TODAY NOV25
TEMPERATURE62
HUMIDITY84
PRESSURE101220
WIND COND.230 13
  • 4934Tue
  • 5236Wed70%
  • 4423
  • 3920Fri
  • 3919Sat
daynightWeather update from Southern Illinois Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Anna for August is 79.7 degrees
  • The lowest monthly average temperature in Anna for February is 35.9 degrees
  • The most monthly precipitation in Anna occurs in November with 11.1 inches
  • The air quality index in Anna is 5% worse than the national average
  • The pollution index in Anna is 14% better than the national average

Compare Anna, IL Weather

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      Anna 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
      January30°F44°F36°F7.5"
      February28°F46°F36°F4.9"
      March38°F61°F49°F4.2"
      April45°F67°F56°F5.8"
      May55°F79°F67°F4.4"
      June65°F87°F76°F5.4"
      July66°F87°F76°F3.6"
      August69°F92°F80°F3.8"
      September60°F85°F71°F5.0"
      October48°F73°F59°F5.5"
      November38°F59°F48°F11.1"
      December28°F45°F36°F6.7"

      Anna 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.
      IndexAnnaIllinoisNational
      Air quality index444142
      Pollution index2,331,2203,148,6942,726,193

      Anna air quality

      MeasurementTotal
      Days measured364
      Days with good air quality261
      Days with moderate air quality103
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.010%
      Benzene0.030%
      Carbon Tetrachloride0.004%
      Lead0.002%
      Mercury0.260%

      Average monthly Anna temperature with heat index

      Anna monthly precipitation with daily maximum

      Anna monthly snow depth with daily maximum

      Anna monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Grand Tower, IL5894314.0%
      Cobden, IL1,0184412.0%
      Makanda, IL5414412.0%
      Cypress, IL2164412.0%
      East Cape Girardeau, IL4294412.0%
      Anna, IL4,1494412.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Lake Sarasota, FL4,1483824.0%
      Benton Heights, MI4,1513922.0%
      Park Rapids, MN4,1512942.0%
      Louisville, TN4,151468.0%
      Aldan, PA4,146512.0%
      Anna, IL4,1494412.0%
      Source: The Anna, 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.