Average Monthly Sunshine in Arlington Heights (IL)

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

Monthly hours of sunshine

Seasonal sunshine in Arlington Heights 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

This means the city can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 10.6 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 3.6 hours of sunlight per day.

Arlington Heights’s total hours of sunshine compared to other major cities

Arlington Heights enjoys an average of 2520 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.

Toronto, Canada, sees around 2071 hours of sunshine each year, with especially long, bright summer days.

Oslo, Norway, receives approximately 1690 hours of sunshine annually.

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

Other climate information

June, Arlington Heights’s wettest month, receives 114 mm of rainfall and has a maximum daytime temperature of 26°C. During the driest month January you can expect a temperature of -1°C.

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