Garden Prairie, Illinois — City Overview

Living in Garden Prairie, summers are warm, peaking at 83.5°F in Jul, while winters are cold — Jan lows average 15.2°F. At 6208 heating degree days per year, winter energy bills are significant. With 38.4 inches annually, the climate is relatively dry. Median household income: $37,303. With a 11.3% poverty rate and 85.0% homeownership, the community reflects a stable residential mix. Nearby cities: Belvidere (6mi W), Marengo (6mi E), Harvard (13mi NE). Air quality is Good — avg AQI 36 over the past week.

View Garden Prairie city guide

Updated October 09, 2026.

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