Oklahoma City
With 19.48 inches of rainfall, May 2015 was by far Oklahoma City's record-wettest month since record keeping began in 1890. Across Oklahoma and Texas generally, there was record flooding in the latter part of the month 
When was the most rainfall for Oklahoma city?
May 2015
With 19.48 inches of rainfall, May 2015 was by far Oklahoma City's record-wettest month since record keeping began in 1890.
Oklahoma City