TODAY MAY28
TEMPERATURE84
HUMIDITY62
PRESSURE101290
WIND COND.180 5.4
  • 8768Tue40%60%
  • 8167Wed60%50%
  • 8269Thu40%30%
  • 8168Fri60%60%
  • 8470Sat40%30%
daynightWeather update from Mesquite, Mesquite Metro Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Sunnyvale for August is 83.9 degrees
  • The lowest monthly average temperature in Sunnyvale for January is 45.5 degrees
  • The most monthly precipitation in Sunnyvale occurs in May with 8.5 inches
  • The air quality index in Sunnyvale is 21% worse than the national average
  • The pollution index in Sunnyvale is 36% worse than the national average

Compare Sunnyvale, TX Weather

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      Sunnyvale 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
      January36°F58°F45°F5.2"
      February39°F62°F49°F4.8"
      March48°F70°F58°F3.6"
      April55°F77°F65°F3.9"
      May62°F83°F72°F8.5"
      June71°F92°F81°F6.3"
      July73°F95°F83°F4.0"
      August73°F96°F84°F4.1"
      September66°F89°F77°F2.2"
      October55°F80°F66°F4.6"
      November47°F68°F56°F3.4"
      December38°F58°F47°F7.0"

      Sunnyvale 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.
      IndexSunnyvaleTexasNational
      Air quality index515242
      Pollution index3,706,5402,009,3002,726,193

      Sunnyvale 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

      Sunnyvale air quality information

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

      Average monthly Sunnyvale temperature with heat index

      Sunnyvale monthly precipitation with daily maximum

      Sunnyvale monthly snow depth with daily maximum

      Sunnyvale monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      University Park, TX25,027512.0%
      McLendon-Chisholm, TX3,521512.0%
      Rockwall, TX45,168512.0%
      Combine, TX2,535512.0%
      Seagoville, TX16,726512.0%
      Sunnyvale, TX6,664512.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Church Hill, TN6,6644510.0%
      South Bay, FL6,6653628.0%
      Hamilton, AL6,6623922.0%
      Eatonton, GA6,6613824.0%
      Contra Costa Centre, CA6,6674020.0%
      Sunnyvale, TX6,664512.0%
      Source: The Sunnyvale, 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.