Hot-summer humid continental
Lake St. Louis, Missouri
St. Charles County, Missouri · Population 18k · 558 ft elevation
Living in Lake St. Louis
Lake St. Louis has a hot-summer humid continental climate: hot summers (July highs around 88°F) and cold winters (January lows around 21°F).
Precipitation is wet at about 44″ a year, and it gets light snow (14″ a season).
Skies are sunny (62% of possible sunshine). Summers get sticky, with about 59 muggy days a year.
Air quality is moderate: a median AQI of 40, with about 5 unhealthy-air days in the latest year.
Lake St. Louis at a glance
- Population
- 18k
- Elevation
- 558 ft
- Average daily high
- 66°F50th percentile
- Average daily low
- 45°F47th percentile
- Annual precipitation
- 44″52th percentile
- Annual snowfall
- 14″50th percentile
- Sunshine hours per year
- 2,809 hrs50th percentile
- Median AQI
- 4038th percentile
- Median home value
- $375k69th percentile
- Median rent
- $1,608/mo72th percentile
- Median household income
- $123k86th percentile
- Property tax rate
- 1.17%60th percentile
- Top state income-tax rate
- 4.7%
- Sales tax (state + local)
- 8.4%
- Unemployment rate
- 4.5%
- Homes with broadband
- 97%89th percentile
- Walkability index
- 9.158th percentile
- Average commute
- 27 min
- Math proficiency (8th grade)
- 52%60th percentile
- Reading proficiency (8th grade)
- 56%
- Violent crime rate
- 106 per 100k33th percentile
- Property crime rate
- 348 per 100k
- Overall natural-hazard risk
- 9357th percentile
- Outdoor access
- 5555th percentile
- Public land within 10 miles
- 9%
- Public land within 30 miles
- 3%
- Mountain relief within 30 miles
- 394 ft
Climate by month
| Month | High | Low | Precipitation | Snow | Sunshine |
|---|---|---|---|---|---|
| Jan | 40°F | 21°F | 2.6″ | 4.1″ | 155 hrs |
| Feb | 45°F | 25°F | 2.4″ | 3.7″ | 156 hrs |
| Mar | 55°F | 34°F | 3.7″ | 1.7″ | 198 hrs |
| Apr | 67°F | 44°F | 4.7″ | 0.2″ | 237 hrs |
| May | 76°F | 54°F | 5.1″ | — | 272 hrs |
| Jun | 84°F | 64°F | 4.7″ | — | 318 hrs |
| Jul | 88°F | 68°F | 3.9″ | — | 343 hrs |
| Aug | 87°F | 66°F | 3.6″ | — | 309 hrs |
| Sep | 80°F | 57°F | 3.5″ | — | 277 hrs |
| Oct | 69°F | 46°F | 3.4″ | — | 219 hrs |
| Nov | 56°F | 35°F | 3.7″ | 0.8″ | 178 hrs |
| Dec | 44°F | 26°F | 3.1″ | 3.0″ | 146 hrs |
Near Lake St. Louis
- O'Fallon, MO · 93k
- Dardenne Prairie, MO · 13k
- Wentzville, MO · 46k
- St. Paul, MO · 3.3k
- Cottleville, MO · 5.8k
- Weldon Spring, MO · 5.3k
- St. Peters, MO · 58k
- Moscow Mills, MO · 3.6k
Largest places in Missouri
- Kansas City, MO · 508k
- St. Louis, MO · 293k
- Springfield, MO · 169k
- Columbia, MO · 127k
- Independence, MO · 122k
- Lee's Summit, MO · 103k
- St. Joseph, MO · 72k
- St. Charles, MO · 71k
Sources: NOAA climate normals, NASA POWER, EPA air quality, U.S. Census Bureau, FEMA, FBI, EPA walkability and EDFacts. Methodology