Petersburg, in Indiana, United States, is home to roughly 2,300 people in the America/Indiana/Petersburg time zone at 38.5°N latitude.
Petersburg has a humid continental climate. Average annual temperature is 56°F, with January lows around 23°F and July highs near 88°F. The city averages 42 inches of precipitation per year. The wettest month is typically May; the driest is February.
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