2025 Compare Cities Climate:
Littleton, NH vs Altadena, CA

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Highlights
- Altadena has 41.4% less rainy days than Littleton.
- Altadena has 47.9% more Sunny Days than Littleton.
- On the BestPlaces comfort index, Altadena scores 54.2% better than Littleton
 Littleton, NHAltadena, CAUnited States
 Rainfall  Unlock2338
 Snowfall81  Unlock28
 Precipitation  Unlock37106
 Sunny194  Unlock205
 Avg. July High  Unlock8686
 Avg. Jan. Low3  Unlock22
 Comfort Index (higher=better)  Unlock9.17
 UV Index3.1  Unlock4.3
 Elevation  Unlock13582443
Reviews for Littleton    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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