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Earlville, IA
Full City Profile · Iowa · Delaware County County
3.1
/5.0
B
Good
864
Population
1,571/sq mi density
$71,125
Median Income
$34,303 per capita
$148,100
Home Value
$224,536 Zillow
$770
Median Rent
27.8% income on rent
46°F
Avg Temperature
260 sunny days/yr
145
Violent Crime/100K
1,114 property/100K
B
Overall
3.1 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.4 / 5.0
$71,125 median income, 1.1% unemployment
A+
Affordability
5.0 / 5.0
$148,100 home value, $770/mo rent
F
Safety
1.0 / 5.0
145 violent crimes/100K
D
Education
2.0 / 5.0
12.0% bachelor's degree or higher
Earlville experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 17°F in January while summers reach 72°F in July. The area gets 260 sunny days per year. Annual precipitation totals 38.6 inches. The area receives 34.7 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
17°F Jan (-8°C)
72°F Jul (22°C)
| Annual Average | 46.3°F |
| 14% below US avg | |
| January Average | 17°F (-8°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 1,000 ft (305 m) |
| Area | 0.6 sq mi (1.4 km²) |
| Population Density | 1,571/sq mi |
| Coordinates | 42.4827°N, 91.2701°W |
| Timezone | America/Chicago |
| County | Delaware County County |
| Nearest Airport | Monticello Regional (MXO) 19 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 49.8 / 100 |
| Social Vulnerability | 32.6 / 100 |
| Community Resilience | 90.7 / 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 | Relatively 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 | 17°F (-8°C) | 1.0 in | Coldest, Driest |
| February | 23°F (-5°C) | 1.1 in | |
| March | 35°F (2°C) | 2.2 in | |
| April | 48°F (9°C) | 3.2 in | |
| May | 60°F (16°C) | 3.9 in | |
| June | 69°F (21°C) | 4.5 in | Wettest |
| July | 72°F (22°C) | 4.1 in | Warmest |
| August | 70°F (21°C) | 4.5 in | |
| September | 62°F (17°C) | 4.0 in | |
| October | 51°F (10°C) | 2.5 in | |
| November | 36°F (2°C) | 2.2 in | |
| December | 22°F (-5°C) | 1.5 in |
Earlville has a seasonal temperature swing of 55°F / from 17°F in January to 72°F in July. Total annual precipitation is 34.4 inches, with June being the wettest month (4.5") and January the driest (1.0").