@sunnySkys - I had never heard of this point either. But will be now be using it for dinner conversation fun here in Greensboro, North Caroline.
In the winter, our temperature loves to hang right around the ice point and freezing point always leaving for fun predictions if there is going to be snow or not (a.k.a. if there is going to be school or not).
Often we end of having rain, and then it freezes over night and then changes to snow so to give the ice a covering. Then it begins to rain as it warms up, but the ice is still there - and now I know another reason why it does that - when it is at the ice point both the rain and ice can coexist!
So to me it makes a difference as to safety if you live in a place that hangs around the icepoint and the freezing point. You have to understand that just because it is raining does not mean there is not any ice - so we are always careful when walking and on the roads.