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Weather in Cook County for January 2025

Your guide to Cook County weather in January - trends and predictions
  • In general, the average temperature in Cook County at the beginning of January is 4 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 1 °F by the end of January.

  • Cook County sees moderate rainfall in January, averaging 10 rainy days.

  • Snowfall in Cook County during January is quite rare, with fewer than 2 snowy days on average.

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Average dry days
20
Dry days
Average rainy days
10
Rainy days
Average snowy days
1
Snow days
Average temperatures
4°/-7°
Temperatures
Average wind speed
22 km/h
Avg max wind
Average humidity
82 %
Avg humidity

Cook County in January average weather

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Temperatures trend during January in Cook County

See the weather trend as well as the moving average line

January weather day by day

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Date Weather Temperatures Rain Snow More
Jan. 1 Overcast
Overcast
5° /1° 3.4 mm 0.5 cm
Jan. 2 Overcast
Overcast
5° /1° 0.1 mm 0 cm
Jan. 3 Moderate or heavy rain shower
Moderate or heavy rain shower
7° /3° 8.3 mm 0.3 cm
Jan. 4 Overcast
Overcast
5° /1° 0.1 mm 0 cm
Jan. 5 Light freezing rain
Light freezing rain
2° /0° 0.7 mm 0 cm
Jan. 6 Overcast
Overcast
1° /0° 1.7 mm 1.4 cm
Jan. 7 Partly cloudy
Partly cloudy
3° /0° 0.2 mm 0.1 cm
Jan. 8 Overcast
Overcast
2° /0° 0.4 mm 0.3 cm
Jan. 9 Sunny
Sunny
4° /-1° 10 mm 4 cm
Jan. 10 Overcast
Overcast
4° /0° 0.5 mm 0.1 cm
Jan. 11 Overcast
Overcast
4° /0° 0.8 mm 0.7 cm
Jan. 12 Overcast
Overcast
3° /0° 14 mm 5.2 cm
Jan. 13 Overcast
Overcast
1° /-7° 2.9 mm 0 cm
Jan. 14 Sunny
Sunny
-5° /-10° 0.2 mm 0 cm
Jan. 15 Partly cloudy
Partly cloudy
-4° /-11° 0 mm 0 cm
Jan. 16 Heavy rain at times
Heavy rain at times
-3° /-9° 3.3 mm 0 cm
Jan. 17 Patchy rain possible
Patchy rain possible
0° /-6° 0.2 mm 0 cm
Jan. 18 Patchy rain possible
Patchy rain possible
-1° /-4° 2.8 mm 0.4 cm
Jan. 19 Moderate rain at times
Moderate rain at times
-2° /-6° 5.3 mm 1 cm
Jan. 20 Overcast
Overcast
-3° /-8° 0.1 mm 0.1 cm
Jan. 21 Partly cloudy
Partly cloudy
-2° /-9° 0.1 mm 0 cm
Jan. 22 Light freezing rain
Light freezing rain
1° /-3° 3 mm 0.2 cm
Jan. 23 Overcast
Overcast
2° /-1° 7.2 mm 0 cm
Jan. 24 Overcast
Overcast
2° /0° 4 mm 0 cm
Jan. 25 Patchy moderate snow
Patchy moderate snow
2° /0° 9 mm 0.3 cm
Jan. 26 Light freezing rain
Light freezing rain
1° /-2° 3.7 mm 0 cm
Jan. 27 Light freezing rain
Light freezing rain
2° /-2° 0.9 mm 0 cm
Jan. 28 Patchy moderate snow
Patchy moderate snow
1° /-2° 3.2 mm 0.9 cm
Jan. 29 Overcast
Overcast
3° /-4° 0.9 mm 0.3 cm
Jan. 30 Overcast
Overcast
-2° /-6° 1.2 mm 0.1 cm
Jan. 31 Overcast
Overcast
0° /-7° 0 mm 0 cm
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Important Notice
Our weather forecast for Cook County in January is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Cook County forecast closer to your planned date for the most up-to-date weather information.

Cook County in January - FAQ

What are the expected maximum and minimum temperatures in Cook County during January?
Brace for cold days with temperatures not exceeding 4° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Cook County during January?
Significant rainfall exceeding 176.1 mm is expected in Cook County during January, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
Is snowfall common in Cook County during January?
Cook County experiences an average snowfall of 31.6 cm during January, occurring over 1 days, which may interest winter sports enthusiasts.
What are the typical wind conditions in Cook County during January?
The average wind speed in Cook County during January is 22 km/h, suggesting breezy to windy conditions, depending on your activities.

January rainfall patterns in Cook County

Explore the daily rainfall trends and prepare for Cook Countys January weather 💧

January snowfall in Cook County

Track daily snowfall levels and discover Cook County’s snowy potential this January ❄️
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Location coordinates Where is Cook County?

Get accurate weather forecasts for Cook County, located at latitude 41.85 and longitude -87.65. Stay updated with localized weather information tailored for Cook County.

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