I read some place that it was 290 below zero, but I'm not sure if that's what they measured, or that's what they were expecting. I did read, though, that they thought some of the "rocks" we were seing were probably ice.
Definitely jacket weather. With all the clouds, I thought perhaps surface temps might be a tad more balmy. It seems every rest stop in this solar system any further out than earth is an ice ball.