Horton Plains in Sri Lanka is the coldest and windiest location in the country. It consists of ecosystems such as Montane evergreen forests, grasslands, marshy lands, and aquatic ecosystems. At an altitude of 2,100 meters above sea level, Horton Plains spreads across over 3,169 hectares of the highest tableland of the island. In view of a large number of endemic flora and fauna species, Horton Plains has declared a UNESCO World Heritage Site on 30th July 2010. The Climate of Horton Plains is that of a wet Montane forest. The average annual temperature of 14-16⁰ Centigrade while the humidity is relatively low at 65%. Though annual rainfall of the highlands is about 2540mm, Horton Plains records over 5000 mm of rainfall annually. During the dry season, the temperature drops to around 5⁰ Centigrade in the day time. Swept with strong gale force winds at times, over-night frost is fairly common.