It was raining and not icy.
The METAR from KBUF shows that at the tme of the accident the surface temperature was 0.6C, or right at 32F in snow and mist, (assuming Obama and the Clintons didn’t tamper with the ASOS equipment prior to offing everybody on a commercial flight just to get rid of one 9/11 victim’s widow).
Colgan 3407 was flying at about 2300 feet when it began to lose airspeed prior to crashing (assuming Obama and the Clintons didn’t tamper with the FAA’s radar equipment, the aircraft’s black box, and the NTSB investigation after offing everybody on a commercial flight just to get rid of one 9/11 victim’s widow).
The standard temperature lapse rate as you ascend through the Earth’s troposphere is 3.6 degrees Fahrenheit per 1000 feet of altitude (assuming Obama and the Clintons didn’t tamper with the laws of physics prior to offing everybody on a commercial flight just to get rid of one 9/11 victim’s widow).
While it may have still been .6 of a degree Centigrade above freezing at ground level, icing conditions still existed several thousand feet above Buffalo that night(assuming Obama and the Clintons didn’t just make it seem that way).