TODAY NOV21
TEMPERATURE30
HUMIDITY86
PRESSURE100710
WIND COND.250 9.4
  • 4239Fri20%50%
  • 4832Sat
  • 5039Sun
  • 5632Mon40%60%
  • 4226Tue
daynightWeather update from Delaware Municipal Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Radnor for July is 70.7 degrees
  • The lowest monthly average temperature in Radnor for January is 24.7 degrees
  • The most monthly precipitation in Radnor occurs in August with 8.6 inches
  • The air quality index in Radnor is 9% worse than the national average
  • The pollution index in Radnor is 21% better than the national average

Compare Radnor, OH Weather

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      Radnor 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°F34°F25°F3.1"
      February16°F36°F25°F3.1"
      March29°F50°F38°F4.2"
      April40°F65°F52°F7.0"
      May50°F74°F62°F5.1"
      June60°F81°F70°F5.3"
      July61°F81°F71°F4.8"
      August59°F81°F69°F8.6"
      September52°F78°F64°F5.3"
      October43°F67°F54°F7.0"
      November31°F51°F40°F4.4"
      December26°F42°F34°F4.5"

      Radnor 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.
      IndexRadnorOhioNational
      Air quality index464042
      Pollution index2,158,1804,472,3862,726,193

      Radnor air quality

      MeasurementTotal
      Days measured365
      Days with good air quality237
      Days with moderate air quality127
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.160%
      Benzene0.030%
      Carbon Tetrachloride0.003%
      Lead0.010%
      Mercury0.000%

      Average monthly Radnor temperature with heat index

      Radnor monthly precipitation with daily maximum

      Radnor monthly snow depth with daily maximum

      Radnor monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      New Bloomington, OH3453922.0%
      La Rue, OH5813922.0%
      Waldo, OH3624118.0%
      Marion, OH36,0114118.0%
      Ashley, OH1,6724118.0%
      Radnor, OH131468.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Lester, AL1312746.0%
      St. Paul, AR1314412.0%
      Genoa, CO1314510.0%
      Hartwick, IA1313922.0%
      Marne, IA1314020.0%
      Radnor, OH131468.0%
      Source: The Radnor, 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.