Crystal Lake Weather in January

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

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

January is in the winter in Crystal Lake and is typically the coldest month of the year. Daytime maximum temperatures average around a freezing -3°C (28°F), whilst at night -12°C (10°F) is normal.

Crystal Lake weather averages (imperial / metric)
Daytime temperature -2.5°C 27.5°F
Nightly temperature -12.3°C 9.9°F
Average temperature -7.4°C 18.7°F
Daily sunshine 5 hrs
Avg rainfall 40 mm 1.6 ins
Rainy days 11 days
Sea temperature 4.3°C 39.8°F
Humidity 73%
Windspeed 19.8kph 12 mph

On average January is the 2nd driest month of the year in Crystal Lake with around 40mm 1.6 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 5 hours of sunshine per day.

January temperatures in Crystal Lake

Crystal Lake average temperature in January

January rainfall

Crystal Lake average rain in January

January hourly sunshine

Crystal Lake 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 Crystal Lake in January 2024.

Other monthly averages

Best places to visit in January

UV index Best time to go?

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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