Temperature for September 1999
In September 1999 the average high temperature in Barter Island, AK was 36.8°F, and this was 0.0°F warmer than the average of 36.8°F. The hottest day in September 1999 was 11 September when the temperature reached 46.9°F. Overnight the average temperature in September is 29.5°F and in 1999 the average overnight temperature was 0.7°F warmer at 30.2°F.