Originally Posted by JLarson

I suggest Iceland or France. By now, the temperatures in Iceland will be falling into the low 40s/high 30s at night.

In France, it'll be around 72 as a high in the Normandy region.

Short of moving or travel, all I can recommend is sitting naked near a co-worker. It won't fix the heat problem, but it'll bother them, and sometimes that's a win.