🇺🇸 Chicago vs 🇺🇸 Seattle

Weather Comparison

Current Weather Right Now

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Chicago

few clouds

50°F

Few Clouds

Feels like 44°F

H 51°F / L 48°F

Humidity: 47%

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Seattle

clear sky

57°F

Clear Sky

Feels like 56°F

H 60°F / L 54°F

Humidity: 71%

Climate Overview

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Chicago

Humid continental — cold harsh winters, hot humid summers, severe storms

Best monthsMay, June, September
AvoidJanuary, February, March (brutal cold)
Annual rain38 inches (965 mm)

Chicago lives up to its Windy City nickname. Lake Michigan creates its own microclimate — cooler summers and heavier lake-effect snow in winter. Summers are warm but brief; winters are among the harshest of any major American city.

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Seattle

Seattle's climate is defined by the Puget Sound, the Olympic Mountains to the west, and the Cascades to the east. The rain shadow effect of the Olympics makes Seattle significantly drier than the Washington coast. Summers are glorious (July averages less rainfall than Miami); winters are grey and drizzly but rarely brutal.

Seasonal Comparison

Season🇺🇸 Chicago🇺🇸 Seattle
Spring

35–65°F

March–May

Summer

70–84°F

June–August

Fall

45–68°F

September–November

Winter

17–32°F

December–February

Chicago vs Seattle: Frequently Asked Questions

Does Chicago or Seattle have better weather?

Chicago and Seattle have very different climates. Humid continental — cold harsh winters, hot humid summers, severe storms Seattle: Seattle's climate is defined by the Puget Sound, the Olympic Mountains to the west, and the Cascades. The best city depends on your preferred season and temperature range.

When is the best time to visit Chicago vs Seattle?

Best time for Chicago: May, June, September. Best time for Seattle: spring and fall.

More Comparisons

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