TODAY DEC12
TEMPERATURE68°F
HUMIDITY6%
PRESSURE30.21 inHg
WIND COND.30° 3.5 mph
  • 6743Wed
  • 6842Thu
  • 6543Fri
  • 6343Sat
  • 6241Sun
daynightWeather update from Las Vegas, McCarran International Airport, on 12 Dec 2:20 pm PST

Winchester 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
January23°F72°F49°F0.6"
February30°F76°F53°F0.8"
March36°F91°F60°F0.2"
April39°F98°F68°F0.0"
May51°F108°F80°F0.0"
June62°F111°F88°F0.0"
July73°F117°F95°F0.3"
August68°F110°F92°F0.2"
September55°F107°F84°F0.1"
October45°F96°F69°F0.5"
November30°F84°F60°F0.2"
December28°F72°F46°F0.4"

Did you know?

  • The highest monthly average temperature in Winchester for July is 95 degrees.
  • The lowest monthly average temperature in Winchester for December is 46 degrees.
  • The most monthly precipitation in Winchester occurs in February with 0.8 inches.
  • The air quality index in Winchester is 8% worse than the national average.
  • The pollution index in Winchester is 7% worse than the national average.

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Compare Winchester, NV Weather To Other Cities

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 index543850
Pollution index5,460,4304,358,4105,100,859

Winchester air quality information

MeasurementTotal
Days measured365
Days with good air quality157
Days with moderate air quality192
Days w/ poor A.Q. for sensitive groups15
Days with unhealthy air quality1

Winchester air quality information

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

City, StatePopulationAir Quality IndexNational Avg.
Enterprise, NV124,564548%
North Las Vegas, NV223,336548%
Sunrise Manor, NV187,647548%
Henderson, NV266,245548%
Paradise, NV223,182548%
Winchester, NV28,111548%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Oak Forest, IL28,1046020%
Wheeling, WV28,129476%
Crofton, MD28,140492%
Shaker Heights, OH28,0715510%
Savage, MN28,0554412%
Winchester, NV28,111548%
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.