All Countries
Spring Bay, IL
Full City Profile · Illinois · Peoria County County
2.8
/5.0
C+
Fair
519
Population
752/sq mi density
$61,111
Median Income
$27,850 per capita
$134,900
Home Value
$119,696 Zillow
$1,083
Median Rent
35.5% income on rent
53°F
Avg Temperature
275 sunny days/yr
379
Violent Crime/100K
2,568 property/100K
C+
Overall
2.8 / 5.0
Fair overall score based on economy, affordability, safety and education
B
Economy
3.2 / 5.0
$61,111 median income, 4.0% unemployment
A+
Affordability
5.0 / 5.0
$134,900 home value, $1,083/mo rent
F
Safety
1.0 / 5.0
379 violent crimes/100K
D
Education
1.9 / 5.0
11.5% bachelor's degree or higher
Spring Bay experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 26°F in January while summers reach 76°F in July. The area gets 275 sunny days per year. Annual precipitation totals 37.6 inches. The area receives 26.2 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
26°F Jan (-4°C)
76°F Jul (25°C)
| Annual Average | 52.7°F |
| 2% below US avg | |
| January Average | 26°F (-4°C) |
| July Average | 76°F (25°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 456 ft (139 m) |
| Area | 0.7 sq mi (1.8 km²) |
| Population Density | 752/sq mi |
| Coordinates | 40.8212°N, 89.5311°W |
| Timezone | America/Chicago |
| County | Peoria County County |
| Nearest Airport | General Downing - Peoria International (PIA) 14 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0489 ppm |
| PM2.5 (Fine Particles) | 8.6 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 90.7 / 100 |
| Social Vulnerability | 50.0 / 100 |
| Community Resilience | 93.6 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively High |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | Relatively Moderate |
| Cold Wave | Relatively High |
| Landslide | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 26°F (-4°C) | 1.5 in | Coldest |
| February | 28°F (-2°C) | 1.5 in | Driest |
| March | 39°F (4°C) | 2.9 in | |
| April | 51°F (11°C) | 3.7 in | |
| May | 62°F (17°C) | 4.1 in | Wettest |
| June | 71°F (22°C) | 4.0 in | |
| July | 76°F (25°C) | 3.9 in | Warmest |
| August | 73°F (23°C) | 3.4 in | |
| September | 66°F (19°C) | 3.7 in | |
| October | 54°F (12°C) | 2.8 in | |
| November | 41°F (5°C) | 2.8 in | |
| December | 28°F (-2°C) | 2.4 in |
Spring Bay has a seasonal temperature swing of 51°F / from 26°F in January to 76°F in July. Total annual precipitation is 36.9 inches, with May being the wettest month (4.1") and February the driest (1.5").