Crystal Lake Weather in December

What's the weather like in Crystal Lake (Illinois) in December 2024?

The climate in Crystal Lake during December can be summarized as cold and reasonably dry.

December is in the winter in Crystal Lake and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a freezing 0°C (33°F), whilst at night -9°C (17°F) is normal.

Crystal Lake weather averages (imperial / metric)
Daytime temperature 0.4°C 32.7°F
Nightly temperature -8.6°C 16.5°F
Average temperature -4.1°C 24.6°F
Daily sunshine 3.9 hrs
Avg rainfall 57 mm 2.3 ins
Rainy days 11 days
Sea temperature 5.9°C 42.6°F
Humidity 77%
Windspeed 19.1kph 12 mph

On average December is the 3rd driest month of the year in Crystal Lake with around 57mm 2.3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.

On the flip side this corresponds to an average of 3.9 hours of sunshine per day.

December temperatures in Crystal Lake

Crystal Lake average temperature in December

December rainfall

Crystal Lake average rain in December

December hourly sunshine

Crystal Lake average rain in December

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 Crystal Lake in December 2024.

Other monthly averages

Best places to visit in December

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Crystal Lake weather stats

Crystal Lake weather statistics
Hottest month: July 28.2°C 82.8°F
Driest month: February 32mm 1.3ins
Sunniest month: July 10.9hrs
Coldest month: January -2.7°C 27.1°F
Wettest month: June 102mm 4ins
Map showing location of Crystal Lake (42.24113, -88.3162) Crystal Lake map pin © Google

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