I found a planting chart for Florida, and for central Florida it says to plant zucchini from Jan-Apr. Unfortunately I don't have any experience with vegetable gardening in Florida; as a result I don't know well they will grow planting them this time of year.

I'm concerned if I plant them now it'll be too hot when for them to grow well and get a decent harvest when they start to set blossoms/fruit, which will be in May. (temps in the 90's)

The type of zucchini I have is self-pollinating so that won't be a problem.