Mount Carroll, IL
Full City Profile · Illinois · Carroll County County
3.2
/5.0
B
Good
1,515
Population
758/sq mi density
$59,167
Median Income
$32,272 per capita
$88,800
Home Value
$154,650 Zillow
$749
Median Rent
22.7% income on rent
49°F
Avg Temperature
350
Violent Crime/100K
350 property/100K
B
Overall
3.2 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.0 / 5.0
$59,167 median income, 2.6% unemployment
A+
Affordability
5.0 / 5.0
$88,800 home value, $749/mo rent
F
Safety
1.0 / 5.0
350 violent crimes/100K
C+
Education
2.8 / 5.0
23.0% bachelor's degree or higher
Mount Carroll experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 21°F in January while summers reach 73°F in July. Annual precipitation totals 40.3 inches. The area receives 33.4 inches of snow annually.
Temperature
21°F Jan (-6°C)
73°F Jul (23°C)
| Annual Average | 48.5°F |
| 10% below US avg | |
| January Average | 21°F (-6°C) |
| July Average | 73°F (23°C) |
Geography
| Elevation | 793 ft (242 m) |
| Area | 2.0 sq mi (5.2 km²) |
| Population Density | 758/sq mi |
| Coordinates | 42.0948°N, 89.9769°W |
| Timezone | America/Chicago |
| County | Carroll County County |
| Nearest Airport | Dubuque Regional (DBQ) 43 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 39.0 / 100 |
| Social Vulnerability | 55.4 / 100 |
| Community Resilience | 69.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 21°F (-6°C) | 1.7 in | Coldest, Driest |
| February | 25°F (-4°C) | 1.8 in | |
| March | 37°F (3°C) | 2.5 in | |
| April | 48°F (9°C) | 3.9 in | |
| May | 60°F (15°C) | 4.6 in | |
| June | 69°F (21°C) | 5.5 in | Wettest |
| July | 73°F (23°C) | 4.9 in | Warmest |
| August | 71°F (22°C) | 3.9 in | |
| September | 63°F (17°C) | 3.7 in | |
| October | 51°F (11°C) | 3.0 in | |
| November | 38°F (3°C) | 2.6 in | |
| December | 26°F (-3°C) | 2.2 in |
Mount Carroll has a seasonal temperature swing of 52°F / from 21°F in January to 73°F in July. Total annual precipitation is 40.3 inches, with June being the wettest month (5.5") and January the driest (1.7").