You are correct. October was a wet month in Bluffton.
According to Guy Verhoff, Pandora weather observer, 4.26 inches of rain fell in October. The normal average October precipitation is 2.27 inches.
At the same time, October was warmer than normal. This year's October's average temperature was 54 degrees. The normal average is 52.1 degrees.
October's average maximum temperature was 64.5 degrees and the average minimum temperature was 43.5 degrees.