I worked in emergency management in south Florida for 15 years.
Andrew (first storm of season hence "A"ndrew) was in August
Charlie (first powerful storm of season) was August
I never saw a June or July hurricane in 30 years of south Florida.
The "season" runs from June 1 - Nov 30. And I never saw one in November either. As late as early October in the busiest of years.
Historically I'm sure you could find one outside of the months I have seen them but you may be going back 100 years.
As to the "predictions" they may as well be fortune tellers. They say a year in advance what the next season will be, revise it twice before season even starts, then revise it twice more during season, and sitll miss horribly. Yet the legislature gives in to these whack jobs and sets insurance rates by their crack predictions.
My observation is that the frigid temps (record cold winter in Florida this year) has the water at record cold temps. The fuel for every hurricane is hot water. I don't care if el nino is 5,000 degrees. If the water in the Gulf of Mexico and Atlantic Ocean are record cold as they are today, there is not going to be a hurricane unless or until the local waters warm up. It's still 10 degrees below normal here and we're quite pissed. We're supposed to be drinking rum runners on the beach watching the college girls shake the booty contest but it's too cold at 70 degrees. We like it 85 in the day and 75 at night.
Al Gore can kiss my butt!
If intrade is offering weather futures you may want to take the short side on the hurricane predictions. I don't know what their numbers are this year.