Hot-summer humid continental

Ballwin, Missouri

St. Louis County, Missouri · Population 31k · 636 ft elevation

Living in Ballwin

Ballwin 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 42″ a year, and it sees only a dusting of snow (8″ a season).

Skies are sunny (63% of possible sunshine). Summers get sticky, with about 57 muggy days a year.

Air quality is poor: a median AQI of 55, with about 8 unhealthy-air days in the latest year.

Ballwin at a glance

Population
31k
Elevation
636 ft
Average daily high
66°F50th percentile
Average daily low
46°F52th percentile
Annual precipitation
42″44th percentile
Annual snowfall
8″43th percentile
Sunshine hours per year
2,821 hrs52th percentile
Median AQI
5593th percentile
Median home value
$353k66th percentile
Median rent
$1,386/mo62th percentile
Median household income
$121k85th percentile
Property tax rate
1.22%62th percentile
Top state income-tax rate
4.7%
Sales tax (state + local)
8.4%
Unemployment rate
2.2%
Homes with broadband
95%76th percentile
Walkability index
9.965th percentile
Average commute
25 min
Math proficiency (8th grade)
37%34th percentile
Reading proficiency (8th grade)
47%
Violent crime rate
52 per 100k15th percentile
Property crime rate
434 per 100k
Overall natural-hazard risk
9986th percentile
Outdoor access
4444th percentile
Public land within 10 miles
5%
Public land within 30 miles
3%
Mountain relief within 30 miles
361 ft

Climate by month

Average monthly weather in Ballwin, Missouri
MonthHighLowPrecipitationSnowSunshine
Jan40°F21°F2.6″4.2″159 hrs
Feb45°F25°F2.2″1.1″154 hrs
Mar55°F34°F3.6″0.3″195 hrs
Apr67°F45°F4.6″—241 hrs
May76°F56°F5.2″—277 hrs
Jun85°F65°F4.3″—324 hrs
Jul88°F69°F3.9″—336 hrs
Aug87°F67°F3.5″—307 hrs
Sep80°F58°F3.3″—272 hrs
Oct69°F46°F3.2″—225 hrs
Nov55°F35°F3.5″0.4″181 hrs
Dec44°F26°F2.5″2.1″150 hrs

Near Ballwin

Largest places in Missouri

Sources: NOAA climate normals, NASA POWER, EPA air quality, U.S. Census Bureau, FEMA, FBI, EPA walkability and EDFacts. Methodology