Galesburg (IL) Sunshine Hours by Month

Sunshine plays a big role in understanding the climate of a city. This page shows the total number of hours of direct sunlight per month and the average hours per day in Galesburg, Illinois, United States of America. Long-term data from 1990 to 2020 was used to calculate these averages.

Monthly hours of sunshine

Sunshine in Galesburg varies greatly throughout the year. The sunniest month, July, reaches an impressive 303 hours, while December, the darkest month, offers only 115 hours. The total annual amount of sun is 2466 hours.

Daily hours of sunshine

Seasonal changes in sunshine hours are quite obvious in Galesburg. While July receives considerable daily sunshine with up to 10.1 hours, December marks the darkest time of the year, where sunshine is scarce with only 3.8 hours of sunlight per day.

Average percent of sunshine

On average the sun shines 66% of the time during the day in July, the highest percentage of any month. December has the lowest percentage at 40%.

Galesburg enjoys an average of 2466 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

Seville, Spain, enjoys an impressive 2920 hours of sunshine per year, making it an ideal destination even in winter.

In contrast, Reykjavík, Iceland, receives only about 1330 hours of sunshine per year, known for its frequently overcast and rainy skies.

In Shanghai, China, the annual average sunshine is 1780 hours, with cloudier weather in summer.

Adelaide, Australia, enjoys 2770 hours of sunshine annually, with long, sunny summers.

June, Galesburg’s wettest month, receives 100 mm (3.9 in) of rainfall and has a maximum daytime temperature of 27°C (81°F). During the driest month January you can expect a temperature of -1°C (30°F).

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Galesburg Precipitation page.