All Countries
Sugar Grove, IL
Full City Profile · Illinois · Kane County County
3.8
/5.0
B+
Good
9,233
Population
879/sq mi density
$116,250
Median Income
$59,536 per capita
$372,000
Home Value
$441,712 Zillow
$1,608
Median Rent
30.3% income on rent
49°F
Avg Temperature
275 sunny days/yr
140
Violent Crime/100K
1,316 property/100K
B+
Overall
3.8 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.9 / 5.0
$116,250 median income, 2.6% unemployment
A+
Affordability
4.9 / 5.0
$372,000 home value, $1,608/mo rent
F
Safety
1.0 / 5.0
140 violent crimes/100K
A
Education
4.4 / 5.0
42.6% bachelor's degree or higher
Sugar Grove experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 23°F in January while summers reach 73°F in July. The area gets 275 sunny days per year. Annual precipitation totals 33.8 inches. Air quality is rated Good with a median AQI of 43.
Temperature
23°F Jan (-5°C)
73°F Jul (23°C)
| Annual Average | 49.4°F |
| 9% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 713 ft (217 m) |
| Area | 10.5 sq mi (27.2 km²) |
| Population Density | 879/sq mi |
| Coordinates | 41.7686°N, 88.4489°W |
| Timezone | America/Chicago |
| County | Kane County County |
| Nearest Airport | Joliet Regional (JOT) 22 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0494 ppm |
| PM2.5 (Fine Particles) | 9.8 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 94.6 / 100 |
| Social Vulnerability | 17.0 / 100 |
| Community Resilience | 63.7 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Moderate |
| Cold Wave | Very High |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 3.0 m (10 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1954 | MICHIGAN CITY, IN (LAKE MICHIGAN) | Avalanche | 3.0 m | 7 | 130 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 23°F (-5°C) | 1.5 in | Coldest |
| February | 26°F (-3°C) | 1.3 in | Driest |
| March | 37°F (3°C) | 2.6 in | |
| April | 49°F (9°C) | 3.8 in | |
| May | 60°F (16°C) | 3.9 in | |
| June | 70°F (21°C) | 4.2 in | Wettest |
| July | 73°F (23°C) | 3.9 in | Warmest |
| August | 71°F (22°C) | 4.0 in | |
| September | 64°F (18°C) | 3.8 in | |
| October | 52°F (11°C) | 2.7 in | |
| November | 39°F (4°C) | 3.0 in | |
| December | 26°F (-3°C) | 2.3 in |
Sugar Grove has a seasonal temperature swing of 51°F / from 23°F in January to 73°F in July. Total annual precipitation is 37.1 inches, with June being the wettest month (4.2") and February the driest (1.3").