Average Monthly Sunshine in Harvey (IL)

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

Monthly hours of sunshine

If you're visiting Harvey, timing is key. In July, you can enjoy up to 319 hours of sunshine, while the shorter days of December provide just 107 hours. 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.

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

Harvey 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 Chicago, USA, the annual sunshine averages 2520 hours, contributing to its humid continental climate.

Beijing, China, has 2505 hours of sunshine annually, with clear, sunny days in winter.

Melbourne, Australia, has 2380 hours of sunshine annually, with its famous “four seasons in a day” weather pattern.

Other climate information

August, Harvey’s wettest month, receives 111 mm of rainfall and has a maximum daytime temperature of 28°C. During the driest month November you can expect a temperature of 10°C.

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