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Key findings

  • The highest monthly average temperature in Delafield for July is 70.3 degrees
  • The lowest monthly average temperature in Delafield for January is 20.8 degrees
  • The most monthly precipitation in Delafield occurs in June with 19.6 inches
  • The air quality index in Delafield is 26% better than the national average
  • The pollution index in Delafield is 252% worse than the national average

Compare Delafield, WI Weather

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      Delafield 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
      January15°F28°F21°F0.6"
      February15°F29°F22°F2.8"
      March27°F43°F34°F2.9"
      April37°F55°F45°F3.1"
      May47°F67°F56°F8.9"
      June56°F76°F66°F19.6"
      July61°F80°F70°F14.9"
      August60°F78°F69°F2.3"
      September53°F72°F61°F10.4"
      October42°F59°F50°F6.6"
      November31°F46°F38°F3.6"
      December20°F32°F26°F1.8"

      Delafield 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.
      IndexDelafieldWisconsinNational
      Air quality index376950
      Pollution index9,584,4302,842,4182,726,193

      Delafield air quality information

      MeasurementTotal
      Days measured203
      Days with good air quality191
      Days with moderate air quality12
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Delafield air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.090%
      Carbon Tetrachloride0.020%
      Lead0.010%
      Mercury0.020%

      Average monthly Delafield temperature with heat index

      Delafield monthly precipitation with daily maximum

      Delafield monthly snow depth with daily maximum

      Delafield monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Nashotah, WI1,4283726.0%
      Eagle, WI1,7603726.0%
      Lebanon, WI2513726.0%
      Palmyra, WI1,6603726.0%
      North Prairie, WI2,3913726.0%
      Delafield, WI7,2183726.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Oroville East, CA7,218468.0%
      Delphos, OH7,2163922.0%
      Rockland, ME7,2203628.0%
      Riverdale Park, MD7,221476.0%
      Bel Aire, KS7,2144020.0%
      Delafield, WI7,2183726.0%
      Source: The Delafield, WI 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.