All Countries
Lake St. Louis, MO
Full City Profile · Missouri
4.0
/5.0
A
Great
17,538
Population
2,051/sq mi density
$123,427
Median Income
$60,780 per capita
$375,300
Home Value
$393,315 Zillow
$1,608
Median Rent
21.5% income on rent
55°F
Avg Temperature
267 sunny days/yr
134
Violent Crime/100K
1,624 property/100K
A
Overall
4.0 / 5.0
Strong
A+
Economy
4.9 / 5.0
$123,427 median income, 3.0% unemployment
A+
Affordability
5.0 / 5.0
$375,300 home value, $1,608/mo rent
F
Safety
1.0 / 5.0
134 violent crimes/100K
A+
Education
5.0 / 5.0
49.5% bachelor's degree or higher
Lake St. Louis experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 29°F in January while summers reach 78°F in July. The area gets 267 sunny days per year. Annual precipitation totals 37.8 inches. The area receives 6.5 inches of snow annually. Air quality is rated Good with a median AQI of 41.
Temperature
29°F Jan (-2°C)
78°F Jul (26°C)
| Annual Average | 54.7°F |
| 1% above US avg | |
| January Average | 29°F (-2°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 267 days/yr |
Geography
| Elevation | 577 ft (176 m) |
| Area | 8.6 sq mi (22.1 km²) |
| Population Density | 2,051/sq mi |
| Coordinates | 38.7850°N, 90.7935°W |
| Timezone | America/Chicago |
| Nearest Airport | St Louis Lambert International (STL) 23 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 29°F (-2°C) | 1.8 in | Coldest, Driest |
| February | 34°F (1°C) | 2.1 in | |
| March | 44°F (7°C) | 3.4 in | |
| April | 55°F (13°C) | 3.7 in | |
| May | 64°F (18°C) | 4.3 in | Wettest |
| June | 73°F (23°C) | 3.5 in | |
| July | 78°F (26°C) | 3.9 in | Warmest |
| August | 76°F (24°C) | 3.2 in | |
| September | 68°F (20°C) | 3.2 in | |
| October | 57°F (14°C) | 3.0 in | |
| November | 45°F (7°C) | 3.2 in | |
| December | 34°F (1°C) | 2.6 in |
Lake St. Louis has a seasonal temperature swing of 49°F / from 29°F in January to 78°F in July. Total annual precipitation is 37.8 inches, with May being the wettest month (4.3") and January the driest (1.8").