Aurora, IL
Full City Profile · Illinois · DuPage County County
3.5
/5.0
B+
Good
179,867
Population
3,992/sq mi density
$90,109
Median Income
$39,604 per capita
$260,400
Home Value
$324,261 Zillow
$1,535
Median Rent
28.5% income on rent
50°F
Avg Temperature
269
Violent Crime/100K
1,247 property/100K
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.1 / 5.0
$90,109 median income, 5.9% unemployment
A+
Affordability
5.0 / 5.0
$260,400 home value, $1,535/mo rent
F
Safety
1.0 / 5.0
269 violent crimes/100K
B+
Education
4.0 / 5.0
37.2% bachelor's degree or higher
Aurora experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 23°F in January while summers reach 74°F in July. Annual precipitation totals 39.5 inches. The area receives 27.9 inches of snow annually. Air quality is rated Good with a median AQI of 45.
Temperature
23°F Jan (-5°C)
74°F Jul (24°C)
| Annual Average | 50.2°F |
| 7% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 74°F (24°C) |
Geography
| Elevation | 725 ft (221 m) |
| Area | 45.8 sq mi (118.5 km²) |
| Population Density | 3,992/sq mi |
| Coordinates | 41.7635°N, 88.2901°W |
| Timezone | America/Chicago |
| County | DuPage County County |
| Nearest Airport | Joliet Regional (JOT) 18 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 45.0 |
| Rating | Good |
| Good Days % | 62.8% |
| Unhealthy Days | 0 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0475 ppm |
| PM2.5 (Fine Particles) | 10.1 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 97.7 / 100 |
| Social Vulnerability | 15.8 / 100 |
| Community Resilience | 71.8 / 100 |
Hazard Breakdown
| Tornado | Very High |
| Hurricane | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Relatively Low |
| Strong Wind | Very High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | Very Low |
| 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 | 117 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 23°F (-5°C) | 1.9 in | Coldest |
| February | 27°F (-3°C) | 1.8 in | Driest |
| March | 38°F (3°C) | 2.4 in | |
| April | 50°F (10°C) | 4.1 in | |
| May | 61°F (16°C) | 4.9 in | Wettest |
| June | 70°F (21°C) | 4.5 in | |
| July | 74°F (24°C) | 4.2 in | Warmest |
| August | 73°F (23°C) | 3.9 in | |
| September | 66°F (19°C) | 3.4 in | |
| October | 53°F (12°C) | 3.7 in | |
| November | 40°F (4°C) | 2.7 in | |
| December | 29°F (-2°C) | 2.2 in |
Aurora has a seasonal temperature swing of 51°F / from 23°F in January to 74°F in July. Total annual precipitation is 39.5 inches, with May being the wettest month (4.9") and February the driest (1.8").