Hi everyone, Thanks for all your help!
I will be moving it inside today and running it for a while to see if I can duplicate the problems in a more temperature normalized environment.
@tasosstr. My data lines are pretty short already. The chip lies next to pins 20/21 on the shield (I'm using a mega). My shield eagle schematic can be found here: GitHub - madvoid/LEMS_PCB They are the .brd and .sch files, though I can also upload pdfs if anyone wants them as well.
@gardner. Can you expound on that? I just finished an email conversation with someone from maxim and they said something along the lines that you did, though I did not completely understand it. I am using an established library, so maybe some other people have had this problem? If not, I am going through the library right now but since I don't really know what I'm looking for, I'm hoping the problem will jump out at me 