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Galena
Weather averages
ClimateForecastSeptemberOctober >>

Galena (IL) Climate by Month

The graphs below provide an overview of the climate in Galena (Illinois), the United States of America. They present long-term patterns and averages of weather conditions over a 30-year period.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Forecast for Galena (IL)

Fri   Sep 27
25°C | 11°C
NE 25 km/h
almost clear and no rain

almost clear and no rain

hourly forecast
Sat   Sep 28
26°C | 14°C
NE 18 km/h
almost clear and no rain

almost clear and no rain

hourly forecast
Sun   Sep 29
25°C | 13°C
NE 14 km/h
clear and no rain

clear and no rain

hourly forecast
5-Day Forecast 10-Day Forecast

The best time of year to visit Galena in the United States of America

During the months of May and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:

  • When is summer in Galena?
    The hottest season / summer takes place in June, July, August and September.
  • Which months have the greatest rainfall in Galena?
    Most rainfall (rainy season) is seen in June and July.
  • When is winter in Galena?
    The coldest season / winter is in the following months: January, February and December.
  • Which is the warmest month in Galena?
    July has an average maximum temperature of 28°C and is the warmest month of the year.
  • Which is the coldest month in Galena?
    The coldest month is January with an average maximum temperature of -2°C.
  • Which is the wettest month in Galena?
    June tops the wettest month list with 164 mm of rainfall.
  • Which is the driest month in Galena?
    January is the driest month with 27 mm of precipitation.
  • Which is the sunniest month in Galena?
    June is the sunniest month with an average of 307 hours of sunshine.

    • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

     

     

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