TODAY DEC22
TEMPERATURE36
HUMIDITY99
PRESSURE
WIND COND.358 3.2
  • 4333Mon30%30%
  • 4027Tue90%40%
  • 383060%
  • 3931Thu90%60%
  • 4030Fri70%70%
daynightWeather update from Winchester at
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Weather Quick Facts

  • The highest monthly average temperature in Winchester for July is 77.4 degrees
  • The lowest monthly average temperature in Winchester for December is 33.6 degrees
  • The most monthly precipitation in Winchester occurs in March with 1.6 inches
  • The air quality index in Winchester is 31% better than the national average
  • The pollution index in Winchester is 24% worse than the national average

Compare Winchester, ID 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
      January28°F43°F36°F1.0"
      February30°F49°F39°F1.0"
      March35°F57°F45°F1.6"
      April39°F65°F51°F1.4"
      May46°F75°F60°F1.5"
      June53°F82°F67°F1.3"
      July60°F95°F77°F0.3"
      August59°F93°F76°F0.4"
      September51°F82°F66°F0.6"
      October42°F66°F53°F1.1"
      November33°F51°F42°F1.3"
      December27°F41°F34°F1.4"

      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.
      IndexWinchesterIdahoNational
      Air quality index293242
      Pollution index3,385,4102,063,7102,726,193

      Winchester air quality

      MeasurementTotal
      Days measured365
      Days with good air quality291
      Days with moderate air quality73
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.030%
      Benzene0.030%
      Carbon Tetrachloride0.020%
      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.
      Culdesac, ID3762942.0%
      Craigmont, ID5152942.0%
      Lapwai, ID1,2912942.0%
      Ferdinand, ID1312942.0%
      Sweetwater, ID2642942.0%
      Winchester, ID2362942.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Koliganek, AK2363138.0%
      Artois, CA236468.0%
      Tonyville, CA2366632.0%
      Denton, GA2362648.0%
      Bulpitt, IL2364020.0%
      Winchester, ID2362942.0%
      Source: The Winchester, ID 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.