hot, humid summers and mild to cool winters with occasional cold spells. The region, like much of Japan, experiences a one-month seasonal lag. The warmest month is August, which averages . The coolest month is January, averaging . The record low temperature was on January 13, 1876. The record high was on July 20, 2004. The record highest low temperature is , on August 12, 2013, making Tokyo one of only seven observation sites in Japan that have recorded a low temperature over . Annual rainfall averages nearly , with a wetter summer and a drier winter. The growing season in Tokyo lasts for about 322 days from around mid-February to early January. Snowfall is sporadic, and occurs almost annually. Tokyo often sees typhoons every year, though few are strong. The wettest month since records began in 1876 was October 2004, with of rain, including on the ninth of that month. The most recent of four months on record to observe no precipitation is December 1995. Annual precipitation has ranged from in 1984 to in 1938. Tokyo has experienced significant warming of its climate since temperature records began in 1876. The western mountainous area of mainland Tokyo, Okutama also lies in the humid subtropical climate (Köppen classification: Cfa). The climates of Tokyo's offshore territories vary significantly from those of the city. The climate of Chichijima in Ogasawara village is on the boundary between the tropical savanna climate (Köppen classification: Aw) and the tropical rainforest climate (Köppen classification: Af). It is approximately south of the Greater Tokyo Area, resulting in much different climatic conditions. Tokyo's easternmost territory, the island of Minamitorishima in Ogasawara village, is in the tropical savanna climate zone (Köppen classification: Aw). Tokyo's Izu and Ogasawara islands are affected by an average of 5.4 typhoons a year, compared to 3.1 in mainland Kantō. Cityscape Architecture in Tokyo has largely been shaped by Tokyo's history. Twice in recent history has the metropolis been left in ruins: first in the 1923 Great Kantō earthquake and later after extensive firebombing in World War II. Because of this, Tokyo's urban landscape consists mainly of modern and contemporary architecture, and older buildings are scarce. Tokyo features many internationally famous forms of modern architecture including Tokyo International Forum, Asahi Beer Hall, Mode Gakuen Cocoon Tower, NTT Docomo Yoyogi Building and Rainbow Bridge. Tokyo features two distinctive towers: Tokyo Tower and Tokyo Skytree, the latter of