DeKalb Weather in January

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

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

January is in the winter in DeKalb and is typically the coldest month of the year. Daytime maximum temperatures average around a freezing -3°C (28°F), whilst at night -13°C (10°F) is normal.

DeKalb weather averages (imperial / metric)
Daytime temperature -2.5°C 27.5°F
Nightly temperature -12.5°C 9.5°F
Average temperature -7.5°C 18.5°F
Daily sunshine 5.1 hrs
Avg rainfall 37 mm 1.4 ins
Rainy days 10 days
Sea temperature 5.7°C 42.2°F
Humidity 74%
Windspeed 19.1kph 12 mph

On average January is the 2nd driest month of the year in DeKalb with around 37mm 1.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.1 hours of sunshine per day.

January temperatures in DeKalb

DeKalb average temperature in January

January rainfall

DeKalb average rain in January

January hourly sunshine

DeKalb 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 DeKalb in January 2024.

Other monthly averages

Best places to visit in January

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

DeKalb weather stats

DeKalb weather statistics
Hottest month: July 28.7°C 83.7°F
Driest month: February 30mm 1.2ins
Sunniest month: July 10.8hrs
Coldest month: January -2.7°C 27.1°F
Wettest month: June 110mm 4.3ins
Map showing location of DeKalb (41.92947, -88.75036) DeKalb map pin © Google

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