ClimateForecastNovemberDecember >>

Galesburg (IL) Climate by Month

The temperature in Galesburg can vary quite a bit throughout the year. Temperatures can be warm during the warmest months, and very cold during the cooler months. It is also known for its large amounts of rain/snowfall. Now, let’s break down all the climate details for a clearer picture.

Average day and night temperature

Visitors to Galesburg can expect significant temperature changes throughout the year. Typically, daytime temperatures range from a comfortable 29°C in July to a very cold -1°C in the coolest month, January. Nights are cooler, with temperatures generally dropping to -10°C, particularly during the colder months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Galesburg is known for its substantial rain/snowfall, with annual precipitation reaching 1069 mm. The climate in Galesburg shows significant variation throughout the year. Expect high rainfall in June, with an average of 150 mm of precipitation over 13 rainy days. In contrast, January offers drier and sunnier days, with around 40 mm of snowfall over 8 snowy days.

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

Sunshine over the year

For those who appreciate different seasons, Galesburg serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 10.1 hours of sunshine daily, and embrace the darker days in December, offering only 3.8 hours of daily sunlight.

Monthly hours of sunshine

Data from: Davenport, the United States of America (66 KM, 41 Miles).

Daily hours of sunshine

Data from: Davenport, the United States of America (66 KM, 41 Miles).

The best time of year to visit Galesburg 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 Galesburg?
    The hottest season / summer takes place in June, July, August and September.
  • When is winter in Galesburg?
    The coldest season / winter is in the following months: January, February and December.
  • Which is the warmest month in Galesburg?
    July has an average maximum temperature of 29°C and is the warmest month of the year.
  • Which is the coldest month in Galesburg?
    The coldest month is January with an average maximum temperature of -1°C.
  • Which is the wettest month in Galesburg?
    June tops the wettest month list with 150 mm of rainfall.
  • Which is the driest month in Galesburg?
    January is the driest month with 40 mm of precipitation.
  • Which is the sunniest month in Galesburg?
    July is the sunniest month with an average of 303 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.

    Forecast for Galesburg (IL)

    Sat   Nov 23
    6°C | 0°C
    S 11 km/h
    broken clouds and no rain

    broken clouds and no rain

    Sun   Nov 24
    13°C | 1°C
    S 18 km/h
    broken clouds and no rain

    broken clouds and no rain

    Mon   Nov 25
    9°C | -4°C
    NW 25 km/h
    partly cloudy and no rain

    partly cloudy and no rain