Average annual precipitation is 35 to 60 inches. Average January temperature is about 38 degrees F and average July temperature is about 62 degrees F. Average frost-free season is 160 to 200 days. These are the Cokedale , Thornton , and Wickersham soils. Cokedale soils are coarse silty over sandy or sandy- skeletal. Thornton soils have a regular decrease in organic carbon and are in a serpentinitic family.
Wickersham soils are coarse loamy over sandy or sandy-skeletal.
Samish soils are cleared and drained and used for cropland. Major crops are hay and pasture. Native vegetation is western redcedar, western hemlock, Douglas-fir, and western swordfern. Skagit County, Washington, about 1950. Partial laboratory data are available on this soil.