Sorry to hear that your trip has been delayed. The heat of the summer season will make it a more
difficult trip, but as long as the added heat is taken into account, I think you'll be ok.
I will be leaving NJ on my 3000+ trip back to AZ at the end of June, or early July. To try to avoid the extra
heat of that time of year, one of the things I am planning is to do more night driving along 'roads less traveled'.
I'm very aware of the negatives that come with driving at night, but if the heat of the day, or crowded roads
present too much 'extra' danger... that will likely be my plan.
My experiences on heavily traveled interstate roads as taught me to try to avoid the dangers posed by the increasing
numbers of distracted drivers. I believe I can deal much better accounting for the higher temperatures of summer
than I can the unpredictability and carelessness of people paying more attention to their smartphones, than to the road ahead.
I'll be happy to share the things I learn along my journey if I meet my schedule and make my drive before you do!