TODAY NOV07
TEMPERATURE36
HUMIDITY51
PRESSURE
WIND COND.307 16.1
  • 5624Thu
  • 6026Fri
  • 6731Sat
  • 7334Sun
  • 7536
daynightWeather update from GUTHRIE at
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Weather Quick Facts

  • The highest monthly average temperature in Duncan for July is 87.4 degrees
  • The lowest monthly average temperature in Duncan for January is 45.7 degrees
  • The most monthly precipitation in Duncan occurs in January with 4.2 inches
  • The air quality index in Duncan is 12% better than the national average
  • The pollution index in Duncan is 67% better than the national average

Compare Duncan, AZ Weather

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      Duncan 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
      January35°F59°F46°F4.2"
      February40°F64°F51°F2.8"
      March41°F73°F57°F3.9"
      April47°F83°F65°F2.8"
      May58°F93°F76°F0.3"
      June66°F101°F85°F0.7"
      July73°F103°F87°F2.4"
      August72°F98°F84°F2.7"
      September65°F96°F81°F0.3"
      October54°F86°F69°F2.6"
      November43°F75°F58°F1.6"
      December31°F62°F46°F1.9"

      Duncan 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.
      IndexDuncanArizonaNational
      Air quality index375742
      Pollution index902,4359,766,0192,726,193

      Duncan air quality

      MeasurementTotal
      Days measured365
      Days with good air quality362
      Days with moderate air quality3
      Days w/ poor A.Q. for sensitive groups
      Days with unhealthy air quality

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.020%
      Carbon Tetrachloride0.001%
      Lead0.380%
      Mercury0.000%

      Average monthly Duncan temperature with heat index

      Duncan monthly precipitation with daily maximum

      Duncan monthly snow depth with daily maximum

      Duncan monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Franklin, AZ753726.0%
      York, AZ6303726.0%
      Virden, NM1743726.0%
      Duncan, AZ7123726.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Frankford, DE7123628.0%
      Medaryville, IN7123726.0%
      Littlefork, MN7123530.0%
      Dunkirk, OH7123922.0%
      Driscoll, TX7123040.0%
      Duncan, AZ7123726.0%
      Source: The Duncan, AZ 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.