The southernmost location in Earth's Northern Hemisphere—or, in other words, the location closest to the equator in the entire Northern Hemisphere—where snowfall is possible is located in Vietnam, which has a tropical monsoon climate. Farther south in the Northern Hemisphere, snowfall is generally prevented either by the absence of sufficiently high mountains capable of providing the necessary cold, or by high temperatures associated with proximity to hot tropical or desert regions.
Nevertheless, according to data recorded by the Aqua and Terra satellites, snowfall on January 6, 2014 (16 Dey 1392) across the deserts of southern and southeastern Iran also covered the protected area of Mount Birk with snow. Its summit reaches 2,750 metres and lies in Sistan and Baluchestan Province, about 120 kilometres east of Iranshahr, in a desert region.
This area, together with many other Iranian desert regions that received snow on Monday and Tuesday, is described in the source as among the southernmost places on Earth where snowfall can occur despite a hot, dry desert climate. Mount Farghan, 3,268 metres high and located 78 kilometres north of Bandar Abbas, was also covered with snow on Monday. In fact, while Monday temperatures in Iranshahr and Bandar Abbas were 19°C and 17°C above zero respectively, snow was falling in the nearby highlands.
You have probably heard it said that Iran is one of the few countries in the world where, at the same moment that snow is falling in the north, people in the south can swim in the warm waters of the Persian Gulf and the Gulf of Oman. With the snowfall of the preceding few days in southern and southeastern Iran, residents of those regions could enjoy completely pleasant weather at this time of year and then, after roughly an hour's drive, reach snow-covered areas. The author concludes by remarking on the remarkable diversity of Iran's climate.