TODAY MAR01
TEMPERATURE
HUMIDITY80
PRESSURE30.35
WIND COND.20 9.4
  • 5626Tue
  • 5928Wed
  • 5932Thu
  • 5632Fri
  • 5937Sat
daynightWeather update from Atlantic at

Key findings

  • The highest monthly average temperature in Shelby for July is 78 degrees
  • The lowest monthly average temperature in Shelby for January is 24 degrees
  • The most monthly precipitation in Shelby occurs in August with 6.1 inches
  • The air quality index in Shelby is 20% better than the national average
  • The pollution index in Shelby is 14% better than the national average

Compare Shelby, IA Weather

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

      Shelby 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
      January14°F37°F24°F0.6"
      February16°F41°F27°F0.9"
      March29°F56°F41°F1.5"
      April40°F67°F53°F3.8"
      May50°F77°F63°F5.2"
      June62°F87°F74°F4.9"
      July66°F91°F78°F3.1"
      August64°F88°F75°F6.1"
      September55°F82°F67°F3.7"
      October42°F69°F54°F3.0"
      November29°F55°F41°F1.0"
      December17°F39°F27°F1.7"

      Shelby 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.
      IndexShelbyIowaNational
      Air quality index403950
      Pollution index4,349,9301,643,8365,066,862

      Shelby air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality283
      Days with moderate air quality82
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Shelby air quality information

      PollutantTotal
      Arsenic0.210%
      Benzene0.040%
      Carbon Tetrachloride0.004%
      Lead0.100%
      Mercury0.160%

      Average monthly Shelby temperature with heat index

      Shelby monthly precipitation with daily maximum

      Shelby monthly snow depth with daily maximum

      Shelby monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Harlan, IA5,0084020%
      Avoca, IA1,4784020%
      Neola, IA9784020%
      Oakland, IA1,5444020%
      Persia, IA2574020%
      Shelby, IA6544020%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Burke, TX6543628%
      Irvona, PA6544118%
      Ririe, ID6544314%
      Montcalm, WV653295490%
      Reardan, WA6554314%
      Shelby, IA6544020%
      Source: The Shelby, 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.