TODAY NOV18
TEMPERATURE57
HUMIDITY84
PRESSURE101560
WIND COND.160 5.4
  • 6958Mon60%90%
  • 6742Tue
  • 5234Wed20%20%
  • 4635Thu
  • 4731Fri
daynightWeather update from Centralia Municipal Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Walnut Hill for July is 77.8 degrees
  • The lowest monthly average temperature in Walnut Hill for January is 32 degrees
  • The most monthly precipitation in Walnut Hill occurs in April with 9.7 inches
  • The air quality index in Walnut Hill is 2% worse than the national average
  • The pollution index in Walnut Hill is 76% better than the national average

Compare Walnut Hill, IL Weather

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      Walnut Hill 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
      January25°F41°F32°F5.0"
      February26°F43°F34°F3.4"
      March38°F58°F47°F4.9"
      April47°F69°F57°F9.7"
      May57°F77°F66°F7.4"
      June66°F87°F76°F8.6"
      July68°F89°F78°F6.6"
      August66°F88°F76°F8.7"
      September58°F81°F68°F7.6"
      October47°F70°F58°F7.1"
      November37°F57°F46°F6.0"
      December30°F45°F36°F6.6"

      Walnut Hill 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.
      IndexWalnut HillIllinoisNational
      Air quality index434142
      Pollution index647,2803,148,6942,726,193

      Walnut Hill air quality

      MeasurementTotal
      Days measured344
      Days with good air quality269
      Days with moderate air quality74
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.001%
      Benzene0.020%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Walnut Hill temperature with heat index

      Walnut Hill monthly precipitation with daily maximum

      Walnut Hill monthly snow depth with daily maximum

      Walnut Hill monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Ashley, IL4714314.0%
      Kell, IL1424314.0%
      Odin, IL9994314.0%
      Hoyleton, IL5074314.0%
      Radom, IL1364314.0%
      Walnut Hill, IL1124314.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Mulat, FL1124118.0%
      Mitchell, GA112476.0%
      Goodell, IA1121570.0%
      Longford, KS1123236.0%
      Meadowbrook Farm, KY112492.0%
      Walnut Hill, IL1124314.0%
      Source: The Walnut Hill, 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.