Gilman, Illinois — City Overview

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Living in Gilman, summers are warm, peaking at 84.0°F in Jul, while winters are cold — Feb lows average 19.8°F. Winter heating is a real budget factor — 5227 degree days means 4-5 months of meaningful energy bills. With 39.5 inches annually, the climate is relatively dry. Median household income: $64,583. With a 7.1% poverty rate and 78.7% homeownership, the community reflects a stable residential mix. Air quality is Good — avg AQI 33 over the past week.

View Gilman city guide

Updated October 09, 2026.

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