2025 Compare Cities Climate:
Hayward, CA vs Carol Stream, IL

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Highlights
- Carol Stream has 110.6% more rainy days than Hayward.
- Carol Stream has 27.2% less Sunny Days than Hayward.
- On the BestPlaces comfort index, Carol Stream scores 21.8% worse than Hayward
 Hayward, CACarol Stream, ILUnited States
 Rainfall  Unlock3838
 Snowfall0  Unlock28
 Precipitation  Unlock119106
 Sunny257  Unlock205
 Avg. July High  Unlock8586
 Avg. Jan. Low42  Unlock22
 Comfort Index (higher=better)  Unlock6.87
 UV Index5.4  Unlock4.3
 Elevation  Unlock7582443
Reviews for Hayward    4 Reviews

I've lived in Hayward for 20 years. Traditionally a working  More

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Hetchy Hechy water is very pure,the summers are about 78f..warm enough. Winters are sunny for the most part and by average.One University and one College in this small  More

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Over 11 years ago

convenient BART and bus if you have no  More

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Reviews for Carol Stream    1 Reviews

Great place to live and raise a family but, taxes are high. The winters are very  More

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