Charleston, IL
Full City Profile · Illinois · Coles County County
3.2
/5.0
B
Good
17,212
Population
1,896/sq mi density
$49,057
Median Income
$30,375 per capita
$133,700
Home Value
$169,446 Zillow
$819
Median Rent
31.0% income on rent
53°F
Avg Temperature
372
Violent Crime/100K
1,816 property/100K
B
Overall
3.2 / 5.0
Good overall score based on economy, affordability, safety and education
C+
Economy
2.9 / 5.0
$49,057 median income, 5.9% unemployment
A+
Affordability
5.0 / 5.0
$133,700 home value, $819/mo rent
F
Safety
1.0 / 5.0
372 violent crimes/100K
B+
Education
3.7 / 5.0
34.2% bachelor's degree or higher
Charleston experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 28°F in January while summers reach 76°F in July. Annual precipitation totals 36.0 inches. The area receives 19.0 inches of snow annually.
Temperature
28°F Jan (-2°C)
76°F Jul (24°C)
| Annual Average | 53.4°F |
| 1% below US avg | |
| January Average | 28°F (-2°C) |
| July Average | 76°F (24°C) |
Geography
| Elevation | 697 ft (212 m) |
| Area | 9.4 sq mi (24.2 km²) |
| Population Density | 1,896/sq mi |
| Coordinates | 39.4838°N, 88.1779°W |
| Timezone | America/Chicago |
| County | Coles County County |
| Nearest Airport | Terre Haute Regional (HUF) 47 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 70.4 / 100 |
| Social Vulnerability | 30.6 / 100 |
| Community Resilience | 74.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 28°F (-2°C) | 2.0 in | Coldest |
| February | 32°F (0°C) | 1.8 in | Driest |
| March | 43°F (6°C) | 2.2 in | |
| April | 54°F (12°C) | 4.1 in | |
| May | 64°F (18°C) | 3.9 in | |
| June | 73°F (23°C) | 4.7 in | Wettest |
| July | 76°F (24°C) | 4.0 in | Warmest |
| August | 74°F (23°C) | 2.4 in | |
| September | 67°F (20°C) | 2.9 in | |
| October | 56°F (13°C) | 3.1 in | |
| November | 43°F (6°C) | 3.0 in | |
| December | 33°F (1°C) | 1.8 in |
Charleston has a seasonal temperature swing of 48°F / from 28°F in January to 76°F in July. Total annual precipitation is 36.0 inches, with June being the wettest month (4.7") and February the driest (1.8").