When your challenge is selecting the best grass seed for use in a cold climate, your best options are:
Fine-leaf Fescue: (cool season) does not tolerate traffic, drought resistant, shade tolerant. Some varieties are more disease resistant (Aurora)
Kentucky Bluegrass: (cool season) most common cool season grass and the hardiest for cold weather. Fine texture, fills in bare spots quickly, requires more mowing, does not do well in shady areas and does not tolerate salt. Standout varieties include Adelphi, Award, Baron, Midnight, Nu Destiny and Touchdown.