2025 Compare Cities Climate:
Altadena, CA vs Union City, CA

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Highlights
- Union City has 26.2% less rainy days than Altadena.
- Union City has 7.7% less Sunny Days than Altadena.
- On the BestPlaces comfort index, Union City scores 3.3% worse than Altadena
 Altadena, CAUnion City, CAUnited States
 Rainfall  Unlock1738
 Snowfall0  Unlock28
 Precipitation  Unlock64106
 Sunny287  Unlock205
 Avg. July High  Unlock7686
 Avg. Jan. Low47  Unlock22
 Comfort Index (higher=better)  Unlock8.87
 UV Index6.2  Unlock4.3
 Elevation  Unlock662443
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 Union City    1 Reviews

Over 19 years ago

Hi, I am looking for a small, friendly town with low crime and friendly people, outdoor activites, mellow, etc. (in the bay area). I am currently hoping to move to  More

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