Great Falls (MT) Sunshine Hours by Month

To truly understand a climate, we must look at its sunshine. This page shows the total number of hours of direct sunlight per month and the average hours per day in Great Falls, Montana, United States of America. These values are calculated using 30 years of data (1990–2020) to ensure accuracy.

Monthly hours of sunshine

Seasonal sunshine in Great Falls varies. It peaks at 376 hours in July and drops to 108 hours in December. The total annual amount of sun is 2770 hours.

Daily hours of sunshine

In Great Falls, summer days are longer and more sunny, with daily sunshine hours peaking at 12.5 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 per day.

Great Falls enjoys an average of 2770 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.

In Seoul, South Korea, there are approximately 2133 hours of sunshine per year, mostly during spring and autumn.

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

May, Great Falls’s wettest month, receives 29 mm (1.1 in) of rainfall and has a maximum daytime temperature of 18°C (64°F). During the driest month March you can expect a temperature of 9°C (48°F).

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