German Valley, IL
Full City Profile · Illinois · Stephenson County County
4.3
/5.0
A
Great
455
Population
968/sq mi density
$71,420
Median Income
$30,536 per capita
$118,300
Home Value
$228,622 Zillow
$775
Median Rent
23.3% income on rent
48°F
Avg Temperature
A
Overall
4.3 / 5.0
Strong
A
Economy
4.4 / 5.0
$71,420 median income, 1.7% unemployment
A+
Affordability
5.0 / 5.0
$118,300 home value, $775/mo rent
B
Education
3.4 / 5.0
30.1% bachelor's degree or higher
German Valley experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 20°F in January while summers reach 72°F in July. Annual precipitation totals 38.4 inches. The area receives 34.5 inches of snow annually.
Temperature
20°F Jan (-7°C)
72°F Jul (22°C)
| Annual Average | 47.7°F |
| 12% below US avg | |
| January Average | 20°F (-7°C) |
| July Average | 72°F (22°C) |
Geography
| Elevation | 824 ft (251 m) |
| Area | 0.2 sq mi (0.5 km²) |
| Population Density | 968/sq mi |
| Coordinates | 42.2143°N, 89.4846°W |
| Timezone | America/Chicago |
| County | Stephenson County County |
| Nearest Airport | Chicago/Rockford International (RFD) 20 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 73.9 / 100 |
| Social Vulnerability | 56.7 / 100 |
| Community Resilience | 68.6 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 20°F (-7°C) | 1.8 in | Coldest, Driest |
| February | 24°F (-5°C) | 1.8 in | |
| March | 35°F (2°C) | 2.3 in | |
| April | 47°F (8°C) | 3.9 in | |
| May | 59°F (15°C) | 4.4 in | |
| June | 69°F (21°C) | 5.3 in | Wettest |
| July | 72°F (22°C) | 4.3 in | Warmest |
| August | 70°F (21°C) | 3.6 in | |
| September | 63°F (17°C) | 4.1 in | |
| October | 50°F (10°C) | 2.6 in | |
| November | 37°F (3°C) | 2.5 in | |
| December | 26°F (-4°C) | 1.9 in |
German Valley has a seasonal temperature swing of 53°F / from 20°F in January to 72°F in July. Total annual precipitation is 38.4 inches, with June being the wettest month (5.3") and January the driest (1.8").