Vernon, IL
Full City Profile · Illinois · Bond County County
3.1
/5.0
B
Good
83
Population
94/sq mi density
$49,583
Median Income
$30,467 per capita
$625
Median Rent
10.0% income on rent
54°F
Avg Temperature
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
C+
Economy
2.7 / 5.0
$49,583 median income, 5.4% unemployment
A+
Affordability
5.0 / 5.0
D
Education
1.7 / 5.0
9.2% bachelor's degree or higher
Vernon experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 29°F in January while summers reach 77°F in July. Annual precipitation totals 44.1 inches. The area receives 14.7 inches of snow annually.
Temperature
29°F Jan (-2°C)
77°F Jul (25°C)
| Annual Average | 54.2°F |
| 0% below US avg | |
| January Average | 29°F (-2°C) |
| July Average | 77°F (25°C) |
Geography
| Elevation | 514 ft (157 m) |
| Area | 0.4 sq mi (0.9 km²) |
| Population Density | 94/sq mi |
| Coordinates | 38.8014°N, 89.0875°W |
| Timezone | America/Chicago |
| County | Bond County County |
| Nearest Airport | St Louis Regional (ALN) 52 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 36.2 / 100 |
| Social Vulnerability | 43.7 / 100 |
| Community Resilience | 76.8 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 29°F (-2°C) | 2.7 in | Coldest |
| February | 33°F (1°C) | 2.5 in | Driest |
| March | 43°F (6°C) | 4.0 in | |
| April | 54°F (12°C) | 4.6 in | |
| May | 65°F (18°C) | 5.7 in | Wettest |
| June | 74°F (23°C) | 4.8 in | |
| July | 77°F (25°C) | 4.0 in | Warmest |
| August | 75°F (24°C) | 2.7 in | |
| September | 68°F (20°C) | 3.2 in | |
| October | 56°F (13°C) | 3.7 in | |
| November | 44°F (7°C) | 3.6 in | |
| December | 34°F (1°C) | 2.6 in |
Vernon has a seasonal temperature swing of 48°F / from 29°F in January to 77°F in July. Total annual precipitation is 44.1 inches, with May being the wettest month (5.7") and February the driest (2.5").