sentences:  The highest terrain consists of two rises in southeast Upland, at 950' (290m) ASL.According to the 2010 census, the county has a total area of , of which (or 99.80%) is land and (or 0.20%) is water.In recent years, average temperatures in Marion have ranged from a low of in January to a high of in July, although a record low of was recorded in January 1985 and a record high of was recorded in July 1936.