It's not just you. I've charged here in the summertime (P3D) and I was able to pull 117kW.
Now, even with a warm pack, I'm lucky to get 50kW max.
Not sure if the site was never optimized for cold weather, or if something is broken. I've called it in at least once, but Stall 2A has been out of service since at least September. Not sure how much attention this location gets.