It's starting to get just about completely dark each night now in Fairbanks. Astronomical twilight was reached yesterday for the first time, and starting tomorrow each night will have more than 6 hours below the civil twilight limit.
In Barrow, nautical twilight begins today, i.e. a period each night when it's dark enough to need artificial lighting for normal outdoor activities.
Here's this morning's north-northeast view from the FAA webcam at Point Hope, at the western end of the Lisburne Peninsula. The sun is rising well around to the east now.