TODAY MAY08
TEMPERATURE50
HUMIDITY37
PRESSURE29.97
WIND COND. 11.2
  • 5737Sun20%
  • 5533Mon20%
  • 5937Tue
  • 6342Wed
  • 6445Thu30%
daynightWeather update from Decorah at

Key findings

  • The highest monthly average temperature in Postville for July is 73 degrees
  • The lowest monthly average temperature in Postville for January is 19.3 degrees
  • The most monthly precipitation in Postville occurs in June with 4.3 inches
  • The air quality index in Postville is 30% better than the national average
  • The pollution index in Postville is 62% better than the national average

Compare Postville, IA Weather

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      Postville 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
      January13°F27°F19°F0.5"
      February14°F29°F21°F0.4"
      March29°F45°F36°F1.5"
      April40°F59°F48°F3.4"
      May50°F70°F60°F2.9"
      June61°F79°F69°F4.3"
      July65°F82°F73°F3.9"
      August62°F79°F70°F4.0"
      September54°F73°F63°F3.4"
      October43°F61°F51°F3.0"
      November31°F47°F38°F1.0"
      December18°F31°F24°F0.9"

      Postville 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.
      IndexPostvilleIowaNational
      Air quality index353950
      Pollution index1,904,1201,643,8365,066,862

      Postville air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality310
      Days with moderate air quality55
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Postville air quality information

      PollutantTotal
      Arsenic0.040%
      Benzene0.020%
      Carbon Tetrachloride0.001%
      Lead0.010%
      Mercury0.050%

      Average monthly Postville temperature with heat index

      Postville monthly precipitation with daily maximum

      Postville monthly snow depth with daily maximum

      Postville monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Monona, IA1,4952942%
      St. Olaf, IA1382942%
      Farmersburg, IA2782942%
      Waterville, IA1173530%
      Waukon, IA3,7863530%
      Postville, IA2,2813530%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Spencer, IN2,2814216%
      Parkside, PA2,281512%
      Mattawan, MI2,2823824%
      Shavertown, PA2,2803824%
      Henagar, AL2,2803922%
      Postville, IA2,2813530%
      Source: The Postville, 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.