I should note that only one of the long-term climate sites in the Fairbanks area have a freeze yet:
Lows Saturday morning:
Eielson AFB: 33F
North Pole: 36F
College Observatory 38F aka UAF West Ridge
Fairbanks Airport: 40F
Lows this morning were similar or a little cooler.
Fairbanks airport kept a breeze most of the night and wound up with a min of 41F
College Observatory: 36F
North Pole: 33F
Goldstream Creek: 27F
Salcha River RAWS: 21F
Hillsides are way above freezing: 47F Saturday morning and 46F this morning here on Keystone Ridge; the CRN site near Fox had 44F Saturday morning and 41F this morning
Eielson did report a min of 30F, about 12 days earlier than average.
The long term Tok coop reported a min of 29F Saturday, the first freeze of the autumn and a week or so later than average.