Janesville (WI) Sunshine Hours by Month

The amount of sunshine is fundamental to comprehending a place's climate. This page shows the total number of hours of direct sunlight per month and the average hours per day in Janesville, Wisconsin, United States of America. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020.

Monthly hours of sunshine

Sunshine in Janesville varies greatly throughout the year. The sunniest month, July, reaches an impressive 308 hours, while December, the darkest month, offers only 107 hours. The total annual amount of sun is 2454 hours.

Daily hours of sunshine

For those who appreciate different seasons, Janesville serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 10.3 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 66% of the time during the day in July, the highest percentage of any month. November has the lowest percentage at 37%.

Janesville vs Major Cities: Sunshine Compared

Janesville enjoys an average of 2454 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

Seville, Spain, enjoys an impressive 2920 hours of sunshine per year, making it an ideal destination even in winter.

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

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

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

Related Climate Data for Janesville

June, Janesville’s wettest month, receives 99 mm (3.9 in) of rainfall and has a maximum daytime temperature of 26°C (79°F). During the driest month January you can expect a temperature of -2°C (28°F).

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