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German Valley, IL

Full City Profile · Illinois · Stephenson County County

3.5 /5.0
B+ Good
455 Population 968/sq mi density
$71,420 Median Income $30,536 per capita
$118,300 Home Value $213,422 Zillow
$775 Median Rent 23.3% income on rent
49°F Avg Temperature 260 sunny days/yr
193 Violent Crime/100K 2,563 property/100K
B+
Overall
3.5 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.4 / 5.0
$71,420 median income, 1.2% unemployment
A+
Affordability
5.0 / 5.0
$118,300 home value, $775/mo rent
F
Safety
1.0 / 5.0
193 violent crimes/100K
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 49°F (9°C). Winters average 22°F in January while summers reach 74°F in July. The area gets 260 sunny days per year. Annual precipitation totals 37.2 inches. The area receives 37.1 inches of snow annually. Air quality is rated Good with a median AQI of 43.

Temperature

22°F Jan (-6°C) 74°F Jul (23°C)
Annual Average49.4°F
9% below US avg
January Average22°F (-6°C)
July Average74°F (23°C)
Sunny Days260 days/yr

Geography

Elevation824 ft (251 m)
Area0.2 sq mi (0.5 km²)
Population Density968/sq mi
Coordinates42.2143°N, 89.4846°W
TimezoneAmerica/Chicago
CountyStephenson County County
Nearest AirportChicago/Rockford International (RFD)
20 miles away

Precipitation & Snow

Annual Rainfall 37.2"
2% below US avg
Snowfall 37.1"
Wettest Month (Jun) 4.33"
Driest Month (Feb) 1.18"

Air Quality

AQI Median43.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively Low
Risk Score73.9 / 100
Social Vulnerability56.7 / 100
Community Resilience68.6 / 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)

Earthquake History

8 earthquakes (M2.5+) within 150 km since 1990. Strongest: M4.2. Most recent: M2.6 on Mar 15, 2025.

Jun 28, 2004 12 km NW of Dayton, Illinois M4.2 97 km
Feb 10, 2010 2 km NW of Lily Lake, Illinois M3.8 86 km
Sep 2, 1999 8 km W of Amboy, Illinois M3.5 55 km
Nov 4, 2013 1 km SSW of Lyons, Illinois M3.2 145 km
Jul 15, 2024 2 km WNW of Somonauk, Illinois M3.1 90 km
Mar 25, 2015 3 km WNW of Lake in the Hills, Illinois M2.9 92 km
Jun 10, 2013 4 km NNE of Virgil, Illinois M2.6 84 km
Mar 15, 2025 6 km W of Dwight, Illinois M2.6 150 km
Source: USGS (M2.5+, 1990–2025)

Tornado History

560 tornadoes (EF0+) within 100 km since 1950. Strongest: EF5. Total: 47 fatalities, 983 injuries.

Date Rating Distance Fatalities
Jun 7, 1984 EF5 93 km 9
Apr 9, 2015 EF4 43 km 2
Jul 3, 1983 EF4 99 km 0
Mar 29, 1981 EF4 71 km 0
Apr 21, 1967 EF4 47 km 24
Apr 11, 1965 EF4 91 km 6
Jun 16, 2014 EF3 88 km 0
Jan 7, 2008 EF3 57 km 0
Aug 18, 2005 EF3 79 km 1
Jun 17, 1992 EF3 74 km 0
Mar 13, 1990 EF3 95 km 0
May 8, 1988 EF3 74 km 0
Aug 5, 1979 EF3 23 km 0
Jun 30, 1977 EF3 81 km 0
Jun 20, 1974 EF3 70 km 1
Apr 16, 1967 EF3 50 km 0
Jan 24, 1967 EF3 44 km 0
Jan 24, 1967 EF3 49 km 0
Jul 15, 2024 EF2 55 km 0
Jun 22, 2024 EF2 67 km 0
Source: NOAA SPC (EF0+, 1950–2024)

Wildfire History

1 wildfire (100+ acres) within 100 km. Largest: COLD SPRINGS (552 ac, 2009).

Year Name Acres Distance
2009 COLD SPRINGS 552 52 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 22°F (-6°C) 1.3 in Coldest
February 23°F (-5°C) 1.2 in Driest
March 35°F (2°C) 2.4 in
April 47°F (8°C) 3.4 in
May 59°F (15°C) 3.8 in
June 68°F (20°C) 4.3 in Wettest
July 74°F (23°C) 3.7 in Warmest
August 70°F (21°C) 4.1 in
September 62°F (17°C) 3.8 in
October 50°F (10°C) 2.7 in
November 36°F (2°C) 2.5 in
December 24°F (-5°C) 1.9 in

German Valley has a seasonal temperature swing of 52°F / from 22°F in January to 74°F in July. Total annual precipitation is 35.1 inches, with June being the wettest month (4.3") and February the driest (1.2").

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