How Old Is A 18 Inch Garter Snake?
How Old Is A 18 Inch Garter Snake? Age Weight Length 1 year 3.7-4.5 ounces 14-17 inches 11⁄2 years 4.7-5.3 ounces 18-25 inches 2 years 5.3 ounces 18-30 inches How old are garter snakes? The average life span in the wild may only be 4-5 years however they can live twice as long in captivity.