30YearWeather
Packing for Chicago
2026 Packing Guide

What to Wear in Chicago in December

Your complete weather-based packing list derived from 30 years of historical climate data.

December Weather in Chicago at a Glance

Avg High

2°C

Avg Low

-3°C

Rain Risk

19%

💡 Quick Tip:

Heavy winter coat, thermal layers, gloves, scarf, and warm boots. Rain is unlikely, but a small umbrella never hurts.

Weekly Packing Breakdown for Chicago

Week 1Days 1-7
-2° - 3°
18% Rain

Heavy winter coat, thermal layers, gloves, scarf, and warm boots.

Week 2Days 8-15
-3° - 3°
20% Rain

Heavy winter coat, thermal layers, gloves, scarf, and warm boots.

Week 3Days 16-23
-4° - 2°
16% Rain

Heavy winter coat, thermal layers, gloves, scarf, and warm boots.

Week 4Days 24+
-4° - 2°
22% Rain

Heavy winter coat, thermal layers, gloves, scarf, and warm boots.

Essential Packing List for Chicago in December

Don't leave home without these essentials.

Top Layers

  • Long-sleeve shirts / Base layers
  • Warm Sweater / Fleece
  • Heavy Winter Coat

Bottoms & Shoes

  • Jeans / Heavy Trousers
  • Comfortable Walking Shoes
  • Socks (Wool/Thermal)

Accessories

  • Scarf & Gloves
  • Beanie / Hat

Common Questions about Chicago Weather in December

What is the weather like in Chicago in December?

It is cold with average highs of only 2°C. Nights average around -3°C.

Do I need a heavy coat?

Yes, definitely. Temperatures often drop near freezing, so a warm winter coat is essential.

Does it rain often in Chicago in December?

Rain is relatively rare (19% chance), but a small umbrella is always good to have.

What shoes should I take to Chicago?

Comfortable walking shoes are the most important item. Sneakers or loafers are perfect.

Can I wear shorts / short sleeves?

No, it's generally too cool. Stick to long pants and layers.