TODAY DEC23
TEMPERATURE57
HUMIDITY49
PRESSURE102170
WIND COND.150 25.9
  • 6758Mon
  • 6750Tue70%20%
  • 6656
  • 6949Thu60%30%
  • 6848Fri20%
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Weather Quick Facts

  • The highest monthly average temperature in Northwest Dallas for August is 86.4 degrees
  • The lowest monthly average temperature in Northwest Dallas for January is 47.6 degrees
  • The most monthly precipitation in Northwest Dallas occurs in March with 6.1 inches
  • The air quality index in Northwest Dallas is 21% worse than the national average
  • The pollution index in Northwest Dallas is 36% worse than the national average

Compare Dallas, TX Weather

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      Northwest Dallas 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°F60°F48°F3.4"
      February42°F62°F51°F2.1"
      March50°F72°F60°F6.1"
      April57°F78°F67°F2.8"
      May67°F85°F75°F4.2"
      June75°F94°F84°F4.1"
      July77°F96°F86°F2.4"
      August78°F97°F86°F2.6"
      September70°F89°F79°F5.0"
      October58°F79°F68°F5.0"
      November50°F71°F59°F2.7"
      December39°F60°F48°F2.3"

      Northwest Dallas 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.
      IndexNorthwest DallasDallasTexas
      Air quality index515152
      Pollution index3,706,5403,706,5402,009,300

      Northwest Dallas 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
      Arsenic0.002%
      Benzene0.040%
      Carbon Tetrachloride0.010%
      Lead0.040%
      Mercury0.000%

      Average monthly Northwest Dallas temperature with heat index

      Northwest Dallas monthly precipitation with daily maximum

      Northwest Dallas monthly snow depth with daily maximum

      Northwest Dallas monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Horseshoe Bend, TX621512.0%
      Carrollton, TX137,319512.0%
      Arlington, TX397,269512.0%
      Grand Prairie, TX193,835512.0%
      Farmers Branch, TX42,659512.0%
      Dallas, TX1,338,846512.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Calgary, AB1,371,990n/a 
      San Diego, CA1,414,5456428.0%
      San Antonio, TX1,529,133492.0%
      Philadelphia, PA1,581,531512.0%
      Ottawa, ON1,058,126n/a 
      Dallas, TX1,338,846512.0%
      Source: The Northwest Dallas, Dallas, 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.