30YearWeather
Chicago in January
Chicago weather in January - United States
❄️Cool & Crisp

Chicago Weather in January

Plan your January trip to Chicago, United States. Based on 30 years of NASA data, expect temperatures of -1°C (high) to -7°C (low), with 19% rain probability and 8 hours of daily sunshine. Great conditions with only 1 rainy days expected.

Avg High
-1°C

Hottest around day 1

Avg Low
-7°C

Coolest around day 20

Rainy Days
1days

19% avg rain chance

Sunshine
8hrs/day

Winter season

Chicago January Weather Calendar

Click any day to see detailed weather information

Currency

USD

$ United States dollar

Language

English

Driving

Right side

Connect

The first Internet café in the United St...

Safety

Moderate Safety

GPI: 2.44

Travel Intelligence

Exclusive flight analytics & health data for Chicago

Smart Flight Estimator

Airport-to-Airport Logistics

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Add your home location in settings to see airport details.

Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Major Hub
100/ 100
Traffic Index

Extremely busy airport

Peak Daily Arrivals

0

slots per day

Peak

Jun

Low

Jan

Monthly Traffic Distribution

1055
Jan
1174
Feb
1315
Mar
1276
Apr
1351
May
1367
Jun
1256
Jul
1331
Aug
1314
Sep
1222
Oct
1139
Nov
1185
Dec
Traffic Level
Low Season

Key Connections

New York La Guardia (LGA)
Dallas-Fort Worth (DFW)
Boston General Edward Lawrence Logan (BOS)
Washington Ronald Reagan National (DCA)
Newark Liberty (EWR)

Health & Safety Advisory

CDC travel health recommendations

No Requirements

No Special Vaccinations Required

Standard travel precautions apply

Source: CDC Travelers' Health

View Complete Health Guide

Is January a Good Time to Visit Chicago?

👌Worthwhile timing with some trade-offs
Short Answer

Cold but characterful January in Chicago: -1°C daytime temperatures, fewer crowds, and January-specific atmosphere. Not for sun-seekers, but ideal for cozy indoor experiences.

Decision Factors

Freezing temperatures

-0.8°C highs - pack warm winter gear

Wind chill makes it feel colder

Feels like -7°C with 25km/h wind

Shoulder season - balanced conditions

77% of peak - good value with moderate crowds

Exceptional dining scene

105 Michelin-listed restaurants

Good For

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

Who Should Avoid

  • 👨‍👩‍👧‍👦
    Families with children

    -7°C too cold for comfortable family activities

  • 👴
    Elderly travelers

    75% humidity creates difficult conditions

  • 💑
    Honeymoon couples

    Wedding score only 4/100 - better months available

930 observations30-year historical data
Confidence: 95%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Chicago in January averages -1°C with 19% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: Chicago in January

What are the temperatures in Chicago in January?

Daytime highs average -1°C, nights drop to -7°C. Temperatures remain fairly consistent.

How many rainy days in Chicago in January?

Expect around 1 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Chicago in January?

Warm winter clothing: insulated jacket, boots, gloves.

Is January peak season in Chicago?

This is shoulder season—moderate prices and manageable crowds.