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Ste. Marie, IL
Full City Profile · Illinois · Richland County County
3.2
/5.0
B
Good
266
Population
240/sq mi density
$80,417
Median Income
$28,836 per capita
$103,900
Home Value
$170,826 Zillow
$263
Median Rent
21.9% income on rent
53°F
Avg Temperature
293 sunny days/yr
350
Violent Crime/100K
1,889 property/100K
B
Overall
3.2 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.6 / 5.0
$80,417 median income, 2.2% unemployment
A+
Affordability
5.0 / 5.0
$103,900 home value, $263/mo rent
F
Safety
1.0 / 5.0
350 violent crimes/100K
C
Education
2.2 / 5.0
14.8% bachelor's degree or higher
Ste. Marie experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 28°F in January while summers reach 75°F in July. The area gets 293 sunny days per year. Annual precipitation totals 43.5 inches. Air quality is rated Good with a median AQI of 43.
Temperature
28°F Jan (-2°C)
75°F Jul (24°C)
| Annual Average | 52.7°F |
| 2% below US avg | |
| January Average | 28°F (-2°C) |
| July Average | 75°F (24°C) |
| Sunny Days | 293 days/yr |
Geography
| Elevation | 475 ft (145 m) |
| Area | 1.1 sq mi (2.9 km²) |
| Population Density | 240/sq mi |
| Coordinates | 38.9300°N, 88.0277°W |
| Timezone | America/Chicago |
| County | Richland County County |
| Nearest Airport | Lawrenceville-Vincennes International (LWV) 25 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 46.7 / 100 |
| Social Vulnerability | 66.9 / 100 |
| Community Resilience | 88.3 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively 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 | 28°F (-2°C) | 2.3 in | Coldest, Driest |
| February | 33°F (0°C) | 2.4 in | |
| March | 43°F (6°C) | 4.0 in | |
| April | 54°F (12°C) | 4.0 in | |
| May | 64°F (18°C) | 4.3 in | Wettest |
| June | 73°F (23°C) | 4.0 in | |
| July | 75°F (24°C) | 4.1 in | Warmest |
| August | 75°F (24°C) | 3.5 in | |
| September | 68°F (20°C) | 3.2 in | |
| October | 56°F (14°C) | 2.9 in | |
| November | 44°F (7°C) | 3.9 in | |
| December | 33°F (1°C) | 3.4 in |
Ste. Marie has a seasonal temperature swing of 47°F / from 28°F in January to 75°F in July. Total annual precipitation is 42.0 inches, with May being the wettest month (4.3") and January the driest (2.3").