2026 Compare Cities Climate:
Idaho City, ID vs Altadena, CA

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Highlights
- Altadena has 10.4% less rainy days than Idaho City.
- Altadena has 38.0% more Sunny Days than Idaho City.
- On the BestPlaces comfort index, Altadena scores 42.2% better than Idaho City
 Idaho City, IDAltadena, CAUnited States
 Rainfall  Unlock2338
 Snowfall92  Unlock28
 Precipitation  Unlock37106
 Sunny208  Unlock205
 Avg. July High  Unlock8686
 Avg. Jan. Low15  Unlock22
 Comfort Index (higher=better)  Unlock9.17
 UV Index4.1  Unlock4.3
 Elevation  Unlock13582443
Reviews for Idaho City    0 Reviews

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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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