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McLean, IL
Full City Profile · Illinois · Logan County County
3.4
/5.0
B
Good
730
Population
619/sq mi density
$84,766
Median Income
$47,648 per capita
$124,700
Home Value
$188,273 Zillow
$1,225
Median Rent
22.5% income on rent
50°F
Avg Temperature
275 sunny days/yr
125
Violent Crime/100K
878 property/100K
B
Overall
3.4 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.7 / 5.0
$84,766 median income, 1.1% unemployment
A+
Affordability
5.0 / 5.0
$124,700 home value, $1,225/mo rent
F
Safety
1.0 / 5.0
125 violent crimes/100K
C+
Education
2.9 / 5.0
24.0% bachelor's degree or higher
McLean experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 23°F in January while summers reach 74°F in July. The area gets 275 sunny days per year. Annual precipitation totals 40.4 inches. Air quality is rated Good with a median AQI of 44.
Temperature
23°F Jan (-5°C)
74°F Jul (23°C)
| Annual Average | 50.2°F |
| 7% below US avg | |
| January Average | 23°F (-5°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 708 ft (216 m) |
| Area | 0.2 sq mi (0.4 km²) |
| Population Density | 619/sq mi |
| Coordinates | 40.3136°N, 89.1686°W |
| Timezone | America/Chicago |
| County | Logan County County |
| Nearest Airport | Central Il Regional/Bloomington-Normal (BMI) 17 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 44.0 |
| Rating | Good |
| Good Days % | 69.4% |
| Unhealthy Days | 1 |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 58.1 / 100 |
| Social Vulnerability | 38.4 / 100 |
| Community Resilience | 82.2 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | Relatively High |
| 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) | 1.7 in | Coldest |
| February | 29°F (-2°C) | 1.6 in | Driest |
| March | 40°F (5°C) | 3.2 in | |
| April | 52°F (11°C) | 3.7 in | |
| May | 63°F (17°C) | 4.4 in | Wettest |
| June | 72°F (22°C) | 4.0 in | |
| July | 74°F (23°C) | 4.1 in | Warmest |
| August | 73°F (23°C) | 3.7 in | |
| September | 66°F (19°C) | 3.5 in | |
| October | 54°F (12°C) | 2.8 in | |
| November | 41°F (5°C) | 2.9 in | |
| December | 29°F (-1°C) | 2.7 in |
McLean has a seasonal temperature swing of 51°F / from 23°F in January to 74°F in July. Total annual precipitation is 38.1 inches, with May being the wettest month (4.4") and February the driest (1.6").