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Key findings

  • The highest monthly average temperature in Ohio for July is 73.7 degrees
  • The lowest monthly average temperature in Ohio for January is 22.8 degrees
  • The most monthly precipitation in Ohio occurs in November with 8 inches
  • The air quality index in Ohio is 100% better than the national average
  • The pollution index in Ohio is 59% better than the national average

Compare Ohio, IL Weather

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      Ohio 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°F32°F23°F3.9"
      February16°F34°F25°F2.5"
      March30°F49°F38°F3.6"
      April40°F64°F51°F5.7"
      May51°F75°F62°F7.1"
      June60°F83°F71°F7.2"
      July63°F85°F74°F7.6"
      August61°F83°F72°F7.2"
      September53°F78°F65°F6.0"
      October43°F65°F53°F4.0"
      November31°F51°F40°F8.0"
      December20°F36°F28°F4.2"

      Ohio 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.
      IndexOhioIllinoisNational
      Air quality index04150
      Pollution index2,097,7403,347,2955,066,862

      Ohio air quality information

      MeasurementTotal
      Days measured335
      Days with good air quality334
      Days with moderate air quality1
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Ohio air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.060%
      Carbon Tetrachloride0.000%
      Lead0.001%
      Mercury0.300%

      Average monthly Ohio temperature with heat index

      Ohio monthly precipitation with daily maximum

      Ohio monthly snow depth with daily maximum

      Ohio monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Arlington, IL1990100%
      Dover, IL1710100%
      Seatonville, IL3330100%
      La Moille, IL8390100%
      Malden, IL3090100%
      Ohio, IL4700100%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Tooleville, CA4706020%
      Bowen, IL4704118%
      Manorville, PA4703824%
      Potwin, KS4704020%
      Highland Holiday, OH470476%
      Ohio, IL4700100%
      Source: The Ohio, IL 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.