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Key findings

  • The highest monthly average temperature in Arco for July is 73 degrees
  • The lowest monthly average temperature in Arco for January is 24 degrees
  • The most monthly precipitation in Arco occurs in December with 1.6 inches
  • The air quality index in Arco is 46% better than the national average
  • The pollution index in Arco is 90% better than the national average

Compare Arco, ID Weather

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      Arco 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
      January14°F35°F24°F1.1"
      February20°F41°F30°F1.0"
      March27°F53°F39°F1.3"
      April31°F61°F46°F1.3"
      May37°F71°F54°F1.4"
      June45°F82°F64°F1.0"
      July52°F92°F73°F0.5"
      August49°F90°F70°F0.6"
      September42°F80°F60°F1.1"
      October33°F65°F48°F1.4"
      November24°F50°F36°F1.1"
      December16°F36°F25°F1.6"

      Arco 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.
      IndexArcoIdahoNational
      Air quality index273250
      Pollution index516,5142,232,2855,066,862

      Arco air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality344
      Days with moderate air quality21
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Arco air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.004%
      Carbon Tetrachloride0.000%
      Lead0.003%
      Mercury0.000%

      Average monthly Arco temperature with heat index

      Arco monthly precipitation with daily maximum

      Arco monthly snow depth with daily maximum

      Arco monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Butte City, ID982746%
      Moore, ID1382746%
      Arco, ID7802746%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Detroit, TX780325550%
      Greensburg, LA7803040%
      Lincoln, MT7804020%
      Algoma, MS7803922%
      Darlington, IN7804216%
      Arco, ID7802746%
      Source: The Arco, 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.