Average Monthly Sunshine in Janesville (WI)

The graphs on this page shows the average number of hours per month and per day that Janesville 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 Janesville, timing is key. In July, you can enjoy up to 308 hours of sunshine, while the shorter days of December provide just 107 hours. The total annual amount of sun is 2439 hours.

Daily hours of sunshine

In Janesville, summer days are longer and more sunny, with daily sunshine hours peaking at 10.3 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 3.6 hours.

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

Janesville enjoys an average of 2439 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.

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

Osaka, Japan, experiences 2010 hours of sunshine annually, with bright, sunny weather in spring and autumn.

In Brisbane, Australia, the annual sunshine averages 2999 hours, making it one of Australia’s sunniest cities.

Other climate information

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

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.