Lewis, IA
Full City Profile · Iowa · Montgomery County County
3.0
/5.0
B
Good
465
Population
912/sq mi density
$34,341
Median Income
$24,616 per capita
$60,700
Home Value
$156,533 Zillow
$638
Median Rent
23.4% income on rent
49°F
Avg Temperature
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
C+
Economy
2.8 / 5.0
$34,341 median income, 6.6% unemployment
A+
Affordability
5.0 / 5.0
$60,700 home value, $638/mo rent
F
Education
1.3 / 5.0
3.6% bachelor's degree or higher
Lewis experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 21°F in January while summers reach 75°F in July. Annual precipitation totals 37.1 inches. The area receives 27.3 inches of snow annually. Air quality is rated Good with a median AQI of 42.
Temperature
21°F Jan (-6°C)
75°F Jul (24°C)
| Annual Average | 49.3°F |
| 9% below US avg | |
| January Average | 21°F (-6°C) |
| July Average | 75°F (24°C) |
Geography
| Elevation | 1,168 ft (356 m) |
| Area | 0.5 sq mi (1.3 km²) |
| Population Density | 912/sq mi |
| Coordinates | 41.3064°N, 95.0843°W |
| Timezone | America/Chicago |
| County | Montgomery County County |
| Nearest Airport | Eppley Airfield (OMA) 42 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
| Good Days % | 76.8% |
| Unhealthy Days | 0 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0459 ppm |
| PM2.5 (Fine Particles) | 8.2 μg/m³ |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 33.7 / 100 |
| Social Vulnerability | 34.2 / 100 |
| Community Resilience | 72.0 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | No Rating |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| 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) | 0.9 in | Coldest, Driest |
| February | 25°F (-4°C) | 1.1 in | |
| March | 37°F (3°C) | 1.9 in | |
| April | 49°F (10°C) | 3.8 in | |
| May | 61°F (16°C) | 5.4 in | |
| June | 71°F (22°C) | 5.7 in | Wettest |
| July | 75°F (24°C) | 4.4 in | Warmest |
| August | 73°F (23°C) | 4.4 in | |
| September | 65°F (18°C) | 3.4 in | |
| October | 52°F (11°C) | 2.9 in | |
| November | 37°F (3°C) | 1.7 in | |
| December | 26°F (-3°C) | 1.5 in |
Lewis has a seasonal temperature swing of 54°F / from 21°F in January to 75°F in July. Total annual precipitation is 37.1 inches, with June being the wettest month (5.7") and January the driest (0.9").