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Key findings

  • The highest monthly average temperature in Herrick for August is 76 degrees
  • The lowest monthly average temperature in Herrick for January is 30 degrees
  • The most monthly precipitation in Herrick occurs in November with 11.8 inches
  • The air quality index in Herrick is 20% better than the national average
  • The pollution index in Herrick is 69% better than the national average

Compare Herrick, IL Weather

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      Herrick 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°F38°F30°F1.7"
      February25°F40°F32°F2.3"
      March36°F54°F44°F1.1"
      April46°F67°F55°F4.3"
      May55°F76°F64°F0.0"
      June66°F86°F75°F3.0"
      July66°F86°F75°F7.9"
      August66°F87°F76°F4.8"
      September59°F81°F69°F8.6"
      October47°F69°F57°F1.4"
      November36°F56°F46°F11.8"
      December25°F38°F31°F7.1"

      Herrick 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.
      IndexHerrickIllinoisNational
      Air quality index404150
      Pollution index1,561,3103,347,2955,066,862

      Herrick air quality information

      MeasurementTotal
      Days measured245
      Days with good air quality224
      Days with moderate air quality21
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Herrick air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.040%
      Carbon Tetrachloride0.010%
      Lead0.002%
      Mercury0.002%

      Average monthly Herrick temperature with heat index

      Herrick monthly precipitation with daily maximum

      Herrick monthly snow depth with daily maximum

      Herrick monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Oconee, IL1834020%
      Tower Hill, IL5994020%
      Bingham, IL614020%
      Ohlman, IL1134020%
      St. Elmo, IL1,2984020%
      Herrick, IL3584020%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Evaro, MT3584020%
      Laurel, IA3583726%
      Union Star, MO3584314%
      Union Valley, TX358512%
      Grays Prairie, TX3584118%
      Herrick, IL3584020%
      Source: The Herrick, 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.