TODAY NOV22
TEMPERATURE51
HUMIDITY39
PRESSURE102340
WIND COND.310 7.6
  • 5535Fri
  • 6552Sat
  • 7347Sun
  • 5534Mon
  • 5539Tue
daynightWeather update from Okmulgee, Okmulgee Municipal Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Winchester for July is 82.3 degrees
  • The lowest monthly average temperature in Winchester for January is 40.3 degrees
  • The most monthly precipitation in Winchester occurs in May with 12.5 inches
  • The air quality index in Winchester is 7% worse than the national average
  • The pollution index in Winchester is 426% worse than the national average

Compare Winchester, OK 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
      January30°F54°F40°F2.4"
      February33°F56°F43°F5.0"
      March43°F68°F54°F4.7"
      April51°F75°F62°F8.7"
      May59°F80°F68°F12.5"
      June69°F90°F79°F8.0"
      July71°F95°F82°F7.7"
      August70°F94°F81°F7.9"
      September62°F86°F73°F7.9"
      October51°F76°F62°F11.3"
      November41°F65°F52°F6.8"
      December32°F53°F41°F9.8"

      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.
      IndexWinchesterOklahomaNational
      Air quality index455542
      Pollution index14,334,0001,271,5332,726,193

      Winchester air quality

      MeasurementTotal
      Days measured365
      Days with good air quality249
      Days with moderate air quality114
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.010%
      Benzene0.190%
      Carbon Tetrachloride0.040%
      Lead0.170%
      Mercury0.090%

      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.
      Morris, OK1,739590.0%
      Okmulgee, OK11,768590.0%
      Glenpool, OK13,8364510.0%
      Kellyville, OK1,1794510.0%
      Beggs, OK1,3774510.0%
      Winchester, OK6924510.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Arivaca, AZ6923138.0%
      Aroma Park, IL6925510.0%
      Union, LA6924510.0%
      Camden, MI6923922.0%
      Stewartsville, MO6924314.0%
      Winchester, OK6924510.0%
      Source: The Winchester, OK 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.