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Trenton, IA
Full City Profile · Iowa · Jefferson County County
2.4
/5.0
C
Fair
37
Population
80/sq mi density
49°F
Avg Temperature
275 sunny days/yr
127
Violent Crime/100K
2,921 property/100K
C
Overall
2.4 / 5.0
Fair overall score based on economy, affordability, safety and education
F
Safety
1.0 / 5.0
127 violent crimes/100K
B+
Education
3.7 / 5.0
0.0% bachelor's degree or higher
Trenton experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 21°F in January while summers reach 74°F in July. The area gets 275 sunny days per year. Annual precipitation totals 37.9 inches. The area receives 25.2 inches of snow annually. Air quality is rated Good with a median AQI of 43.
Temperature
21°F Jan (-6°C)
74°F Jul (23°C)
| Annual Average | 49.3°F |
| 9% below US avg | |
| January Average | 21°F (-6°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 275 days/yr |
Geography
| Elevation | 715 ft (218 m) |
| Area | 0.5 sq mi (1.2 km²) |
| Population Density | 80/sq mi |
| Coordinates | 41.0660°N, 91.6395°W |
| Timezone | America/Chicago |
| County | Jefferson County County |
| Nearest Airport | Southeast Iowa Regional (BRL) 33 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 27.1 / 100 |
| Social Vulnerability | 62.3 / 100 |
| Community Resilience | 50.1 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 21°F (-6°C) | 1.3 in | Coldest |
| February | 27°F (-3°C) | 1.1 in | Driest |
| March | 39°F (4°C) | 2.5 in | |
| April | 51°F (11°C) | 3.4 in | |
| May | 62°F (17°C) | 4.4 in | |
| June | 71°F (22°C) | 4.1 in | |
| July | 74°F (23°C) | 4.5 in | Warmest, Wettest |
| August | 73°F (23°C) | 4.2 in | |
| September | 65°F (18°C) | 4.3 in | |
| October | 54°F (12°C) | 2.8 in | |
| November | 39°F (4°C) | 2.4 in | |
| December | 27°F (-3°C) | 1.8 in |
Trenton has a seasonal temperature swing of 53°F / from 21°F in January to 74°F in July. Total annual precipitation is 36.7 inches, with July being the wettest month (4.5") and February the driest (1.1").