St. Lucas, IA
Full City Profile · Iowa · Winneshiek County County
3.9
/5.0
B+
Good
186
Population
744/sq mi density
$75,000
Median Income
$30,318 per capita
$112,500
Home Value
$175,819 Zillow
45°F
Avg Temperature
B+
Overall
3.9 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.5 / 5.0
$75,000 median income, 0.0% unemployment
A+
Affordability
5.0 / 5.0
$112,500 home value, /mo rent
C
Education
2.3 / 5.0
16.0% bachelor's degree or higher
St. Lucas has a cool climate with an average annual temperature of 45°F (7°C). Winters average 15°F in January while summers reach 71°F in July. Annual precipitation totals 38.8 inches. The area receives 41.1 inches of snow annually.
Temperature
15°F Jan (-9°C)
71°F Jul (21°C)
| Annual Average | 45.0°F |
| 17% below US avg | |
| January Average | 15°F (-9°C) |
| July Average | 71°F (21°C) |
Geography
| Elevation | 1,057 ft (322 m) |
| Area | 0.3 sq mi (0.7 km²) |
| Population Density | 744/sq mi |
| Coordinates | 43.0665°N, 91.9341°W |
| Timezone | America/Chicago |
| County | Winneshiek County County |
| Nearest Airport | Northeast Iowa Regional (CCY) 34 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 36.2 / 100 |
| Social Vulnerability | 12.2 / 100 |
| Community Resilience | 91.6 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Low |
| 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 | 15°F (-9°C) | 1.2 in | Coldest, Driest |
| February | 19°F (-7°C) | 1.2 in | |
| March | 32°F (0°C) | 2.0 in | |
| April | 45°F (7°C) | 4.0 in | |
| May | 57°F (14°C) | 4.8 in | |
| June | 67°F (20°C) | 6.3 in | Wettest |
| July | 71°F (21°C) | 4.9 in | Warmest |
| August | 68°F (20°C) | 4.4 in | |
| September | 61°F (16°C) | 3.8 in | |
| October | 48°F (9°C) | 2.9 in | |
| November | 34°F (1°C) | 1.9 in | |
| December | 22°F (-6°C) | 1.5 in |
St. Lucas has a seasonal temperature swing of 55°F / from 15°F in January to 71°F in July. Total annual precipitation is 38.8 inches, with June being the wettest month (6.3") and January the driest (1.2").