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Oblong, IL
Full City Profile · Illinois · Crawford County County
2.8
/5.0
C+
Fair
1,617
Population
1,483/sq mi density
$52,702
Median Income
$25,824 per capita
$78,400
Home Value
$123,908 Zillow
$532
Median Rent
14.9% income on rent
54°F
Avg Temperature
293 sunny days/yr
585
Violent Crime/100K
1,681 property/100K
C+
Overall
2.8 / 5.0
Fair overall score based on economy, affordability, safety and education
B
Economy
3.3 / 5.0
$52,702 median income, 2.9% unemployment
A+
Affordability
5.0 / 5.0
$78,400 home value, $532/mo rent
F
Safety
1.0 / 5.0
585 violent crimes/100K (54% above avg)
D
Education
1.8 / 5.0
9.5% bachelor's degree or higher
Oblong experiences four distinct seasons with an average annual temperature of 54°F (12°C). Winters average 29°F in January while summers reach 77°F in July. The area gets 293 sunny days per year. Annual precipitation totals 45.5 inches. Air quality is rated Good with a median AQI of 43.
Temperature
29°F Jan (-2°C)
77°F Jul (25°C)
| Annual Average | 54.1°F |
| 0% below US avg | |
| January Average | 29°F (-2°C) |
| July Average | 77°F (25°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 511 ft (156 m) |
| Area | 1.1 sq mi (2.8 km²) |
| Population Density | 1,483/sq mi |
| Coordinates | 39.0023°N, 87.9105°W |
| Timezone | America/Chicago |
| County | Crawford County County |
| Nearest Airport | Lawrenceville-Vincennes International (LWV) 23 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 37.0 / 100 |
| Social Vulnerability | 17.2 / 100 |
| Community Resilience | 75.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively 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 | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 29°F (-2°C) | 2.3 in | Coldest, Driest |
| February | 32°F (-0°C) | 2.4 in | |
| March | 43°F (6°C) | 3.8 in | |
| April | 53°F (12°C) | 4.0 in | |
| May | 64°F (18°C) | 4.3 in | Wettest |
| June | 73°F (23°C) | 3.9 in | |
| July | 77°F (25°C) | 4.3 in | Warmest |
| August | 74°F (24°C) | 3.6 in | |
| September | 68°F (20°C) | 3.2 in | |
| October | 56°F (13°C) | 2.9 in | |
| November | 44°F (7°C) | 3.8 in | |
| December | 33°F (0°C) | 3.3 in |
Oblong has a seasonal temperature swing of 48°F / from 29°F in January to 77°F in July. Total annual precipitation is 41.7 inches, with May being the wettest month (4.3") and January the driest (2.3").