TODAY MAY12
TEMPERATURE61
HUMIDITY36
PRESSURE30.48
WIND COND.
  • 6745Thu
  • 6650Fri30%
  • 6652Sat30%40%
  • 7058Sun50%60%
  • 7357Mon60%50%
daynightWeather update from Mount Pleasant, Mount Pleasant Municipal Airport at

Key findings

  • The highest monthly average temperature in Winfield for July is 75.1 degrees
  • The lowest monthly average temperature in Winfield for January is 24.7 degrees
  • The most monthly precipitation in Winfield occurs in May with 6.2 inches
  • The air quality index in Winfield is 36% better than the national average
  • The pollution index in Winfield is 83% better than the national average

Compare Winfield, IA Weather

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      Winfield 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"

      Winfield 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.
      IndexWinfieldIowaNational
      Air quality index323950
      Pollution index871,2641,643,8365,066,862

      Winfield air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality300
      Days with moderate air quality65
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Winfield air quality information

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

      Average monthly Winfield temperature with heat index

      Winfield monthly precipitation with daily maximum

      Winfield monthly snow depth with daily maximum

      Winfield monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Rome, IA1642942%
      Mediapolis, IA1,5362942%
      Westwood, IA962942%
      Mount Pleasant, IA8,4912942%
      New London, IA1,9452942%
      Winfield, IA1,0683236%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Kaanapali, HI1,0681570%
      Maud, OK1,0683628%
      Caraway, AR1,0684510%
      Salcha, AK1,0683824%
      Tully, NY1,0683726%
      Winfield, IA1,0683236%
      Source: The Winfield, 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.