This is another topic where the evidence can never be good enough to "prove" anything. It will always be subject to a huge amount of uncertainty.

In any event,

"Sea Surface Temperatures (SSTs) in the Atlantic's Main Development Region for hurricanes had their warmest May on record."
"This is the fourth straight record warm month, and the warmest anomaly measured for any month. The previous record warmest anomaly for the Atlantic MDR was 1.46°C, set last month. Third place goes to June 2005 and March 2010, with a 1.26°C anomaly."
http://www.wunderground.com/blog/JeffMasters/comment.html?entrynum=1503

None of this "proves" anything.

However, it does seem more likely than not that the earth is warming. It seems to me that the most likely reason for this warming is AGW.

Of course, that is my uneducated opinion, I could be wrong.