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

Chicago Weather in December

Plan your December trip to Chicago, United States. Based on 30 years of NASA data, expect temperatures of 2°C (high) to -3°C (low), with 19% rain probability and 8 hours of daily sunshine. Great conditions with only 1 rainy days expected.

Avg High
2°C

Hottest around day 1

Avg Low
-3°C

Coolest around day 24

Rainy Days
1days

19% avg rain chance

Sunshine
8hrs/day

Winter season

Chicago December 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 December a Good Time to Visit Chicago?

👌Worthwhile timing with some trade-offs
Short Answer

Bundle up for Chicago in December: temperatures hover around 2°C during the day and drop to -3°C at night. Just 19% rain probability but bring winter layers.

Decision Factors

Cold weather expected

2.4°C average highs

Wind chill makes it feel colder

Feels like -3°C with 24.5km/h wind

Peak tourist season

87% of annual peak - expect crowds and high prices

Exceptional dining scene

105 Michelin-listed restaurants

Good For

  • 🏛️
    Cultural tourists

    Comfortable conditions for exploring museums and sites

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

Who Should Avoid

  • 💰
    Budget travelers

    Peak season means premium prices everywhere

  • 👴
    Elderly travelers

    75% humidity creates difficult conditions

  • 💑
    Honeymoon couples

    Wedding score only 23/100 - 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 December averages 2°C with 19% precipitation probability."

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

Frequently Asked Questions: Chicago in December

What are the temperatures in Chicago in December?

Daytime highs average 2°C, nights drop to -3°C. Temperatures remain fairly consistent.

How many rainy days in Chicago in December?

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

What to wear in Chicago in December?

Warm winter clothing: insulated jacket, boots, gloves.

Is December peak season in Chicago?

This is shoulder season—moderate prices and manageable crowds.