Dieterich, IL
Full City Profile · Illinois · Effingham County County
4.1
/5.0
A
Great
1,171
Population
855/sq mi density
$73,750
Median Income
$33,007 per capita
$201,200
Home Value
$245,292 Zillow
$658
Median Rent
25.0% income on rent
55°F
Avg Temperature
A
Overall
4.1 / 5.0
Strong
B+
Economy
3.9 / 5.0
$73,750 median income, 5.0% unemployment
A+
Affordability
5.0 / 5.0
$201,200 home value, $658/mo rent
B
Education
3.4 / 5.0
29.4% bachelor's degree or higher
Dieterich experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 30°F in January while summers reach 77°F in July. Annual precipitation totals 44.9 inches. The area receives 16.0 inches of snow annually. Air quality is rated Good with a median AQI of 41.
Temperature
30°F Jan (-1°C)
77°F Jul (25°C)
| Annual Average | 54.5°F |
| 1% above US avg | |
| January Average | 30°F (-1°C) |
| July Average | 77°F (25°C) |
Geography
| Elevation | 592 ft (180 m) |
| Area | 1.4 sq mi (3.5 km²) |
| Population Density | 855/sq mi |
| Coordinates | 39.0603°N, 88.3814°W |
| Timezone | America/Chicago |
| County | Effingham County County |
| Nearest Airport | Lawrenceville-Vincennes International (LWV) 46 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
| Good Days % | 90.4% |
| Unhealthy Days | 1 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0488 ppm |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 53.8 / 100 |
| Social Vulnerability | 23.0 / 100 |
| Community Resilience | 95.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| 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 Low |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 2.8 in | Coldest |
| February | 34°F (1°C) | 2.3 in | Driest |
| March | 43°F (6°C) | 3.2 in | |
| April | 55°F (13°C) | 4.8 in | |
| May | 65°F (18°C) | 4.9 in | |
| June | 74°F (23°C) | 5.4 in | Wettest |
| July | 77°F (25°C) | 4.4 in | Warmest |
| August | 75°F (24°C) | 3.3 in | |
| September | 68°F (20°C) | 2.9 in | |
| October | 57°F (14°C) | 4.1 in | |
| November | 44°F (7°C) | 3.9 in | |
| December | 34°F (1°C) | 2.8 in |
Dieterich has a seasonal temperature swing of 47°F / from 30°F in January to 77°F in July. Total annual precipitation is 44.9 inches, with June being the wettest month (5.4") and February the driest (2.3").