Germantown, IL
Full City Profile · Illinois · Clinton County County
4.2
/5.0
A
Great
1,268
Population
1,243/sq mi density
$83,661
Median Income
$44,675 per capita
$185,300
Home Value
$255,365 Zillow
$752
Median Rent
16.8% income on rent
56°F
Avg Temperature
A
Overall
4.2 / 5.0
Strong
A+
Economy
4.6 / 5.0
$83,661 median income, 1.8% unemployment
A+
Affordability
5.0 / 5.0
$185,300 home value, $752/mo rent
B
Education
3.1 / 5.0
26.0% bachelor's degree or higher
Germantown enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 30°F in January while summers reach 78°F in July. Annual precipitation totals 39.9 inches. The area receives 10.1 inches of snow annually.
Temperature
30°F Jan (-1°C)
78°F Jul (26°C)
| Annual Average | 55.7°F |
| 3% above US avg | |
| January Average | 30°F (-1°C) |
| July Average | 78°F (26°C) |
Geography
| Elevation | 436 ft (133 m) |
| Area | 0.4 sq mi (1.0 km²) |
| Population Density | 1,243/sq mi |
| Coordinates | 38.5553°N, 89.5412°W |
| Timezone | America/Chicago |
| County | Clinton County County |
| Nearest Airport | St Louis Regional (ALN) 36 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 65.6 / 100 |
| Social Vulnerability | 27.6 / 100 |
| Community Resilience | 88.8 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 2.6 in | Coldest |
| February | 35°F (2°C) | 2.3 in | Driest |
| March | 45°F (7°C) | 3.3 in | |
| April | 56°F (13°C) | 4.5 in | Wettest |
| May | 66°F (19°C) | 4.5 in | |
| June | 75°F (24°C) | 4.4 in | |
| July | 78°F (26°C) | 3.5 in | Warmest |
| August | 77°F (25°C) | 3.0 in | |
| September | 70°F (21°C) | 3.0 in | |
| October | 58°F (14°C) | 2.8 in | |
| November | 45°F (7°C) | 3.5 in | |
| December | 35°F (2°C) | 2.4 in |
Germantown has a seasonal temperature swing of 48°F / from 30°F in January to 78°F in July. Total annual precipitation is 39.9 inches, with April being the wettest month (4.5") and February the driest (2.3").