TODAY NOV21
TEMPERATURE38
HUMIDITY76
PRESSURE101020
WIND COND.320 42.5
  • 4330Fri
  • 4333Sat
  • 5034Sun
  • 4021Mon
  • 3422Tue
daynightWeather update from Dubuque Regional Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Galena for July is 72.1 degrees
  • The lowest monthly average temperature in Galena for January is 19.4 degrees
  • The most monthly precipitation in Galena occurs in July with 6.9 inches
  • The air quality index in Galena is 31% better than the national average
  • The pollution index in Galena is 75% better than the national average

Compare Galena, IL Weather

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      Galena 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
      January10°F29°F19°F1.4"
      February12°F32°F22°F1.9"
      March25°F47°F36°F2.3"
      April36°F62°F49°F4.9"
      May47°F72°F59°F4.5"
      June58°F81°F69°F5.3"
      July61°F84°F72°F6.9"
      August59°F81°F70°F4.2"
      September51°F76°F63°F3.2"
      October40°F63°F51°F3.4"
      November28°F49°F38°F2.2"
      December15°F33°F24°F2.5"

      Galena 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.
      IndexGalenaIllinoisNational
      Air quality index294142
      Pollution index673,7163,148,6942,726,193

      Galena air quality

      MeasurementTotal
      Days measured365
      Days with good air quality304
      Days with moderate air quality60
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.010%
      Carbon Tetrachloride0.002%
      Lead0.003%
      Mercury0.000%

      Average monthly Galena temperature with heat index

      Galena monthly precipitation with daily maximum

      Galena monthly snow depth with daily maximum

      Galena monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Sageville, IA652942.0%
      The Galena Territory, IL1,4242942.0%
      Elizabeth, IL9062942.0%
      St. Donatus, IA1042942.0%
      Hazel Green, WI9112942.0%
      Galena, IL3,1682942.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Homestead, PA3,1685612.0%
      Liberty, SC3,1684118.0%
      Wimberley, TX3,1684412.0%
      Netcong, NJ3,1673432.0%
      Cadiz, OH3,1693922.0%
      Galena, IL3,1682942.0%
      Source: The Galena, 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.