|Average Summer Temperature (July)||41 degrees F (5 degrees C)|
|Maximum Summer Temperature||86 degrees F (30 degrees C)|
|Average Winter Temperature (February)||-4 degrees F (-20 degrees C)|
|Total Cloud Cover||54 % of year|
|Expected Days of Fog||115 days|
|Average Annual Rainfall||10 in. (25 cm)|
|Prevailing Winds at Barter Island||13 knots easterly|
The region provides a striking contrast betwen summer and winter. During the summer months temperatures are relatively warm (40 degrees F) and daylight is continuous. During the winter months temperatures drop well below zero degrees F and blowing snow fills in valleys and swales, resulting in the appearance of a vast, white wasteland.