Average Monthly Sunshine in Willowbrook (IL)

The graphs on this page shows the average number of hours per month and per day that Willowbrook receives direct sunlight. The numbers are calculated over a 30-year period to provide a reliable average.

Monthly hours of sunshine

Seasonal sunshine in Willowbrook varies. It peaks at 319 hours in July and drops to 107 hours in December. The total annual amount of sun is 2520 hours.

Daily hours of sunshine

For those who appreciate different seasons, Willowbrook 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.

Willowbrook’s total hours of sunshine compared to other major cities

Willowbrook enjoys an average of 2520 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

In Lisbon, Portugal, there are approximately 2801 hours of sunshine annually, highlighting its warm and sunny Mediterranean climate.

In contrast, Brussels, UK, receives only about 1590 hours of sunshine per year, known for its frequently overcast and rainy skies.

Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 2520 hours of sunshine annually.

In Tokyo, Japan, the average annual sunshine is 1930 hours, with sunny periods between rainy seasons.

Other climate information

June, Willowbrook’s wettest month, receives 116 mm of rainfall and has a maximum daytime temperature of 27°C. During the driest month January you can expect a temperature of -0°C.

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