There is no normal temperature; there are averages for those areas where instruments have been in place for a long enough period to be considered normal from shared experience.
"There is no normal temperature; there are averages for those areas where instruments have been in place for a long enough period to be considered normal from shared experience."
OK 5 degrees warmer than the expected value based on historic data if you don't like the term "normal." Any way you look at it the energy for hurricanes comes from the water and when the water is warmer there are more storms and stronger storms and the water is a record high temperatures for this time of year.
But that still doesn't mean that global warming caused this local effect.