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Earlville, IL
Full City Profile · Illinois · LaSalle County County
2.9
/5.0
C+
Fair
2,015
Population
1,679/sq mi density
$62,763
Median Income
$26,134 per capita
$127,300
Home Value
$234,473 Zillow
$998
Median Rent
38.9% income on rent
48°F
Avg Temperature
275 sunny days/yr
63
Violent Crime/100K
1,511 property/100K
C+
Overall
2.9 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.8 / 5.0
$62,763 median income, 3.9% unemployment
A+
Affordability
5.0 / 5.0
$127,300 home value, $998/mo rent
F
Safety
1.0 / 5.0
63 violent crimes/100K
D
Education
1.7 / 5.0
8.4% bachelor's degree or higher
Earlville experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 20°F in January while summers reach 72°F in July. The area gets 275 sunny days per year. Annual precipitation totals 36.8 inches. The area receives 30.1 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
20°F Jan (-7°C)
72°F Jul (22°C)
| Annual Average | 47.8°F |
| 11% below US avg | |
| January Average | 20°F (-7°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 701 ft (214 m) |
| Area | 0.5 sq mi (1.2 km²) |
| Population Density | 1,679/sq mi |
| Coordinates | 41.5881°N, 88.9230°W |
| Timezone | America/Chicago |
| County | LaSalle County County |
| Nearest Airport | Illinois Valley Regional-Walter A Duncan Field (VYS) 20 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 86.1 / 100 |
| Social Vulnerability | 38.9 / 100 |
| Community Resilience | 90.7 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Moderate |
| Cold Wave | Relatively High |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 20°F (-7°C) | 1.5 in | Coldest |
| February | 25°F (-4°C) | 1.1 in | Driest |
| March | 37°F (3°C) | 2.6 in | |
| April | 49°F (9°C) | 3.7 in | |
| May | 61°F (16°C) | 3.9 in | |
| June | 70°F (21°C) | 4.2 in | Wettest |
| July | 72°F (22°C) | 3.9 in | Warmest |
| August | 71°F (22°C) | 3.9 in | |
| September | 64°F (18°C) | 3.8 in | |
| October | 52°F (11°C) | 2.6 in | |
| November | 39°F (4°C) | 2.8 in | |
| December | 26°F (-3°C) | 2.2 in |
Earlville has a seasonal temperature swing of 52°F / from 20°F in January to 72°F in July. Total annual precipitation is 36.1 inches, with June being the wettest month (4.2") and February the driest (1.1").