just curious as to why the first frost or first “freeze” occurs BEFORE the first snowfall. I know that the freeze or frost means that the air is dry and clear, and the first snow, obviously moist and wet,….. For example, here on Long island, New York the 1st freeze is around early-mid November, but the 1st snowfall doesn’t (usually) occur until December, a few weeks to a month later. Same thing in the spring, just opposite. ANyone have any idea as to why this is the case, or if it isn’t, really, not the case, either. More of a climatological question for those climatologists out there. Thanks!
This is due to the fact that frost only needs air temperature near ground level to be cold, while snow needs cold air up high and down low. Since you need more specific conditions for snowfall, a frost is likelier to occur first.