With a population of around 42,500, Plainfield sits in Illinois, United States. The city operates in the Central Time Zone.
Expect a humid continental climate in Plainfield: average highs of 84°F in midsummer, lows near 15°F in midwinter, and an annual mean of 49°F. Precipitation totals roughly 34 inches per year, concentrated around May, with January typically the driest month.
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