TODAY DEC19
TEMPERATURE41
HUMIDITY60
PRESSURE30.04
WIND COND.120 3.4
  • 5741Wed30%
  • 4431Thu60%
  • 4027Fri
  • 4630Sat
  • 4429Sun
daynightWeather update from St. Louis, Spirit Of St. Louis Airport at

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Ballwin Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January23°F44°F32°F2.1"
February25°F46°F35°F1.8"
March36°F60°F47°F3.7"
April46°F71°F58°F5.3"
May55°F78°F66°F4.5"
June65°F87°F76°F4.8"
July68°F90°F79°F2.9"
August66°F89°F77°F3.4"
September58°F82°F69°F3.9"
October46°F70°F57°F3.0"
November36°F59°F46°F2.8"
December27°F45°F35°F3.1"

Did you know?

  • The highest monthly average temperature in Ballwin for July is 79 degrees.
  • The lowest monthly average temperature in Ballwin for January is 32 degrees.
  • The most monthly precipitation in Ballwin occurs in April with 5.3 inches.
  • The air quality index in Ballwin is 20% worse than the national average.
  • The pollution index in Ballwin is 75% worse than the national average.

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Compare Ballwin, MO Weather To Other Cities

Ballwin air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
IndexBallwinMissouriNational
Air quality index609750
Pollution index8,870,2302,360,5665,066,862

Ballwin air quality information

MeasurementTotal
Days measured365
Days with good air quality99
Days with moderate air quality231
Days w/ poor A.Q. for sensitive groups33
Days with unhealthy air quality2

Ballwin air quality information

PollutantTotal
Arsenic0.180%
Benzene0.060%
Carbon Tetrachloride0.020%
Lead0.030%
Mercury0.120%

Average monthly Ballwin temperature with heat index

Ballwin monthly precipitation with daily maximum

Ballwin monthly snow depth with daily maximum

Ballwin monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Bella Villa, MO8466020%
Beverly Hills, MO4906020%
Byrnes Mill, MO2,8476020%
Chesterfield, MO47,7176020%
Cool Valley, MO1,2106020%
Ballwin, MO30,4316020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Westfield, NJ30,438536%
Algonquin, IL30,4133138%
Aiken, SC30,4034216%
Estero, FL30,4703334%
Clearfield, UT30,483492%
Ballwin, MO30,4316020%
Source: The Ballwin, MO weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.