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Chicago Climate & Weather

Chicago has an extreme continental climate with very hot summers and bitterly cold winters, its lakeside setting only slightly moderating the temperatures and adding some humidity to the atmosphere.

Chicago has distinct seasons, with a short spring, when temperatures are moderate and nights frosty. Summers are hot, sunny and humid, from June to the end of September, and are prone to thunderstorms. The daily average high in July is around 84°F (29°C). August is usually the wettest month of the year.

Autumn is a lovely time of year when the air is crisp and cool, with blue skies and sunshine. Winters (December to February) in Chicago are icy and prone to cold, harsh winds, with temperatures averaging between 32°F (0°C) highs in the afternoons and around 14°F (-10°C) lows at night. Snow is common.

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