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Des Plaines, IL
Full City Profile · Illinois · Lake County County
3.6
/5.0
B+
Good
59,408
Population
4,172/sq mi density
$94,303
Median Income
$44,032 per capita
$318,200
Home Value
$331,334 Zillow
$1,435
Median Rent
26.7% income on rent
51°F
Avg Temperature
260 sunny days/yr
95
Violent Crime/100K
1,101 property/100K
B+
Overall
3.6 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.7 / 5.0
$94,303 median income, 3.0% unemployment
A+
Affordability
4.8 / 5.0
$318,200 home value, $1,435/mo rent
F
Safety
1.0 / 5.0
95 violent crimes/100K
A
Education
4.1 / 5.0
38.7% bachelor's degree or higher
Des Plaines 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. The area gets 260 sunny days per year. Annual precipitation totals 32.3 inches. Air quality is rated Good with a median AQI of 43.
Temperature
25°F Jan (-4°C)
75°F Jul (24°C)
| Annual Average | 50.8°F |
| 6% below US avg | |
| January Average | 25°F (-4°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 653 ft (199 m) |
| Area | 5.6 sq mi (14.5 km²) |
| Population Density | 4,172/sq mi |
| Coordinates | 42.0344°N, 87.9011°W |
| Timezone | America/Chicago |
| County | Lake County County |
| Nearest Airport | Chicago O'Hare International (ORD) 4 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0480 ppm |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 96.0 / 100 |
| Social Vulnerability | 14.1 / 100 |
| Community Resilience | 78.1 / 100 |
Hazard Breakdown
| Tornado | Very High |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Relatively Moderate |
| Strong Wind | Very High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Very High |
| Landslide | Very Low |
| Coastal Flood | 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 | 92 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 25°F (-4°C) | 1.7 in | Coldest |
| February | 27°F (-3°C) | 1.4 in | Driest |
| March | 37°F (3°C) | 2.5 in | |
| April | 48°F (9°C) | 3.6 in | |
| May | 59°F (15°C) | 3.5 in | |
| June | 69°F (21°C) | 3.8 in | |
| July | 75°F (24°C) | 3.7 in | Warmest |
| August | 72°F (22°C) | 4.2 in | Wettest |
| September | 64°F (18°C) | 3.5 in | |
| October | 53°F (11°C) | 2.5 in | |
| November | 40°F (4°C) | 2.8 in | |
| December | 27°F (-3°C) | 2.3 in |
Des Plaines has a seasonal temperature swing of 50°F / from 25°F in January to 75°F in July. Total annual precipitation is 35.6 inches, with August being the wettest month (4.2") and February the driest (1.4").