumptions about my opinion, though, I've lived in multiple cities in these states -  More

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Over 10 years ago

No comment at this  More

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