Bloomington, IL
Full City Profile · Illinois · McLean County County
4.7
/5.0
A+
Excellent
78,703
Population
2,903/sq mi density
$75,449
Median Income
$44,142 per capita
$198,800
Home Value
$270,349 Zillow
$1,004
Median Rent
24.5% income on rent
51°F
Avg Temperature
A+
Overall
4.7 / 5.0
Strong
A
Economy
4.3 / 5.0
$75,449 median income, 2.6% unemployment
A+
Affordability
5.0 / 5.0
$198,800 home value, $1,004/mo rent
A+
Education
4.9 / 5.0
48.9% bachelor's degree or higher
Bloomington experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 25°F in January while summers reach 75°F in July. Annual precipitation totals 38.5 inches. The area receives 6.5 inches of snow annually. Air quality is rated Good with a median AQI of 44.
Temperature
25°F Jan (-4°C)
75°F Jul (24°C)
| Annual Average | 51.1°F |
| 5% below US avg | |
| January Average | 25°F (-4°C) |
| July Average | 75°F (24°C) |
Geography
| Elevation | 846 ft (258 m) |
| Area | 27.2 sq mi (70.3 km²) |
| Population Density | 2,903/sq mi |
| Coordinates | 40.4758°N, 88.9699°W |
| Timezone | America/Chicago |
| County | McLean County County |
| Nearest Airport | Central Il Regional/Bloomington-Normal (BMI) 3 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 44.0 |
| Rating | Good |
| Good Days % | 69.4% |
| Unhealthy Days | 1 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0482 ppm |
| PM2.5 (Fine Particles) | 8.8 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 86.9 / 100 |
| Social Vulnerability | 15.1 / 100 |
| Community Resilience | 95.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Moderate |
| Drought | Relatively High |
| Cold Wave | Relatively High |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 25°F (-4°C) | 2.1 in | Coldest |
| February | 29°F (-2°C) | 1.8 in | Driest |
| March | 39°F (4°C) | 2.7 in | |
| April | 50°F (10°C) | 3.9 in | |
| May | 62°F (17°C) | 4.5 in | Wettest |
| June | 72°F (22°C) | 4.4 in | |
| July | 75°F (24°C) | 3.8 in | Warmest |
| August | 73°F (23°C) | 3.8 in | |
| September | 66°F (19°C) | 3.1 in | |
| October | 54°F (12°C) | 3.1 in | |
| November | 41°F (5°C) | 2.9 in | |
| December | 30°F (-1°C) | 2.5 in |
Bloomington has a seasonal temperature swing of 50°F / from 25°F in January to 75°F in July. Total annual precipitation is 38.5 inches, with May being the wettest month (4.5") and February the driest (1.8").