The above bar chart illiustrates a comparison of the wettest month on record for selected locations. As one can see...Huntsville Alabama leads the way with the most rainfall with 18.68 inches in December of 1990. Nashville has a ways to go to surpass the other locations. With almost half the month left and more rain forecast...it's not an unsurmountable task. May is normally Nashville's wettest month. Normal rainfall for May is 5.07 inches. So far May of 2010 is 10.65 inches above normal as of May 17th.
National Weather Service