Romeoville (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 Romeoville, Illinois, United States of America. This average is based on long-term data collected between 1990 and 2020.
Monthly hours of sunshine
Seasonal sunshine in Romeoville varies. It peaks at 319 hours in July and drops to 107 hours in December. The total annual amount of sun is 2509 hours.
Daily hours of sunshine
For those who appreciate different seasons, Romeoville serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 10.6 hours of sunshine daily, and embrace the darker days in December, offering only 3.6 hours of daily sunlight.
Average percent of sunshine
On average the sun shines 69% of the time during the day in July, the highest percentage of any month. December has the lowest percentage at 37%.
Romeoville vs Major Cities: Sunshine Compared
Romeoville enjoys an average of 2509 hours of sunshine annually. Let’s compare this with some popular tourist destinations:
The city of Rome, Italy, experiences 2470 hours of sunshine annually, adding to its charm as a year-round tourist destination.
In contrast, Juneau, Alaska, receives only about 1523 hours of sunshine per year and is known for its very short days in winter and frequently overcast conditions.
Stockholm, Sweden, receives approximately 1907 hours of sunshine annually.
Perth, Australia, enjoys 3180 hours of sunshine annually, the highest among major Australian cities.
Related Climate Data for Romeoville
June, Romeoville’s wettest month, receives 108 mm (4.3 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 0°C (32°F).
For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Romeoville Precipitation page.
