How do these do in cold temps? Because there are holes in them, do they get icy?

Our Rugged Grip-Loc Tiles are perfect for outdoor use in all temperatures. They will not become brittle or crack or anything even in very cold weather. The holes in the tile allow for water to drain instead of a puddle which actually helps prevent ice! Rugged Grip-Loc Tiles also have tiny nodules along the top for added slip resistance.