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St. Louis, MI
Full City Profile · Michigan · Gratiot County County
2.8
/5.0
C+
Fair
6,926
Population
2,099/sq mi density
$46,096
Median Income
$13,169 per capita
$115,700
Home Value
$158,260 Zillow
$865
Median Rent
30.3% income on rent
47°F
Avg Temperature
260 sunny days/yr
282
Violent Crime/100K
831 property/100K
C+
Overall
2.8 / 5.0
Fair overall score based on economy, affordability, safety and education
B+
Economy
3.7 / 5.0
$46,096 median income, 1.1% unemployment
A+
Affordability
5.0 / 5.0
$115,700 home value, $865/mo rent
F
Safety
1.0 / 5.0
282 violent crimes/100K
D
Education
1.5 / 5.0
6.8% bachelor's degree or higher
St. Louis experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 22°F in January while summers reach 71°F in July. The area gets 260 sunny days per year. Annual precipitation totals 34.5 inches. The area receives 39.3 inches of snow annually. Air quality is rated Good with a median AQI of 38.
Temperature
22°F Jan (-6°C)
71°F Jul (22°C)
| Annual Average | 47.0°F |
| 13% below US avg | |
| January Average | 22°F (-6°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 736 ft (224 m) |
| Area | 3.5 sq mi (9.1 km²) |
| Population Density | 2,099/sq mi |
| Coordinates | 43.4085°N, 84.6112°W |
| Timezone | America/Detroit |
| County | Gratiot County County |
| Nearest Airport | Mbs International (MBS) 28 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 38.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 54.1 / 100 |
| Social Vulnerability | 50.8 / 100 |
| Community Resilience | 85.3 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively High |
| Heat Wave | Very Low |
| Winter Weather | Relatively High |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | No Rating |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 22°F (-6°C) | 1.7 in | Coldest |
| February | 23°F (-5°C) | 1.3 in | Driest |
| March | 33°F (0°C) | 2.2 in | |
| April | 45°F (7°C) | 2.9 in | |
| May | 57°F (14°C) | 2.9 in | |
| June | 66°F (19°C) | 3.2 in | |
| July | 71°F (22°C) | 2.6 in | Warmest |
| August | 68°F (20°C) | 3.6 in | |
| September | 60°F (16°C) | 3.8 in | Wettest |
| October | 49°F (9°C) | 2.8 in | |
| November | 37°F (3°C) | 2.6 in | |
| December | 26°F (-3°C) | 2.1 in |
St. Louis has a seasonal temperature swing of 49°F / from 22°F in January to 71°F in July. Total annual precipitation is 31.6 inches, with September being the wettest month (3.8") and February the driest (1.3").