Temperature for September
In Texarkana, AR during September the average high temperature is 86.8°F. The hottest day on record was September 4, 2000 when the temperature hit 108.0°F.

In Texarkana, AR during September the average high temperature is 86.8°F. The hottest day on record was September 4, 2000 when the temperature hit 108.0°F.
In September the average monthly rainfall in Texarkana, AR is 2.15 inches with rain usually falling on between 6 and 7 days. 1947 was the driest September with only 0.00 inches of rain falling, and 2009 was the wettest September with 12.48 inches of rain. The wettest single day in September was 25 September 2005 when 3.90 inches of rain fell.
There are thunderstorms on between 3 and 4 days in September.