Average Monthly Sunshine in Merrillville (IN)

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

Monthly hours of sunshine

Sunshine in Merrillville varies greatly throughout the year. The sunniest month, July, reaches an impressive 319 hours, while December, the darkest month, offers only 107 hours. The total annual amount of sun is 2509 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.

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

Merrillville enjoys an average of 2509 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

In Barcelona, Spain, there are 2530 hours of sunshine annually and is a city that can be visited year-round.

Manchester, UK, experiences just around 1420 hours of sunshine annually.

The climate in San Francisco, USA, includes 3072 hours of sunshine annually, thanks to its mild coastal weather.

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

Other climate information

August, Merrillville’s wettest month, receives 110 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 Merrillville Precipitation page.