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.
In addition, there are five state highways throughout the county. Seven major truck lines serve most of Grant County out of Moses Lake, and overnight delivery is available with 500 miles. Greyhound and Northwest Trailways provide long distance bus service, with Grant Transit Authority providing public transportation between most cities and towns in the county. Burlington Northern serves Quincy, Winchester, Ephrata and points north of there. Columbia Basin Railroad, serves the Moses Lake area and connects to Burlington Northern at Connell.