TODAY MAY20
TEMPERATURE68
HUMIDITY88
PRESSURE30.06
WIND COND.170 4.7
  • 8872Mon30%30%
  • 8972Tue30%30%
  • 9173Wed20%20%
  • 9273Thu20%20%
  • 9374Fri
daynightWeather update from Dallas / Addison Airport at

Richardson Average Weather

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
January25°F82°F50°Fn/a
February18°F84°F52°Fn/a
March23°F90°F61°Fn/a
April32°F99°F68°Fn/a
May46°F100°F76°Fn/a
June66°F100°F84°Fn/a
July70°F104°F86°Fn/a
August66°F102°F87°Fn/a
September55°F100°F80°Fn/a
October39°F93°F69°Fn/a
November28°F86°F60°Fn/a
December16°F86°F50°Fn/a

Did you know?

  • The highest monthly average temperature in Richardson for August is 87 degrees.
  • The lowest monthly average temperature in Richardson for January is 50 degrees.
  • The most monthly precipitation in Richardson occurs in January with 0 inches.
  • The air quality index in Richardson is 8% worse than the national average.
  • The pollution index in Richardson is 26% better than the national average.

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Compare Richardson, TX Weather To Other Cities

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 index545250
Pollution index3,706,5404,642,9165,066,862

Richardson air quality information

MeasurementTotal
Days measured365
Days with good air quality156
Days with moderate air quality176
Days w/ poor A.Q. for sensitive groups32
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.
Murphy, TX20,015548%
Sachse, TX23,329548%
The Colony, TX40,757548%
Addison, TX15,363548%
Cockrell Hill, TX4,301548%
Richardson, TX108,350548%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
The Woodlands, TX108,373524%
Pueblo, CO108,3852256%
Richmond, CA108,3034314%
Murrieta, CA108,5838570%
Antioch, CA108,6755714%
Richardson, TX108,350548%
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.