TODAY MAR01
TEMPERATURE25
HUMIDITY68
PRESSURE30.38
WIND COND.80 7.6
  • 4724Tue
  • 4727Wed
  • 5127Thu
  • 4829Fri
  • 5334Sat
daynightWeather update from Spencer, Spencer Municipal Airport at

Key findings

  • The highest monthly average temperature in Hartley for July is 74 degrees
  • The lowest monthly average temperature in Hartley for January is 17 degrees
  • The most monthly precipitation in Hartley occurs in June with 5 inches
  • The air quality index in Hartley is 30% better than the national average
  • The pollution index in Hartley is 85% better than the national average

Compare Hartley, IA Weather

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      Hartley 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
      January8°F27°F17°F0.3"
      February10°F30°F19°F0.5"
      March26°F46°F34°F1.2"
      April36°F61°F47°F2.9"
      May48°F73°F59°F4.0"
      June58°F82°F70°F5.0"
      July62°F86°F74°F3.2"
      August59°F82°F70°F4.3"
      September51°F77°F63°F2.9"
      October39°F63°F49°F2.3"
      November25°F48°F36°F0.9"
      December12°F30°F21°F0.8"

      Hartley 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.
      IndexHartleyIowaNational
      Air quality index353950
      Pollution index769,6971,643,8365,066,862

      Hartley air quality information

      MeasurementTotal
      Days measured364
      Days with good air quality322
      Days with moderate air quality42
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Hartley air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.010%
      Carbon Tetrachloride0.001%
      Lead0.002%
      Mercury0.000%

      Average monthly Hartley temperature with heat index

      Hartley monthly precipitation with daily maximum

      Hartley monthly snow depth with daily maximum

      Hartley monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Sutherland, IA5953530%
      Primghar, IA9733530%
      Archer, IA1773530%
      Royal, IA4153530%
      Everly, IA6243530%
      Hartley, IA1,7173530%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Bowman, ND1,7173334%
      MacArthur, WV1,718295490%
      Montpelier, IN1,7183530%
      Pine Mountain Club, CA1,7166734%
      Gasport, NY1,7183922%
      Hartley, IA1,7173530%
      Source: The Hartley, IA 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.