Personally, I don't like science. Never trusted people in white coats. But if I can vaguely recall my 6th grade classes, I'm pretty sure that if a shallow pond is surrounded by snow, and currently being snowed on, then that pond will be close to 32 degrees F (F stands for freezing).
So, I noped out of the pond skim and went to a rugby and polo match in the same day (no joke). But apparently some dummies went and skimmed the pond anyway, and here is Danny's great video of it.