TODAY MAY26
TEMPERATURE72
HUMIDITY100
PRESSURE29.95
WIND COND.160 10.3
  • 8264Tue40%70%
  • 8165Wed30%70%
  • 7757Thu70%50%
  • 7352Fri
  • 7352Sat
daynightWeather update from Washington at
How would you rate the weather in Harper?
Write a review to give others more information about this area.
How would you rate the air quality in Harper?
Write a review to give others more information about this area.
See all Harper poll results

Harper 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°F24°F1.9"
February17°F34°F25°F2.4"
March31°F52°F40°F3.0"
April41°F65°F52°F4.3"
May53°F75°F63°F6.0"
June62°F84°F72°F4.4"
July65°F86°F75°F7.8"
August63°F83°F72°F4.4"
September54°F78°F65°F5.3"
October44°F66°F53°F5.8"
November32°F52°F41°F3.9"
December21°F37°F28°F4.0"

Did you know?

  • The highest monthly average temperature in Harper for July is 75 degrees.
  • The lowest monthly average temperature in Harper for January is 24 degrees.
  • The most monthly precipitation in Harper occurs in July with 7.8 inches.
  • The air quality index in Harper is 16% better than the national average.
  • The pollution index in Harper is 89% better than the national average.

Compare Harper, IA Weather To Other Cities

      vs

      Harper 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.
      IndexHarperIowaNational
      Air quality index423950
      Pollution index577,8381,643,8365,066,862

      Harper air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality244
      Days with moderate air quality120
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality

      Harper air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.010%
      Carbon Tetrachloride0.001%
      Lead0.090%
      Mercury0.000%

      Average monthly Harper temperature with heat index

      Harper monthly precipitation with daily maximum

      Harper monthly snow depth with daily maximum

      Harper monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Hayesville, IA424216%
      Kinross, IA534216%
      Ollie, IA1894216%
      South English, IA2994216%
      West Chester, IA914216%
      Harper, IA964216%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Leggett, CA962648%
      Marseilles, OH963040%
      Sheldon, ND963530%
      Point of Rocks, WY964216%
      McDonald, NC963040%
      Harper, IA964216%
      Source: The Harper, 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.