TODAY MAR19
TEMPERATURE28
HUMIDITY59
PRESSURE102170
WIND COND.240 11.2
  • 6030Tue
  • 4325Wed
  • 4534Thu30%
  • 5128Fri50%30%
  • 4730Sat
daynightWeather update from Galesburg Municipal Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Williamsfield for July is 74.7 degrees
  • The lowest monthly average temperature in Williamsfield for January is 24.4 degrees
  • The most monthly precipitation in Williamsfield occurs in September with 8.9 inches
  • The air quality index in Williamsfield is 3% better than the national average
  • The pollution index in Williamsfield is 37% better than the national average

Compare Williamsfield, IL Weather

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      Williamsfield 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
      January17°F34°F24°F3.4"
      February18°F36°F26°F3.6"
      March32°F52°F41°F3.5"
      April41°F65°F52°F6.9"
      May52°F74°F63°F7.1"
      June62°F83°F72°F7.9"
      July65°F86°F75°F8.4"
      August63°F84°F73°F7.4"
      September54°F78°F65°F8.9"
      October44°F66°F54°F5.8"
      November32°F52°F41°F4.0"
      December22°F37°F29°F4.5"

      Williamsfield 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.
      IndexWilliamsfieldIllinoisNational
      Air quality index414142
      Pollution index1,709,2303,148,6942,726,193

      Williamsfield air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality285
      Days with moderate air quality78
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality0

      Williamsfield air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.050%
      Carbon Tetrachloride0.040%
      Lead0.001%
      Mercury0.001%

      Average monthly Williamsfield temperature with heat index

      Williamsfield monthly precipitation with daily maximum

      Williamsfield monthly snow depth with daily maximum

      Williamsfield monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Wyoming, IL1,3954118.0%
      Maquon, IL1814118.0%
      Brimfield, IL7974118.0%
      La Fayette, IL1554118.0%
      Toulon, IL1,2914118.0%
      Williamsfield, IL5094118.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Napier Field, AL5093530.0%
      Bonanza, AR5093628.0%
      Bridgeport, CA5091374.0%
      Davenport, CA5093530.0%
      Falls Village, CT5093726.0%
      Williamsfield, IL5094118.0%
      Source: The Williamsfield, 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.