TODAY NOV21
TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.175
  • 6647Fri
  • 6950Sat
  • 6347Sun20%
  • 6146Mon
  • 6147Tue
daynightWeather update from EW5967 Las Vegas at
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Weather Quick Facts

  • The highest monthly average temperature in Sun City Summerlin for July is 93.8 degrees
  • The lowest monthly average temperature in Sun City Summerlin for December is 46.1 degrees
  • The most monthly precipitation in Sun City Summerlin occurs in October with 8.6 inches
  • The air quality index in Sun City Summerlin is 28% worse than the national average
  • The pollution index in Sun City Summerlin is 100% worse than the national average

Compare Las Vegas, NV Weather

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      Sun City Summerlin 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
      January38°F58°F47°F6.1"
      February43°F63°F52°F3.9"
      March49°F73°F61°F1.0"
      April55°F80°F67°F0.6"
      May64°F91°F79°F0.2"
      June71°F99°F86°F0.5"
      July79°F107°F94°F1.7"
      August77°F102°F90°F2.7"
      September68°F93°F81°F3.4"
      October57°F81°F68°F8.6"
      November48°F71°F59°F1.8"
      December37°F57°F46°F2.9"

      Sun City Summerlin 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.
      IndexSun City SummerlinLas VegasNevada
      Air quality index545438
      Pollution index5,460,4305,460,4302,601,914

      Sun City Summerlin air quality

      MeasurementTotal
      Days measured365
      Days with good air quality154
      Days with moderate air quality206
      Days w/ poor A.Q. for sensitive groups5
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.070%
      Carbon Tetrachloride0.010%
      Lead0.040%
      Mercury0.001%

      Average monthly Sun City Summerlin temperature with heat index

      Sun City Summerlin monthly precipitation with daily maximum

      Sun City Summerlin monthly snow depth with daily maximum

      Sun City Summerlin monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Blue Diamond, NV200548.0%
      Paradise, NV193,150548.0%
      Winchester, NV36,302548.0%
      Enterprise, NV214,591548.0%
      Spring Valley, NV218,697548.0%
      Las Vegas, NV644,594548.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Oklahoma City, OK649,821484.0%
      Portland, OR650,3803824.0%
      Memphis, TN650,9104510.0%
      Nashville, TN667,0704510.0%
      Louisville, KY618,733492.0%
      Las Vegas, NV644,594548.0%
      Source: The Sun City Summerlin, Las Vegas, NV 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.