Wenona, IL
Full City Profile · Illinois · Marshall County County
3.6
/5.0
B+
Good
1,006
Population
1,359/sq mi density
$40,921
Median Income
$29,942 per capita
$88,900
Home Value
$118,307 Zillow
$785
Median Rent
27.9% income on rent
51°F
Avg Temperature
B+
Overall
3.6 / 5.0
Good overall score based on economy, affordability, safety and education
B
Economy
3.1 / 5.0
$40,921 median income, 1.1% unemployment
A+
Affordability
5.0 / 5.0
$88,900 home value, $785/mo rent
C+
Education
2.6 / 5.0
19.6% bachelor's degree or higher
Wenona experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 24°F in January while summers reach 75°F in July. Annual precipitation totals 37.1 inches. The area receives 18.4 inches of snow annually.
Temperature
24°F Jan (-4°C)
75°F Jul (24°C)
| Annual Average | 51.2°F |
| 5% below US avg | |
| January Average | 24°F (-4°C) |
| July Average | 75°F (24°C) |
Geography
| Elevation | 688 ft (210 m) |
| Area | 0.3 sq mi (0.8 km²) |
| Population Density | 1,359/sq mi |
| Coordinates | 41.0487°N, 89.0523°W |
| Timezone | America/Chicago |
| County | Marshall County County |
| Nearest Airport | Illinois Valley Regional-Walter A Duncan Field (VYS) 21 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 27.2 / 100 |
| Social Vulnerability | 45.7 / 100 |
| Community Resilience | 92.1 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Very Low |
| Winter Weather | Very Low |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 24°F (-4°C) | 1.9 in | Coldest |
| February | 28°F (-2°C) | 1.6 in | Driest |
| March | 39°F (4°C) | 2.4 in | |
| April | 51°F (10°C) | 3.8 in | |
| May | 63°F (17°C) | 4.5 in | Wettest |
| June | 72°F (22°C) | 4.1 in | |
| July | 75°F (24°C) | 3.8 in | Warmest |
| August | 73°F (23°C) | 3.9 in | |
| September | 66°F (19°C) | 3.5 in | |
| October | 54°F (12°C) | 3.1 in | |
| November | 41°F (5°C) | 2.8 in | |
| December | 30°F (-1°C) | 1.9 in |
Wenona has a seasonal temperature swing of 51°F / from 24°F in January to 75°F in July. Total annual precipitation is 37.1 inches, with May being the wettest month (4.5") and February the driest (1.6").