Rockwood, IL
Full City Profile · Illinois · Perry County County
4.1
/5.0
A
Great
15
Population
71/sq mi density
$56,250
Median Income
$28,200 per capita
55°F
Avg Temperature
A
Overall
4.1 / 5.0
Strong
A
Economy
4.1 / 5.0
$56,250 median income, 0.0% unemployment
A
Education
4.1 / 5.0
0.0% bachelor's degree or higher
Rockwood experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 31°F in January while summers reach 77°F in July. Annual precipitation totals 43.9 inches. The area receives 12.0 inches of snow annually.
Temperature
31°F Jan (-0°C)
77°F Jul (25°C)
| Annual Average | 55.0°F |
| 2% above US avg | |
| January Average | 31°F (-0°C) |
| July Average | 77°F (25°C) |
Geography
| Elevation | 491 ft (150 m) |
| Area | 0.1 sq mi (0.2 km²) |
| Population Density | 71/sq mi |
| Coordinates | 37.8371°N, 89.6918°W |
| Timezone | America/Chicago |
| County | Perry County County |
| Nearest Airport | Farmington Regional (FAM) 39 miles away |
Precipitation & Snow
Air Quality
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0492 ppm |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 46.2 / 100 |
| Social Vulnerability | 14.4 / 100 |
| Community Resilience | 79.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Relatively Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 31°F (-0°C) | 2.7 in | Coldest |
| February | 35°F (2°C) | 2.6 in | Driest |
| March | 44°F (7°C) | 3.6 in | |
| April | 55°F (13°C) | 4.9 in | |
| May | 65°F (18°C) | 5.4 in | Wettest |
| June | 74°F (23°C) | 4.3 in | |
| July | 77°F (25°C) | 4.0 in | Warmest |
| August | 75°F (24°C) | 3.1 in | |
| September | 68°F (20°C) | 3.1 in | |
| October | 56°F (14°C) | 3.1 in | |
| November | 44°F (7°C) | 4.0 in | |
| December | 35°F (2°C) | 3.0 in |
Rockwood has a seasonal temperature swing of 46°F / from 31°F in January to 77°F in July. Total annual precipitation is 43.9 inches, with May being the wettest month (5.4") and February the driest (2.6").