TODAY DEC22
TEMPERATURE59
HUMIDITY45
PRESSURE102300
WIND COND.160 22.3
  • 6757Mon30%
  • 6748Tue60%
  • 6655
  • 6947Thu60%30%
  • 6847Fri20%
daynightWeather update from Arlington Municipal Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Southwest for August is 86.3 degrees
  • The lowest monthly average temperature in Southwest for January is 47.4 degrees
  • The most monthly precipitation in Southwest occurs in October with 23.8 inches
  • The air quality index in Southwest is 21% worse than the national average
  • The pollution index in Southwest is 83% better than the national average

Compare Arlington, TX Weather

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      Southwest 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
      January39°F58°F47°F11.0"
      February43°F62°F51°F3.5"
      March51°F71°F60°F1.7"
      April58°F78°F67°F2.9"
      May65°F84°F74°F7.5"
      June74°F93°F83°F16.6"
      July76°F96°F86°F10.9"
      August77°F96°F86°F0.9"
      September70°F89°F79°F10.9"
      October59°F80°F69°F23.8"
      November50°F69°F58°F4.1"
      December41°F59°F49°F11.0"

      Southwest 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.
      IndexSouthwestArlingtonTexas
      Air quality index515152
      Pollution index453,692453,6922,009,300

      Southwest air quality

      MeasurementTotal
      Days measured365
      Days with good air quality181
      Days with moderate air quality155
      Days w/ poor A.Q. for sensitive groups28
      Days with unhealthy air quality1

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.005%
      Carbon Tetrachloride0.000%
      Lead0.003%
      Mercury0.000%

      Average monthly Southwest temperature with heat index

      Southwest monthly precipitation with daily maximum

      Southwest monthly snow depth with daily maximum

      Southwest monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Briaroaks, TX7183334.0%
      Edgecliff Village, TX3,0073334.0%
      Burleson, TX47,1513334.0%
      Westworth Village, TX2,7133334.0%
      Cross Timber, TX2883334.0%
      Arlington, TX397,269512.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Tampa, FL395,9124314.0%
      Tulsa, OK402,4414510.0%
      New Orleans, LA391,2494510.0%
      Wichita, KS390,5664020.0%
      Cleveland, OH383,33150= 100
      Arlington, TX397,269512.0%
      Source: The Southwest, Arlington, TX 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.