TODAY MAR02
TEMPERATURE46
HUMIDITY58
PRESSURE30.29
WIND COND.170 16.6
  • 6236Wed
  • 5936Thu
  • 5334Fri
  • 5535Sat
  • 5943Sun
daynightWeather update from St. Louis Downtown Airport at

Key findings

  • The highest monthly average temperature in Southwest Garden for July is 79 degrees
  • The lowest monthly average temperature in Southwest Garden for January is 32 degrees
  • The most monthly precipitation in Southwest Garden occurs in April with 5.3 inches
  • The air quality index in Southwest Garden is 9% worse than the national average
  • The pollution index in Southwest Garden is 67% worse than the national average

Compare St. Louis, MO Weather

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      Southwest Garden 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
      January24°F43°F32°F1.8"
      February26°F45°F34°F1.6"
      March37°F59°F47°F3.7"
      April47°F70°F58°F5.3"
      May56°F78°F67°F4.8"
      June65°F88°F76°F4.4"
      July68°F90°F79°F3.9"
      August66°F89°F77°F3.1"
      September58°F82°F69°F4.2"
      October47°F71°F58°F3.1"
      November36°F58°F46°F2.8"
      December29°F45°F36°F3.1"

      Southwest Garden 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.
      IndexSouthwest GardenSt. LouisMissouri
      Air quality index545497
      Pollution index8,473,0508,473,0502,360,566

      Southwest Garden air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality134
      Days with moderate air quality221
      Days w/ poor A.Q. for sensitive groups8
      Days with unhealthy air quality2

      Southwest Garden air quality information

      PollutantTotal
      Arsenic0.020%
      Benzene0.070%
      Carbon Tetrachloride0.020%
      Lead0.010%
      Mercury0.010%

      Average monthly Southwest Garden temperature with heat index

      Southwest Garden monthly precipitation with daily maximum

      Southwest Garden monthly snow depth with daily maximum

      Southwest Garden monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Green Park, MO2,625548%
      Mehlville, MO29,749548%
      Sunset Hills, MO8,515548%
      East Carondelet, IL523548%
      Grantwood Village, MO1,013548%
      St. Louis, MO316,030548%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Riverside, CA318,6788978%
      Corpus Christi, TX320,0504216%
      Lexington-Fayette, KY311,5294216%
      Pittsburgh, PA305,3055612%
      Stockton, CA301,4434510%
      St. Louis, MO316,030548%
      Source: The Southwest Garden, St. Louis, 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.