Union (OK) 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 Union, Oklahoma, United States of America. Long-term data from 1990 to 2020 was used to calculate these averages.

Monthly hours of sunshine

Seasonal sunshine in Union varies. It peaks at 336 hours in July and drops to 161 hours in December. The total annual amount of sun is 2795 hours.

Daily hours of sunshine

In Union, summer days are longer and more sunny, with daily sunshine hours peaking at 11.2 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 5.4 hours per day.

Average percent of sunshine

On average the sun shines 75% of the time during the day in July, the highest percentage of any month. November has the lowest percentage at 52%.

Union enjoys an average of 2795 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

Athens, Greece, enjoys 2769 hours of sunshine each year, making it one of the sunniest destinations in the Mediterranean region.

In contrast, Reykjavík, Iceland, receives only about 1330 hours of sunshine per year, known for its frequently overcast and rainy skies.

In Shanghai, China, the annual average sunshine is 1780 hours, with cloudier weather in summer.

Perth, Australia, enjoys 3180 hours of sunshine annually, the highest among major Australian cities.

May, Union’s wettest month, receives 106 mm (4.2 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 10°C (50°F).

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