Just keep in mind those are temps at ETA so even if your high during the day are in the 50's it does not always mean the temps are high enough around 10.30 am, vice versa for summer shipping 95 at 3 pm does not mean at 10.30 am the animal cannot be received.
I go by those temps for the main hub (that the breeder will only know at the last minute) which is where the snake will be from about 10 pm to 5 am on average and eta at delivery which in most cases is 10.30 but could be later (up to 4.30) in remotes area (again something you find out when you ship)
So if you have someone that understands that about shipping you will be fine.