🇺🇸 Chicago vs Seattle 🇺🇸

Chicago, United States vs Seattle, United States — a side-by-side climate comparison to help you pick. Seattle is the warmer of the two — about 1 degree warmer on average across the year. Chicago is drier, with roughly 9 fewer rainy days a year.

Climate at a glance

🇺🇸 Chicago🇺🇸 Seattle
Avg annual high14°C15°C
Hottest monthJuly (26°C)August (25°C)
Coldest monthFebruary (-7°C low)February (2°C low)
Rainy days / year194203
SnowRareRare
Best months to visitMay, June, SeptemberJune, July, August

🇺🇸 Chicago

Best around May, June, September. Hottest in July (26°C), coldest lows in February (-7°C).

🇺🇸 Seattle

Best around June, July, August. Hottest in August (25°C), coldest lows in February (2°C).

Frequently asked questions

Is Chicago or Seattle warmer?

Seattle is warmer overall, averaging about 1 degree higher across the year.

Which is rainier, Chicago or Seattle?

Seattle is rainier — Chicago sees about 9 fewer rainy days per year.

When is the best time to visit Chicago vs Seattle?

Chicago is best around May, June, September; Seattle is best around June, July, August.

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