TODAY NOV22
TEMPERATURE39
HUMIDITY76
PRESSURE101520
WIND COND.310 24.1
  • 4627Fri
  • 4935Sat
  • 5843Sun
  • 5323Mon30%
  • 3924Tue
daynightWeather update from Springfield - Abraham Lincoln Capital Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Petersburg for July is 76.6 degrees
  • The lowest monthly average temperature in Petersburg for January is 28.5 degrees
  • The most monthly precipitation in Petersburg occurs in June with 5.5 inches
  • The air quality index in Petersburg is 5% better than the national average
  • The pollution index in Petersburg is 85% better than the national average

Compare Petersburg, IL Weather

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      Petersburg 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
      January20°F38°F29°F2.1"
      February22°F41°F31°F1.9"
      March34°F56°F44°F2.9"
      April44°F68°F56°F4.3"
      May54°F77°F65°F4.5"
      June64°F86°F74°F5.5"
      July66°F88°F77°F4.3"
      August64°F86°F75°F3.2"
      September57°F81°F68°F3.7"
      October46°F69°F56°F3.7"
      November36°F55°F45°F2.5"
      December26°F41°F33°F2.8"

      Petersburg 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.
      IndexPetersburgIllinoisNational
      Air quality index404142
      Pollution index400,9053,148,6942,726,193

      Petersburg air quality

      MeasurementTotal
      Days measured360
      Days with good air quality287
      Days with moderate air quality73
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

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

      Average monthly Petersburg temperature with heat index

      Petersburg monthly precipitation with daily maximum

      Petersburg monthly snow depth with daily maximum

      Petersburg monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Greenview, IL9204020.0%
      New Holland, IL2574020.0%
      Pleasant Plains, IL7184020.0%
      Tallula, IL5404020.0%
      Kilbourne, IL3504020.0%
      Petersburg, IL2,5644020.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Premont, TX2,5643040.0%
      Fobes Hill, WA2,5644510.0%
      Cape Neddick, ME2,5634020.0%
      Glenwood, MN2,5633236.0%
      Pembroke, GA2,5653922.0%
      Petersburg, IL2,5644020.0%
      Source: The Petersburg, 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.