2025 Compare Cities Climate:
Boulder, CO vs New Castle, CO

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Highlights
- New Castle has 17.1% less rainy days than Boulder.
- New Castle has 2.4% less Sunny Days than Boulder.
- On the BestPlaces comfort index, New Castle scores 2.8% worse than Boulder
 Boulder, CONew Castle, COUnited States
 Rainfall  Unlock1538
 Snowfall71  Unlock28
 Precipitation  Unlock94106
 Sunny245  Unlock205
 Avg. July High  Unlock9086
 Avg. Jan. Low19  Unlock22
 Comfort Index (higher=better)  Unlock6.97
 UV Index5.8  Unlock4.3
 Elevation  Unlock55972443
Reviews for Boulder    55 Reviews

Outside of the university, Boulder had a very distinctive "wealthy hippy" feel. A lot of alternative medicine and a matching ethos. This is changing some among my  More

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We moved here from Texas about 4 years ago and love it here! The amazing sense of community and high regard for the environment are two of the main reasons we love  More

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Over 5 years ago

Most people do much worse than Boulder. I'm the most critical person I've ever met who is never happy or satisfied -- so that's a pretty huge compliment.   More

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Reviews for New Castle    3 Reviews

Over 11 years ago

Small town  More

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Over 12 years ago

Been here about 1 1/2 years. Climate is great, lots of snow in winter, mild summers but still hits triple digits though:/ Work is hard to come by unless you are in the  More

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New Castle is a small town outside of Glenwood Springs. We have beautiful weather, gorgeous mountains but it is very expensive to live here... I think the cost of  More

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