2026 Compare Cities Climate:
Castaic, CA vs Post Falls, ID

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Highlights
- Post Falls has 21.7% more rainy days than Castaic.
- Post Falls has 38.5% less Sunny Days than Castaic.
- On the BestPlaces comfort index, Post Falls scores 23.6% worse than Castaic
 Castaic, CAPost Falls, IDUnited States
 Rainfall  Unlock2238
 Snowfall0  Unlock28
 Precipitation  Unlock118106
 Sunny283  Unlock205
 Avg. July High  Unlock8386
 Avg. Jan. Low46  Unlock22
 Comfort Index (higher=better)  Unlock6.87
 UV Index6.2  Unlock4.3
 Elevation  Unlock21822443
Reviews for Castaic    3 Reviews

Over 10 years ago

I've lived in northern Castaic for 14 years so this review is for northern Castaic Pros: convenient freeway access, boating on Lake Castaic, lots of gas stations,  More

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Over 12 years ago

Formerly a "truck stop" town, Castaic is the last town before going over the Grapevine, heading North on I-5 towards San Francisco. The town is unincorporated and sits  More

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Over 13 years ago

I currently live in Valencia. Before I consider purchasing a house in Castaic off Lake Hughes Rd and closer to the lake, is it safe to live in this neighborhood? Any  More

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Reviews for Post Falls    6 Reviews

In moving here I knew about the snow. Not a matter of if but how much. What I didn't know was how windy it gets and how often. I also didn't know about the dust. It's  More

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Over 7 years ago

Moved here from Seattle in 2018. Even though the population is under 40,000 it doesn't feel like small town Mayberry. The biggest mistake I see happening is the building  More

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Post Falls had great potential; too bad the city planning committee blew it! It's such a disorganized bunch of housing communities built just what looks like where ever  More

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