western border). Montevideo is the southernmost capital city in the Americas, and the third most southerly in the world (only Canberra and Wellington are further south). Uruguay is the only country in South America situated entirely south of the Tropic of Capricorn. There are ten national parks in Uruguay: Five in the wetland areas of the east, three in the central hill country, and one in the west along the Rio Uruguay. Uruguay is home to the Uruguayan savanna terrestrial ecoregion. The country had a 2019 Forest Landscape Integrity Index mean score of 3.61/10, ranking it 147th globally out of 172 countries. Climate Located entirely within the southern temperate zone, Uruguay has a climate that is relatively mild and fairly uniform nationwide. According to the Köppen Climate Classification, most of the country has a humid subtropical climate (Cfa). Only in some spots of the Atlantic Coast and at the summit of the highest hills of the Cuchilla Grande the climate is oceanic (Cfb). The country experiences the four seasons, with summer being from December to March and winter from June to September. Seasonal variations are pronounced, but extremes in temperature are rare. Summers are tempered by winds off the Atlantic, and severe cold in winter is unknown. Although it never gets too cold, frosts occur every year during the winter months, and precipitation such as sleet and hail occur almost every winter, but snow is very rare; it does occur every couple of years at higher elevations, but almost always without accumulation. As would be expected with its abundance of water, high humidity and fog are common. The absence of mountains, which act as weather barriers, makes all locations vulnerable to high winds and rapid changes in weather as fronts or storms sweep across the country. These storms can be strong; they can bring squalls, hail, and sometimes even tornadoes. The country experiences extratropical cyclones but no tropical cyclones, due to the fact that the South Atlantic Ocean is rarely warm enough for their development. Both summer and winter weather may vary from day to day with the passing of storm fronts, where a hot northerly wind may occasionally be followed by a cold wind (pampero) from the Argentine Pampas. Even though both temperature and precipitation are quite uniform nationwide, there are considerable differences across the territory. The average annual temperature of the country is , ranging from in the