All Countries
Garden Prairie, IL
Full City Profile · Illinois · Boone County County
3.6
/5.0
B+
Good
560
Population
875/sq mi density
$42,188
Median Income
$16,608 per capita
$108,000
Home Value
$311,670 Zillow
48°F
Avg Temperature
260 sunny days/yr
173
Violent Crime/100K
933 property/100K
B+
Overall
3.6 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.8 / 5.0
$42,188 median income, 0.0% unemployment
A+
Affordability
5.0 / 5.0
$108,000 home value, /mo rent
F
Safety
1.0 / 5.0
173 violent crimes/100K
A+
Education
4.6 / 5.0
0.0% bachelor's degree or higher
Garden Prairie experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 21°F in January while summers reach 73°F in July. The area gets 260 sunny days per year. Annual precipitation totals 37.6 inches. The area receives 30.8 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
21°F Jan (-6°C)
73°F Jul (23°C)
| Annual Average | 48.2°F |
| 11% below US avg | |
| January Average | 21°F (-6°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 780 ft (238 m) |
| Area | 0.6 sq mi (1.7 km²) |
| Population Density | 875/sq mi |
| Coordinates | 42.2536°N, 88.7129°W |
| Timezone | America/Chicago |
| County | Boone County County |
| Nearest Airport | Chicago/Rockford International (RFD) 20 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 57.4 / 100 |
| Social Vulnerability | 27.9 / 100 |
| Community Resilience | 72.2 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 21°F (-6°C) | 1.4 in | Coldest |
| February | 24°F (-4°C) | 1.2 in | Driest |
| March | 35°F (2°C) | 2.4 in | |
| April | 47°F (9°C) | 3.6 in | |
| May | 59°F (15°C) | 3.7 in | |
| June | 69°F (20°C) | 4.3 in | Wettest |
| July | 73°F (23°C) | 4.0 in | Warmest |
| August | 70°F (21°C) | 4.2 in | |
| September | 62°F (17°C) | 3.8 in | |
| October | 51°F (11°C) | 2.6 in | |
| November | 37°F (3°C) | 2.7 in | |
| December | 25°F (-4°C) | 2.0 in |
Garden Prairie has a seasonal temperature swing of 52°F / from 21°F in January to 73°F in July. Total annual precipitation is 35.8 inches, with June being the wettest month (4.3") and February the driest (1.2").