Hanover, IL
Full City Profile · Illinois · Jo Daviess County County
2.9
/5.0
C+
Fair
847
Population
756/sq mi density
$39,583
Median Income
$24,413 per capita
$86,200
Home Value
$119,762 Zillow
$751
Median Rent
37.3% income on rent
48°F
Avg Temperature
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
C
Economy
2.4 / 5.0
$39,583 median income, 7.1% unemployment
A+
Affordability
5.0 / 5.0
$86,200 home value, $751/mo rent
C+
Safety
2.5 / 5.0
0 violent crimes/100K
D
Education
1.7 / 5.0
9.0% bachelor's degree or higher
Hanover experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 19°F in January while summers reach 72°F in July. Annual precipitation totals 39.4 inches. The area receives 30.2 inches of snow annually. Air quality is rated Good with a median AQI of 36.
Temperature
19°F Jan (-7°C)
72°F Jul (22°C)
| Annual Average | 47.5°F |
| 12% below US avg | |
| January Average | 19°F (-7°C) |
| July Average | 72°F (22°C) |
Geography
| Elevation | 639 ft (195 m) |
| Area | 0.4 sq mi (1.1 km²) |
| Population Density | 756/sq mi |
| Coordinates | 42.2552°N, 90.2736°W |
| Timezone | America/Chicago |
| County | Jo Daviess County County |
| Nearest Airport | Dubuque Regional (DBQ) 24 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 36.0 |
| Rating | Good |
| Good Days % | 93.7% |
| Unhealthy Days | 1 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0465 ppm |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 51.3 / 100 |
| Social Vulnerability | 48.8 / 100 |
| Community Resilience | 59.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 19°F (-7°C) | 1.4 in | Coldest, Driest |
| February | 24°F (-5°C) | 1.7 in | |
| March | 36°F (2°C) | 2.3 in | |
| April | 47°F (9°C) | 3.9 in | |
| May | 59°F (15°C) | 4.3 in | |
| June | 69°F (20°C) | 5.8 in | Wettest |
| July | 72°F (22°C) | 4.7 in | Warmest |
| August | 70°F (21°C) | 4.0 in | |
| September | 62°F (17°C) | 3.9 in | |
| October | 51°F (10°C) | 3.0 in | |
| November | 37°F (3°C) | 2.4 in | |
| December | 25°F (-4°C) | 1.9 in |
Hanover has a seasonal temperature swing of 53°F / from 19°F in January to 72°F in July. Total annual precipitation is 39.4 inches, with June being the wettest month (5.8") and January the driest (1.4").