Mean annual temperature ranges from 47 to 52 degrees F., and mean annual precipitation ranges from 20 to 26 inches. The Grable and Haynie soils are on higher stream terraces. Moderately well drained. It is believed that the seasonal high water table was at a depth of 0.5 to 1 foot when these soils formed. Due to the damming of the Missouri River, the current depth to seasonal high water table is 2 to 4 feet.
Permeability is rapid.
Runoff is negligible. These soils are rarely to occasionally flooded for brief periods. Native vegetation commonly is big bluestem, little bluestem, and Indiangrass with a few cottonwood and willow trees. Other areas have been cleared for pasture or cropped to corn, soybeans, small grains, and alfalfa. Some areas are irrigated.