Heat pack or not? So Cal to Montana

Shipping tom and these are the temps I'm facing. What do you guys think?

So Cal
low 55
high 79

Montana
low 53
high 83

Well, I would consider using a cold pack as opposed to a heat pack in mid summer. Definately don't use heat right now though. Ultimately, it is your choice and my recommendations are just that.

Thanks for the input. I was leaning towards shipping without heat and I think thats what I'll go with. Just wanted to make sure since the lows are in the 50's.