Owasso (OK) Weather & Climate: Best Time to Visit

The climate in Owasso is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a very warm 34°C (93°F) in July, the warmest time of the year, to a chilly 9°C (48°F) during cooler months like January.

At night, you can expect temperatures ranging from 23°C (73°F) in July to around -3°C (27°F) during January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Owasso has a notably wet climate with abundant precipitation, recording 1012 mm (40 in) of rain/snowfall per year. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, May it receives high rainfall, averaging 153 mm (6 in) of precipitation, recorded across 12 rainy days. In contrast, the driest month January brings less rainfall, with 24 mm (0.9 in) over 5 rainy days. For more details, please visit our Owasso Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in Owasso. While July receives considerable daily sunshine with up to 11.2 hours, December marks the darkest time of the year, where sunshine is scarce with only 5.4 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Owasso.

The city experiences its highest humidity in September, reaching 70%. In April, the humidity drops to its lowest level at 61%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year