About Stillwater, OK's Climate & Weather History

Stillwater, in Oklahoma, United States, is home to roughly 49,000 people in the Central Time Zone at 36.1°N latitude.

In 2025, Stillwater recorded an average annual temperature of 61°F. The hottest temperatures reached 98°F in July; the coolest were 2°F in February. Total precipitation for the year was 47 inches, with the wettest month being April. Snowfall for the year totaled approximately 3 inches.