Models are too a lot of things, not just too snowy. Case in point, last year the gfs, accounting for the 3 runs per day, had philly over 100° more than 80x.  The Euro was better, but it still had them over 100 numerous times.  Philly reached 100 zero times last year.  A nws met tracks this on a Philly board, so im not making it up.  Too snowy. Too cold, but also yes, too hot.  I know some can't handle that last one.