Yes, Lyon Beige Porcelain can be used for exterior applications in cold climates. Porcelain tiles are known for their durability and resistance to various weather conditions, including low temperatures. However, it is important to ensure that the tiles are installed correctly and according to the manufacturers recommendations to prevent any potential issues such as cracking or damage due to frost or freeze-thaw cycles. Additionally, it is advisable to choose a porcelain tile with a low water absorption rate to further enhance its performance in cold climates.