Doesn't surprise me. The amount of water vapor that the air can hold decreases the colder the air is. This is why having a relative humidity of say 78% on a 80 degrees day means that there is a lot more water in the air then on a day with the same relative humidity but the temperture is only 20 degrees. I can't remember at what the actualy temp where the air is considered not able to hold anywater. I think it was either +5 or -5 F.
If you have no moisture in the air then there is no moisture to freeze to the wing. Being inland, Fairbanks doesn't have a problem that towns in Southeast Alaska or to a lesser extent Anchorage have, Ocean water fairly close to keep the temperture up and keep the air relativly humid. This is much more of a problem in southeast Ak. They have simular problems in Seattle but it is the headquaters and a major hub for them so it is convienit to stop the MD-80's there.
OBAMA-WORST PRESIDENT EVER....Even SKOORB would be better.