TODAY JUL16
TEMPERATURE86
HUMIDITY65
PRESSURE29.95
WIND COND.130 13
  • 9979Thu
  • 9879Fri
  • 9777Sat
  • 9777Sun
  • 9678Mon
daynightWeather update from Dallas / Addison Airport at

Key findings

  • The highest monthly average temperature in Richardson for August is 87 degrees
  • The lowest monthly average temperature in Richardson for January is 47 degrees
  • The most monthly precipitation in Richardson occurs in October with 14.4 inches
  • The air quality index in Richardson is 3% worse than the national average
  • The pollution index in Richardson is 27% better than the national average

Compare Richardson, TX Weather

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      Richardson 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°F7.1"
      February42°F62°F51°F2.6"
      March51°F70°F60°F7.1"
      April58°F77°F67°F9.9"
      May66°F84°F74°F11.4"
      June75°F92°F83°F5.8"
      July77°F95°F86°F2.0"
      August78°F96°F87°F1.4"
      September71°F89°F80°F0.5"
      October60°F79°F69°F14.4"
      November50°F68°F58°F8.2"
      December40°F58°F48°F6.1"

      Richardson 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.
      IndexRichardsonTexasNational
      Air quality index515250
      Pollution index3,706,5404,642,9165,066,862

      Richardson air quality information

      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

      Richardson air quality information

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

      Average monthly Richardson temperature with heat index

      Richardson monthly precipitation with daily maximum

      Richardson monthly snow depth with daily maximum

      Richardson monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Addison, TX15,363512%
      Cockrell Hill, TX4,301512%
      Frisco, TX145,646512%
      Highland Park, TX8,986512%
      Lewisville, TX102,327512%
      Richardson, TX108,350512%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      The Woodlands, TX108,373524%
      Pueblo, CO108,3852060%
      Richmond, CA108,3034020%
      Murrieta, CA108,5838978%
      Antioch, CA108,6754510%
      Richardson, TX108,350512%
      Source: The Richardson, 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.