Tulsa, OK – September 2025 brought hotter-than-normal conditions across eastern Oklahoma and northwest Arkansas, according to the National Weather Service in Tulsa.
Data from Tulsa, Fort Smith, and Fayetteville showed average temperatures running 1.6 to 2.7 degrees above normal last month. Fayetteville saw the sharpest departure, with both highs and lows exceeding averages by nearly three degrees.
According to the National Weather Service, precipitation totals varied widely. Fayetteville recorded 7.53 inches of rain—more than three inches above average—while Fort Smith measured 5.68 inches, about 1.6 inches above normal. Tulsa, however, finished slightly drier than average, with 3.62 inches of rainfall compared to the normal 3.85.
The month’s hottest readings were 97°F in Fort Smith on Sept. 16, 95°F in Tulsa on Sept. 17, and 93°F in Fayetteville on Sept. 16–17. The coolest nights dipped into the 50s, with Fayetteville reaching 49°F on Sept. 7–8. Heavy rain events were also noted, with Fayetteville logging nearly 3 inches in a single day late in the month.
With September behind, forecasters say attention now turns to October’s weather outlook as seasonal transitions begin.
This article was produced by a journalist and may include AI-assisted input. All content is reviewed for accuracy and fairness.
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