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Chicago

City · Illinois, 🇺🇸 United States
Population 2,746,388
Area 606 km²
Time zone America/Chicago
Official website www.chicago.gov

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Climate & when to visit

Best time to visit: June, August, September

Select a month

Typical weather in January

Poor
  • 0° (feels like -7°) · extremes -19°–9°
  • -7° at night
  • 11 rainy days
  • 6 sunny days
  • 3 hours of sunshine per day
  • Dry air
  • Light breeze
  • 2°C · too cold to swim
  • UV index 1 · low

Typical weather in February

Poor
  • 1° (feels like -5°) · extremes -18°–11°
  • -6° at night
  • 9 rainy days
  • 9 sunny days
  • 5 hours of sunshine per day
  • Dry air
  • Light breeze
  • 1°C · too cold to swim
  • UV index 2 · low

Typical weather in March

Poor
  • 7° (feels like 1°) · extremes -10°–17°
  • -1° at night
  • 11 rainy days
  • 11 sunny days
  • 6 hours of sunshine per day
  • Dry air
  • Light breeze
  • 1°C · too cold to swim
  • UV index 3 · moderate

Typical weather in April

Poor
  • 12° (feels like 8°) · extremes -2°–22°
  • 5° at night
  • 12 rainy days
  • 11 sunny days
  • 7 hours of sunshine per day
  • Dry air
  • Light breeze
  • 4°C · too cold to swim
  • UV index 5 · moderate

Typical weather in May

Good
  • 19° (feels like 16°) · extremes 4°–27°
  • 11° at night
  • 13 rainy days
  • 11 sunny days
  • 7 hours of sunshine per day
  • Dry air
  • Light breeze
  • 8°C · too cold to swim
  • UV index 6 · high

Typical weather in June

Great
  • 25° (feels like 24°) · extremes 11°–31°
  • 17° at night
  • 12 rainy days
  • 12 sunny days
  • 9 hours of sunshine per day
  • Comfortable humidity
  • Light breeze
  • 15°C · too cold to swim
  • UV index 7 · high

Typical weather in July

Good
  • 27° (feels like 28°) · extremes 16°–33°
  • 20° at night
  • 12 rainy days
  • 13 sunny days
  • 9 hours of sunshine per day
  • Humid air
  • Light breeze
  • 21°C · cool for a dip
  • UV index 7 · high

Typical weather in August

Great
  • 26° (feels like 27°) · extremes 16°–32°
  • 20° at night
  • 11 rainy days
  • 13 sunny days
  • 8 hours of sunshine per day
  • Humid air
  • Light breeze
  • 22°C · cool for a dip
  • UV index 6 · high

Typical weather in September

Great
  • 23° (feels like 22°) · extremes 10°–30°
  • 16° at night
  • 9 rainy days
  • 14 sunny days
  • 7 hours of sunshine per day
  • Comfortable humidity
  • Light breeze
  • 20°C · cool for a dip
  • UV index 5 · moderate

Typical weather in October

Fair
  • 16° (feels like 12°) · extremes 3°–25°
  • 10° at night
  • 11 rainy days
  • 12 sunny days
  • 5 hours of sunshine per day
  • Dry air
  • Light breeze
  • 14°C · too cold to swim
  • UV index 3 · moderate

Typical weather in November

Poor
  • 9° (feels like 3°) · extremes -5°–18°
  • 3° at night
  • 9 rainy days
  • 9 sunny days
  • 4 hours of sunshine per day
  • Dry air
  • Light breeze
  • 9°C · too cold to swim
  • UV index 2 · low

Typical weather in December

Poor
  • 3° (feels like -3°) · extremes -14°–11°
  • -3° at night
  • 11 rainy days
  • 6 sunny days
  • 3 hours of sunshine per day
  • Dry air
  • Light breeze
  • 5°C · too cold to swim
  • UV index 1 · low

Climate data: NASA POWER + Copernicus ERA5-Land and ERA5 · 1996–2025

Practical information

Currency
US Dollar USD $ · Card payments · Widely accepted
Emergency numbers
911 Police · Ambulance · Fire brigade
Electricity
Type A / Type B
120 V · 60 Hz
Languages
English
Tap water
Safe to drink
Driving side
Right
Calling code
+1
Learn more

Tours & Activities

Navy Pier
Drive
Shedd Aquarium
Drive
Chicago Theatre

Chicago – Plan Your Days

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