Hmm, Maybe I was thinking in P5? Not sure, either way there isn't many especially among major Colleges.
Yeah I think if you push it back a month or so, you would be ok before it gets too hot in the south, with the playoffs being later in the summer and those like you said could be scheduled in evenings and are usually set in regions as well.
Also with so many student athletes for many sports I can see the possibility of other sports seasons being adjusted as well including Softball. Truthfully some of these sports are summer sports and we are trying to fit them into seasons that don't work. Times have changed on how people get around and how people stay and live on campus etc. when some of these seasons and rules were developed, its time to adjust things.
At the very least there could be some give and take on the start date. The sport will gain wider spread attention if more teams can compete better. That helps everyone.