Current weather conditions temporarily unavailable!

Key findings

  • The highest monthly average temperature in Hillsboro for July is 75.1 degrees
  • The lowest monthly average temperature in Hillsboro for January is 24.7 degrees
  • The most monthly precipitation in Hillsboro occurs in May with 6.2 inches
  • The air quality index in Hillsboro is 42% better than the national average
  • The pollution index in Hillsboro is 91% better than the national average

Compare Hillsboro, IA Weather

      vs
      How would you rate the weather in Hillsboro?
      Write a review to give others more information about this area.
      How would you rate the air quality in Hillsboro?
      Write a review to give others more information about this area.
      See all Hillsboro poll results

      Hillsboro 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
      January17°F34°F25°F0.7"
      February18°F36°F26°F2.1"
      March33°F53°F41°F4.1"
      April43°F66°F53°F4.8"
      May53°F75°F63°F6.2"
      June63°F84°F73°F5.9"
      July65°F86°F75°F5.6"
      August63°F84°F73°F2.0"
      September55°F79°F65°F4.1"
      October44°F66°F54°F6.1"
      November33°F51°F41°F3.3"
      December22°F38°F30°F3.1"

      Hillsboro 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.
      IndexHillsboroIowaNational
      Air quality index293950
      Pollution index464,3331,643,8365,066,862

      Hillsboro air quality information

      MeasurementTotal
      Days measured120
      Days with good air quality101
      Days with moderate air quality19
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Hillsboro air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.010%
      Carbon Tetrachloride0.001%
      Lead0.320%
      Mercury0.000%

      Average monthly Hillsboro temperature with heat index

      Hillsboro monthly precipitation with daily maximum

      Hillsboro monthly snow depth with daily maximum

      Hillsboro monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Keosauqua, IA1,0292942%
      Farmington, IA9612942%
      St. Paul, IA1002942%
      Fairfield, IA9,9422942%
      Westwood, IA962942%
      Hillsboro, IA2282942%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Ensign, KS2281570%
      Bolivia, NC2283432%
      Weott, CA2282746%
      Port Costa, CA2284020%
      Buckhorn, NM2283726%
      Hillsboro, IA2282942%
      Source: The Hillsboro, 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.