When you last water your plants does do a LITTLE bit to speed/slow up the drying but truly not much... that being said, if you have more water IN your plant when you chop her, it WILL take longer to dry - but not by much. The only risk for mold is going to come from the conditions you're drying in. What you're trying to achieve - in other words, the PERFECT drying conditions are a temp of 60-degrees and a humidity of 60%.... since you're dealing with 90-degrees and 55% humidity, here's what I would suggest... trim off all the large fan leaves then chop and hang THE WHOLE PLANT (not individual stems). Make sure individual buds are not touching each other and also make sure you've got a fan moving air AROUND the plant (not pointed directly at the plant!) and make sure the area it's hanging in is dark... and I think you'll be good.
Good luck!