G rant County, at 2,660 square miles, is the fourth largest county in Washington. Seattle is less than 130 miles to the west on Highway 90, Spokane is only 100 miles east, and Portland is 250 miles southwest of Grant County.
Grant County is part of a temperate desert climate.
The average temperature in the summer is 84 degrees F and the average in winter is 40 degrees. Average annual rainfall is 8.42 inches, and most days are sunny and bright. In fact, there are normally more than 300 sunny days each year in the county. Natural gas is available in some communities. All cities have municipal water and wastewater treatment capacity available for industrial growth.