Addison, IL
Full City Profile · Illinois · DuPage County County
3.1
/5.0
B
Good
35,470
Population
3,608/sq mi density
$87,587
Median Income
$39,697 per capita
$318,000
Home Value
$381,354 Zillow
$1,238
Median Rent
24.7% income on rent
51°F
Avg Temperature
146
Violent Crime/100K
908 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.2 / 5.0
$87,587 median income, 4.4% unemployment
A+
Affordability
4.6 / 5.0
$318,000 home value, $1,238/mo rent
F
Safety
1.0 / 5.0
146 violent crimes/100K
C+
Education
2.8 / 5.0
21.9% bachelor's degree or higher
Addison experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 25°F in January while summers reach 75°F in July. Annual precipitation totals 37.9 inches. The area receives 38.4 inches of snow annually. Air quality is rated Good with a median AQI of 45.
Temperature
25°F Jan (-4°C)
75°F Jul (24°C)
| Annual Average | 51.3°F |
| 5% below US avg | |
| January Average | 25°F (-4°C) |
| July Average | 75°F (24°C) |
Geography
| Elevation | 709 ft (216 m) |
| Area | 10.0 sq mi (25.8 km²) |
| Population Density | 3,608/sq mi |
| Coordinates | 41.9308°N, 88.0090°W |
| Timezone | America/Chicago |
| County | DuPage County County |
| Nearest Airport | Chicago O'Hare International (ORD) 6 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 | 97 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 25°F (-4°C) | 2.0 in | Coldest |
| February | 29°F (-2°C) | 2.0 in | Driest |
| March | 39°F (4°C) | 2.5 in | |
| April | 50°F (10°C) | 3.8 in | |
| May | 61°F (16°C) | 4.5 in | Wettest |
| June | 71°F (21°C) | 4.1 in | |
| July | 75°F (24°C) | 3.7 in | Warmest |
| August | 74°F (23°C) | 4.3 in | |
| September | 66°F (19°C) | 3.2 in | |
| October | 54°F (12°C) | 3.4 in | |
| November | 41°F (5°C) | 2.4 in | |
| December | 31°F (-1°C) | 2.1 in |
Addison has a seasonal temperature swing of 50°F / from 25°F in January to 75°F in July. Total annual precipitation is 37.9 inches, with May being the wettest month (4.5") and February the driest (2.0").