The mean annual temperature ranges from 38 to 44 degrees F., and mean annual precipitation ranges from 34 to 46 inches. The frost-free season ranges from 80 to 130 days. Elevation ranges from 120 to 2500 feet above mean sea level. These are the Bangor , Burnham , Chesuncook , Dixmont , Elliottsville , Howland , Monson , Penquis , Plaisted , Telos , Thorndike and Winnecook soils. The Bangor, Chesuncook, Dixmont, Howland, Plaisted, and Telos soils are better drained and are in higher positions on the landscape.
Burnham soils are wetter soils in depressions.
Elliottsville, Monson, Penquis, Thorndike and Winnecook soils are better drained, shallower to bedrock and are in higher positions on the landscapes. Permeability is moderate to moderately rapid in the subsurface, moderate to moderately slow in the upper part of the subsoil and slow or very slow in the lower part of the subsoil and in the substratum. Common tree species include red spruce, balsam fir, black spruce, northern white cedar, red maple, eastern white pine, eastern hemlock, and paper birch. A few areas are in hay or pastures. The series is of large extent.