TODAY NOV21
TEMPERATURE30
HUMIDITY100
PRESSURE100680
WIND COND.230 14.8
  • 4339Fri20%50%
  • 4832Sat
  • 5040Sun
  • 5631Mon40%60%
  • 4226Tue
daynightWeather update from Bellefontaine Regional Airport at
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Weather Quick Facts

  • The highest monthly average temperature in De Graff for August is 73.7 degrees
  • The lowest monthly average temperature in De Graff for February is 24.7 degrees
  • The most monthly precipitation in De Graff occurs in January with 11.1 inches
  • The air quality index in De Graff is 7% worse than the national average
  • The pollution index in De Graff is 72% better than the national average

Compare De Graff, OH Weather

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      De Graff 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
      January22°F37°F29°F11.1"
      February17°F32°F25°F2.6"
      March31°F50°F39°F6.7"
      April39°F62°F50°F7.1"
      May48°F74°F61°F1.6"
      June61°F85°F73°F5.4"
      July61°F84°F73°F5.5"
      August63°F86°F74°F10.2"
      September56°F79°F67°F5.9"
      October47°F67°F57°F3.2"
      November33°F52°F43°F5.1"
      December22°F36°F29°F3.3"

      De Graff 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.
      IndexDe GraffOhioNational
      Air quality index454042
      Pollution index750,1784,472,3862,726,193

      De Graff air quality

      MeasurementTotal
      Days measured365
      Days with good air quality220
      Days with moderate air quality143
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.001%
      Benzene0.010%
      Carbon Tetrachloride0.002%
      Lead0.002%
      Mercury0.000%

      Average monthly De Graff temperature with heat index

      De Graff monthly precipitation with daily maximum

      De Graff monthly snow depth with daily maximum

      De Graff monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Belle Center, OH8623922.0%
      Huntsville, OH4923922.0%
      Port Jefferson, OH4343922.0%
      Jackson Center, OH1,5753922.0%
      Rushsylvania, OH4283922.0%
      De Graff, OH1,3974510.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Aptos Hills-Larkin Valley, CA1,3973530.0%
      Standish, MI1,3972648.0%
      Nipissing 10, ON1,397n/a 
      Descanso, CA1,3986428.0%
      Payson, IL1,3984118.0%
      De Graff, OH1,3974510.0%
      Source: The De Graff, OH 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.