sentences:  Historically a rural county with extensive agriculture, today Parke County's economy is supported by a labor force of approximately 8,050 workers.The unemployment rate in November 2011 was 9.6%.In recent years, average temperatures in Rockville have ranged from a low of in January to a high of in July, although a record low of was recorded in January 1994 and a record high of was recorded in July 1936.