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Blandinsville, IL
Full City Profile · Illinois · McDonough County County
3.8
/5.0
B+
Good
715
Population
813/sq mi density
$52,500
Median Income
$28,112 per capita
$65,400
Home Value
$95,730 Zillow
$691
Median Rent
41.9% income on rent
51°F
Avg Temperature
275 sunny days/yr
B+
Overall
3.8 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.1 / 5.0
$52,500 median income, 1.5% unemployment
A+
Affordability
5.0 / 5.0
$65,400 home value, $691/mo rent
C
Education
2.2 / 5.0
14.9% bachelor's degree or higher
Blandinsville experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 23°F in January while summers reach 75°F in July. The area gets 275 sunny days per year. Annual precipitation totals 39.1 inches. Air quality is rated Good with a median AQI of 43.
Temperature
23°F Jan (-5°C)
75°F Jul (24°C)
| Annual Average | 50.8°F |
| 6% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 720 ft (219 m) |
| Area | 0.3 sq mi (0.9 km²) |
| Population Density | 813/sq mi |
| Coordinates | 40.5540°N, 90.8683°W |
| Timezone | America/Chicago |
| County | McDonough County County |
| Nearest Airport | Southeast Iowa Regional (BRL) 21 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 37.5 / 100 |
| Social Vulnerability | 61.9 / 100 |
| Community Resilience | 74.3 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 23°F (-5°C) | 1.5 in | Coldest, Driest |
| February | 28°F (-2°C) | 1.5 in | |
| March | 40°F (4°C) | 2.8 in | |
| April | 52°F (11°C) | 3.8 in | |
| May | 62°F (17°C) | 4.3 in | Wettest |
| June | 72°F (22°C) | 4.1 in | |
| July | 75°F (24°C) | 4.3 in | Warmest |
| August | 73°F (23°C) | 3.7 in | |
| September | 66°F (19°C) | 4.2 in | |
| October | 54°F (12°C) | 2.9 in | |
| November | 40°F (4°C) | 2.8 in | |
| December | 28°F (-2°C) | 2.1 in |
Blandinsville has a seasonal temperature swing of 51°F / from 23°F in January to 75°F in July. Total annual precipitation is 37.8 inches, with May being the wettest month (4.3") and January the driest (1.5").