Allerton, Illinois — City Overview

Living in Allerton, summers are warm, peaking at 84.8°F in Jul, while winters are cold — Feb lows average 21.8°F. Winter heating is a real budget factor — 4881 degree days means 4-5 months of meaningful energy bills. With 39.7 inches annually, the climate is relatively dry. Within 5 miles: 2 parks and 2 schools. For hospital care, the nearest facility is in a neighboring city. Median household income: $58,750. With a 9.3% poverty rate and 86.6% homeownership, the community reflects a stable residential mix. Air quality is Good — avg AQI 42 over the past week.

View Allerton city guide

Updated August 27, 2026.

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