Rockton, IL
Full City Profile · Illinois · Winnebago County County
3.7
/5.0
B+
Good
8,238
Population
1,201/sq mi density
$109,333
Median Income
$43,523 per capita
$222,100
Home Value
$300,656 Zillow
$864
Median Rent
27.9% income on rent
45°F
Avg Temperature
65
Violent Crime/100K
827 property/100K
B+
Overall
3.7 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.9 / 5.0
$109,333 median income, 2.8% unemployment
A+
Affordability
5.0 / 5.0
$222,100 home value, $864/mo rent
F
Safety
1.0 / 5.0
65 violent crimes/100K
A
Education
4.1 / 5.0
38.2% bachelor's degree or higher
Rockton has a cool climate with an average annual temperature of 45°F (7°C). Winters average 18°F in January while summers reach 70°F in July. Annual precipitation totals 37.4 inches. The area receives 35.6 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
18°F Jan (-8°C)
70°F Jul (21°C)
| Annual Average | 45.4°F |
| 16% below US avg | |
| January Average | 18°F (-8°C) |
| July Average | 70°F (21°C) |
Geography
| Elevation | 726 ft (221 m) |
| Area | 2.2 sq mi (5.7 km²) |
| Population Density | 1,201/sq mi |
| Coordinates | 42.4471°N, 89.0631°W |
| Timezone | America/Chicago |
| County | Winnebago County County |
| Nearest Airport | Southern Wisconsin Regional (JVL) 12 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
| Good Days % | 69.0% |
| Unhealthy Days | 3 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0475 ppm |
| PM2.5 (Fine Particles) | 10.2 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 92.4 / 100 |
| Social Vulnerability | 38.9 / 100 |
| Community Resilience | 68.5 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Relatively High |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively High |
| Ice Storm | Relatively High |
| Drought | Relatively Low |
| Cold Wave | Relatively High |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 18°F (-8°C) | 1.6 in | Coldest |
| February | 22°F (-6°C) | 1.5 in | Driest |
| March | 33°F (0°C) | 2.1 in | |
| April | 45°F (7°C) | 3.7 in | |
| May | 56°F (13°C) | 4.3 in | |
| June | 66°F (19°C) | 5.6 in | Wettest |
| July | 70°F (21°C) | 3.4 in | Warmest |
| August | 68°F (20°C) | 4.1 in | |
| September | 61°F (16°C) | 3.8 in | |
| October | 49°F (9°C) | 2.8 in | |
| November | 35°F (2°C) | 2.4 in | |
| December | 24°F (-5°C) | 2.0 in |
Rockton has a seasonal temperature swing of 52°F / from 18°F in January to 70°F in July. Total annual precipitation is 37.4 inches, with June being the wettest month (5.6") and February the driest (1.5").