Casey, IL
Full City Profile · Illinois · Clark County County
2.6
/5.0
C+
Fair
2,258
Population
862/sq mi density
$48,631
Median Income
$30,446 per capita
$86,000
Home Value
$135,610 Zillow
$744
Median Rent
26.7% income on rent
54°F
Avg Temperature
214
Violent Crime/100K
1,329 property/100K
C+
Overall
2.6 / 5.0
Fair overall score based on economy, affordability, safety and education
C
Economy
2.4 / 5.0
$48,631 median income, 9.4% unemployment
A+
Affordability
5.0 / 5.0
$86,000 home value, $744/mo rent
F
Safety
1.0 / 5.0
214 violent crimes/100K
C
Education
2.1 / 5.0
13.9% bachelor's degree or higher
Casey experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 28°F in January while summers reach 77°F in July. Annual precipitation totals 45.5 inches. The area receives 11.9 inches of snow annually. Air quality is rated Good with a median AQI of 36.
Temperature
28°F Jan (-2°C)
77°F Jul (25°C)
| Annual Average | 54.1°F |
| 0% below US avg | |
| January Average | 28°F (-2°C) |
| July Average | 77°F (25°C) |
Geography
| Elevation | 643 ft (196 m) |
| Area | 0.8 sq mi (2.1 km²) |
| Population Density | 862/sq mi |
| Coordinates | 39.3054°N, 87.9853°W |
| Timezone | America/Chicago |
| County | Clark County County |
| Nearest Airport | Terre Haute Regional (HUF) 38 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 36.0 |
| Rating | Good |
| Good Days % | 91.5% |
| Unhealthy Days | 0 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0460 ppm |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 27.3 / 100 |
| Social Vulnerability | 42.7 / 100 |
| Community Resilience | 67.1 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 28°F (-2°C) | 3.3 in | Coldest |
| February | 32°F (0°C) | 2.6 in | Driest |
| March | 43°F (6°C) | 3.3 in | |
| April | 54°F (12°C) | 5.1 in | |
| May | 65°F (18°C) | 4.5 in | |
| June | 73°F (23°C) | 5.2 in | Wettest |
| July | 77°F (25°C) | 4.6 in | Warmest |
| August | 75°F (24°C) | 3.0 in | |
| September | 68°F (20°C) | 3.1 in | |
| October | 56°F (14°C) | 3.8 in | |
| November | 44°F (7°C) | 4.0 in | |
| December | 33°F (1°C) | 3.1 in |
Casey has a seasonal temperature swing of 48°F / from 28°F in January to 77°F in July. Total annual precipitation is 45.5 inches, with June being the wettest month (5.2") and February the driest (2.6").