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Monticello, IA
Full City Profile · Iowa · Jones County County
3.2
/5.0
B
Good
4,055
Population
720/sq mi density
$67,788
Median Income
$37,935 per capita
$160,500
Home Value
$223,746 Zillow
$659
Median Rent
23.7% income on rent
47°F
Avg Temperature
246 sunny days/yr
154
Violent Crime/100K
1,308 property/100K
B
Overall
3.2 / 5.0
Good overall score based on economy, affordability, safety and education
A
Economy
4.4 / 5.0
$67,788 median income, 0.3% unemployment
A+
Affordability
5.0 / 5.0
$160,500 home value, $659/mo rent
F
Safety
1.0 / 5.0
154 violent crimes/100K
C+
Education
2.6 / 5.0
19.4% bachelor's degree or higher
Monticello experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 18°F in January while summers reach 72°F in July. The area gets 246 sunny days per year. Annual precipitation totals 40.2 inches. Air quality is rated Good with a median AQI of 43.
Temperature
18°F Jan (-8°C)
72°F Jul (22°C)
| Annual Average | 47.0°F |
| 13% below US avg | |
| January Average | 18°F (-8°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 246 days/yr |
Geography
| Elevation | 837 ft (255 m) |
| Area | 6.3 sq mi (16.4 km²) |
| Population Density | 720/sq mi |
| Coordinates | 42.2304°N, 91.1859°W |
| Timezone | America/Chicago |
| County | Jones County County |
| Nearest Airport | Monticello Regional (MXO) 1 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 32.7 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 78.9 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| 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 | 18°F (-8°C) | 1.0 in | Coldest, Driest |
| February | 23°F (-5°C) | 1.1 in | |
| March | 35°F (2°C) | 2.3 in | |
| April | 48°F (9°C) | 3.2 in | |
| May | 60°F (16°C) | 3.9 in | |
| June | 69°F (21°C) | 4.6 in | Wettest |
| July | 72°F (22°C) | 4.1 in | Warmest |
| August | 71°F (21°C) | 4.4 in | |
| September | 63°F (17°C) | 4.1 in | |
| October | 51°F (11°C) | 2.5 in | |
| November | 36°F (2°C) | 2.2 in | |
| December | 23°F (-5°C) | 1.5 in |
Monticello has a seasonal temperature swing of 55°F / from 18°F in January to 72°F in July. Total annual precipitation is 34.8 inches, with June being the wettest month (4.6") and January the driest (1.0").