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Saybrook, IL
Full City Profile · Illinois · McLean County County
2.9
/5.0
C+
Fair
714
Population
893/sq mi density
$54,479
Median Income
$25,457 per capita
$92,900
Home Value
$160,291 Zillow
$829
Median Rent
26.3% income on rent
51°F
Avg Temperature
275 sunny days/yr
150
Violent Crime/100K
1,676 property/100K
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
B
Economy
3.4 / 5.0
$54,479 median income, 2.0% unemployment
A+
Affordability
5.0 / 5.0
$92,900 home value, $829/mo rent
F
Safety
1.0 / 5.0
150 violent crimes/100K
C
Education
2.2 / 5.0
14.7% bachelor's degree or higher
Saybrook experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 24°F in January while summers reach 74°F in July. The area gets 275 sunny days per year. Annual precipitation totals 37.7 inches. The area receives 18.3 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
24°F Jan (-4°C)
74°F Jul (23°C)
| Annual Average | 50.7°F |
| 6% below US avg | |
| January Average | 24°F (-4°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 813 ft (248 m) |
| Area | 0.3 sq mi (0.8 km²) |
| Population Density | 893/sq mi |
| Coordinates | 40.4281°N, 88.5262°W |
| Timezone | America/Chicago |
| County | McLean County County |
| Nearest Airport | Central Il Regional/Bloomington-Normal (BMI) 21 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
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 | 24°F (-4°C) | 1.7 in | Coldest |
| February | 28°F (-2°C) | 1.6 in | Driest |
| March | 39°F (4°C) | 3.1 in | |
| April | 51°F (10°C) | 3.8 in | |
| May | 62°F (17°C) | 4.1 in | Wettest |
| June | 71°F (22°C) | 3.7 in | |
| July | 74°F (23°C) | 4.1 in | Warmest |
| August | 72°F (22°C) | 3.7 in | |
| September | 66°F (19°C) | 3.4 in | |
| October | 54°F (12°C) | 2.7 in | |
| November | 41°F (5°C) | 2.8 in | |
| December | 29°F (-2°C) | 2.8 in |
Saybrook has a seasonal temperature swing of 50°F / from 24°F in January to 74°F in July. Total annual precipitation is 37.3 inches, with May being the wettest month (4.1") and February the driest (1.6").