The first frost of the season occurs during October in most parts of the Korean Peninsula. However, some parts of the coastal areas and the southern region experience frost between November and December, with Jejudo, the last, in January. The last frost occurs during April in most places. In general, the later the frost begins, the earlier the frost stops forming. For instance,
the earliest days with the last frost occurs around January 27 in Seongsan, followed by Seogwipo (February 2), Gosan (February 5), and Busan (February 8). The latest frost occurs in Daegwal- lyeong around May 9, followed by Bonghwa, Jangsu, and Taebaek (April 30).
The first snow of the season falls around No- vember on average in most parts of the Korean
Peninsula. On average, the rst snowfall occurs in Daegwallyeong (November 2), followed by Tae- baek (November 11), Ulleungdo (November 13), and Baengnyeongdo (November 16). The latest rst snow occurs in Geoje (January 9), followed by other southern regions, Tongyeong (January 3), Pohang (December 23), and Changwon (Decem- ber 22). In most areas, the last snow of the season
is seen around March. The earliest days with last snow falls in Geoje (February 16), followed by Miryang (February 19), Tongyeong (February 21), and Changwon (February 22). While, Dae- gwallyeong experiences snow until April 17 on average.