Weather and Climate Conditions

Weather and Climate Conditions

The Coastal Plain area demonstrates a striking contrast between summer and winter. During the summer months temperatures are relatively warm (40 degrees) and daylight is continuous. During the winter months temperatures drop well below O degrees and blowing snow fills in valleys and swales, resulting in the appearance of a vast, white wasteland.


Average Summer Temperature (July)
Maximum Summer Temperature

Average Winter Temperature (Feb.)

Total Cloud Cover

Expected Days of Fog

Average Annual Rainfall

Prevailing Winds at Barter Island


41 degrees F (5 degrees C)
86 degrees F (30 degrees C)

-4 degrees F (-20 degrees C)

54% of year

115 days

10 in. (25 cm)

13 knots easterly