Castle Rock Weather in January

What's the weather like in Castle Rock (Colorado) in January 2025?

The climate in Castle Rock during January can be summarized as cold and dry.

January is in the winter in Castle Rock and is typically the coldest month of the year. Daytime maximum temperatures average around a freezing 6°C (44°F), whilst at night -10°C (14°F) is normal.

Castle Rock weather averages (imperial / metric)
Daytime temperature 6.4°C 43.5°F
Nightly temperature -10.2°C 13.6°F
Average temperature -1.9°C 28.6°F
Daily sunshine 7.8 hrs
Avg rainfall 12 mm 0.5 ins
Rainy days 6 days
Sea temperature 11°C 51.7°F
Humidity 54%
Windspeed 15.5kph 10 mph

On average January is the driest month of the year in Castle Rock with around 12mm 0.5 inches of rain making it a dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.8 hours of sunshine per day.

January temperatures in Castle Rock

Castle Rock average temperature in January

January rainfall

Castle Rock average rain in January

January hourly sunshine

Castle Rock average rain in January

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Castle Rock in January 2025.

Other monthly averages

Best places to visit in January

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Castle Rock weather stats

Castle Rock weather statistics
Hottest month: July 29.3°C 84.7°F
Driest month: January 12mm 0.5ins
Sunniest month: September 9.8hrs
Coldest month: January 6°C 42.8°F
Wettest month: May 64mm 2.5ins
Map showing location of Castle Rock (39.37221, -104.85609) Castle Rock map pin © Google

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