JUNEAU -- The National Weather Service said clear skies caused temperatures to reach record lows across southeast Alaska.

Low temperature readings at Juneau's airport broke a 66-year-old record for July 12 on Thursday morning, with the temperature falling to 38 degrees. The prior record, set in 1946, was 40 degrees.

The lowest new low, according to the weather service, was 36 degrees, and was recorded at two other Juneau-area reporting stations, and Hyder.

In all, 13 records were set, although some communities, like Juneau, Haines and Skagway, had multiple reporting stations recording records.