Quincy, in Illinois, United States, is home to roughly 40,800 people in the Central Time Zone at 39.9°N latitude.
Quincy has a humid continental climate. Average annual temperature is 53°F, with January lows around 19°F and July highs near 86°F. The city averages 36 inches of precipitation per year. The wettest month is typically May; the driest is January.
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