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Key findings

  • The highest monthly average temperature in Firth for July is 70 degrees
  • The lowest monthly average temperature in Firth for January is 20 degrees
  • The most monthly precipitation in Firth occurs in May with 1.3 inches
  • The air quality index in Firth is 46% better than the national average
  • The pollution index in Firth is 29% better than the national average

Compare Firth, ID Weather

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      Firth 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
      January11°F29°F20°F0.8"
      February16°F35°F25°F0.4"
      March26°F49°F37°F0.9"
      April31°F60°F45°F1.1"
      May38°F69°F54°F1.3"
      June45°F80°F62°F0.9"
      July50°F90°F70°F0.4"
      August48°F88°F68°F0.6"
      September41°F77°F59°F1.2"
      October32°F61°F46°F1.3"
      November24°F46°F34°F0.7"
      December13°F31°F22°F0.8"

      Firth 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.
      IndexFirthIdahoNational
      Air quality index273250
      Pollution index3,578,5902,232,2855,066,862

      Firth 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

      Firth air quality information

      PollutantTotal
      Arsenic0.030%
      Benzene0.040%
      Carbon Tetrachloride0.010%
      Lead0.030%
      Mercury0.001%

      Average monthly Firth temperature with heat index

      Firth monthly precipitation with daily maximum

      Firth monthly snow depth with daily maximum

      Firth monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Blackfoot, ID11,8782746%
      Moreland, ID1,5202746%
      Groveland, ID1,0072746%
      Riverside, ID1,1142746%
      Ammon, ID14,7672746%
      Firth, ID4372746%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Savannah, NY4373726%
      Delphos, KS4373236%
      McFarland, KS4373236%
      Jacona, NM4374118%
      Industry, IL4372942%
      Firth, ID4372746%
      Source: The Firth, 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.