Grain Valley (MO) Sunshine Hours by Month

Sunshine is key to understanding how a place experiences its seasons. This page shows the total number of hours of direct sunlight per month and the average hours per day in Grain Valley, Missouri, United States of America. The figures are based on a 30-year period (1990–2020) to provide a reliable average.

Monthly hours of sunshine

Sunshine in Grain Valley varies greatly throughout the year. The sunniest month, July, reaches an impressive 330 hours, while December, the darkest month, offers only 147 hours. The total annual amount of sun is 2803 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 11.0 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 4.9 hours of sunlight per day.

Average percent of sunshine

On average the sun shines 73% of the time during the day in July, the highest percentage of any month. December has the lowest percentage at 49%.

Grain Valley enjoys an average of 2803 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

The city of Rome, Italy, experiences 2470 hours of sunshine annually, adding to its charm as a year-round tourist destination.

In contrast, London, UK, receives only about 1659 hours of sunshine per year, known for its frequently overcast and rainy skies.

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

In Tokyo, Japan, the average annual sunshine is 1930 hours, with sunny periods between rainy seasons.

June, Grain Valley’s wettest month, receives 122 mm (4.8 in) of rainfall and has a maximum daytime temperature of 30°C (86°F). During the driest month January you can expect a temperature of 4°C (39°F).

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