Rockdale, in Illinois, United States, is home to roughly 1,900 people in the Central Time Zone at 41.5°N latitude.
Rockdale has a humid continental climate. Average annual temperature is 49°F, with January lows around 15°F and July highs near 84°F. The city averages 34 inches of precipitation per year. The wettest month is typically May; the driest is January.
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