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Westville, IL
Full City Profile · Illinois · Vermilion County County
2.9
/5.0
C+
Fair
3,442
Population
2,049/sq mi density
$52,809
Median Income
$26,344 per capita
$98,800
Home Value
$105,006 Zillow
$751
Median Rent
21.2% income on rent
53°F
Avg Temperature
275 sunny days/yr
607
Violent Crime/100K
1,822 property/100K
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.5 / 5.0
$52,809 median income, 4.1% unemployment
A+
Affordability
5.0 / 5.0
$98,800 home value, $751/mo rent
F
Safety
1.0 / 5.0
607 violent crimes/100K (60% above avg)
D
Education
1.9 / 5.0
11.4% bachelor's degree or higher
Westville experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 27°F in January while summers reach 75°F in July. The area gets 275 sunny days per year. Annual precipitation totals 43.2 inches. Air quality is rated Good with a median AQI of 43.
Temperature
27°F Jan (-3°C)
75°F Jul (24°C)
| Annual Average | 53.1°F |
| 2% below US avg | |
| January Average | 27°F (-3°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 672 ft (205 m) |
| Area | 0.7 sq mi (1.7 km²) |
| Population Density | 2,049/sq mi |
| Coordinates | 40.0440°N, 87.6389°W |
| Timezone | America/Chicago |
| County | Vermilion County County |
| Nearest Airport | Vermilion Regional (DNV) 11 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 78.8 / 100 |
| Social Vulnerability | 70.2 / 100 |
| Community Resilience | 87.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Moderate |
| Cold Wave | Relatively High |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 27°F (-3°C) | 1.9 in | Coldest, Driest |
| February | 29°F (-2°C) | 1.9 in | |
| March | 41°F (5°C) | 3.2 in | |
| April | 51°F (11°C) | 4.0 in | |
| May | 62°F (17°C) | 4.4 in | Wettest |
| June | 71°F (22°C) | 4.3 in | |
| July | 75°F (24°C) | 4.4 in | Warmest |
| August | 73°F (23°C) | 3.9 in | |
| September | 66°F (19°C) | 3.1 in | |
| October | 55°F (13°C) | 3.0 in | |
| November | 42°F (6°C) | 3.5 in | |
| December | 31°F (-1°C) | 2.8 in |
Westville has a seasonal temperature swing of 48°F / from 27°F in January to 75°F in July. Total annual precipitation is 40.4 inches, with May being the wettest month (4.4") and January the driest (1.9").