TODAY NOV21
TEMPERATURE39
HUMIDITY27
PRESSURE
WIND COND.210 11.2
  • 6643
  • 6844Fri
  • 7352Sat
  • 6747Sun20%
  • 6646Mon
daynightWeather update from Harry Reid International Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Winchester for July is 94.4 degrees
  • The lowest monthly average temperature in Winchester for December is 47.9 degrees
  • The most monthly precipitation in Winchester occurs in January with 0.6 inches
  • The air quality index in Winchester is 28% worse than the national average
  • The pollution index in Winchester is 100% worse than the national average

Compare Winchester, NV Weather

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      Winchester 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°F49°F0.6"
      February43°F66°F54°F0.5"
      March50°F75°F62°F0.2"
      April55°F82°F68°F0.2"
      May65°F91°F78°F0.1"
      June76°F102°F90°F0.0"
      July82°F107°F94°F0.3"
      August79°F104°F92°F0.5"
      September72°F96°F84°F0.4"
      October59°F83°F71°F0.5"
      November48°F71°F59°F0.2"
      December39°F59°F48°F0.5"

      Winchester 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.
      IndexWinchesterNevadaNational
      Air quality index543842
      Pollution index5,460,4302,601,9142,726,193

      Winchester 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 Winchester temperature with heat index

      Winchester monthly precipitation with daily maximum

      Winchester monthly snow depth with daily maximum

      Winchester monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Nellis AFB, NV3,770548.0%
      Summerlin South, NV28,716548.0%
      Enterprise, NV214,591548.0%
      North Las Vegas, NV247,248548.0%
      Sunrise Manor, NV198,187548.0%
      Winchester, NV36,302548.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Oak Creek, WI36,3213922.0%
      Richfield, MN36,253468.0%
      Elmont, NY36,245512.0%
      Benton, AR36,3604510.0%
      Calumet City, IL36,2295510.0%
      Winchester, NV36,302548.0%
      Source: The Winchester, 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.