History:
The history of Darjeeling is intertwined with that of Bengal, Bhutan, Sikkim and Nepal. Until the early 19th century, the hilly area around Darjeeling was historically controlled by the kingdoms of Bhutan and Sikkim, while the plains around Siliguri were intermittently occupied by the kingdom of Nepal, with settlement consisting of a few households of Lepcha people. In 1828, a delegation of British East India Company officials on its way to Sikkim stayed in Darjeeling and decided that the region was a suitable site for a sanatorium for British soldiers. The Company negotiated a lease of the area west of the Mahananda River from the Chogyal of Sikkim in 1835. In 1849 British East India Company (BEIC) director Arthur Campbell and the explorer and botanist Joseph Dalton Hooker were imprisoned in the region; the East India Company sent a force to free them. Continued friction between the BEIC and the Sikkim authorities resulted in the annexation of 640 square miles (1,700 km2) of territory in 1850. In 1864, the Bhutanese rulers and the British signed a treaty that ceded the passes leading through the hills and Kalimpong to the British.[8] The continuing discord between Sikkim and the British resulted in a war, culminating in the signing of a treaty and the annexation by the British of the area east of the Teesta River in 1865. By 1866, Darjeeling District had assumed its current shape and size, covering an area of 1,234 square miles (3,200 km2).
During the British Raj, Darjeeling's temperate climate led to its development as a hill station for British residents seeking to escape the summer heat of the plains, and its becoming the informal summer capital of the Bengal Presidency in 1840, a practice that was formalised after 1864.

Geography:
Darjeeling is the main town of the Sadar subdivision and also the headquarters of the district. It is located at an average elevation of 6,710 ft (2,050 m)[1] in the Darjeeling Himalayan hill region on the Darjeeling-Jalapahar range that originates in the south from Ghum. The range is Y-shaped with the base resting at Katapahar and Jalapahar and two arms diverging north of the Observatory Hill. The north-eastern arm dips suddenly and ends in the Lebong spur, while the north-western arm passes through North Point and ends in the valley near Tukver Tea Estate.[25] The hills are nestled within higher peaks and the snow-clad Himalayan ranges tower over the town in the distance. Kanchenjunga, the world's third-highest peak, 8,598 m (28,209 ft) high, is the most prominent mountain visible. In days clear of clouds, Nepal's Mount Everest, 29,035 ft (8,850 m) high, can be seen.

Weather:
Darjeeling is one of the most beautiful cities of West Bengal. Nestled amidst the Eastern Himalayas, it not only offers you pleasing scenic grandeur, but also an experience of being amongst an area so unique and so different from the other parts of the country. The joy of riding in the toy train and pleasure of wandering in premium quality tea gardens and timber lands is the special feature of Darjeeling that no tourist spot other than can offer. Darjeeling also serves as a pleasant getaway from the scorching heat of summers in the plains. The climate of Darjeeling can be divided into five distinct seasons, namely spring, summer, autumn, winter, and monsoons. Let us know more about Darjeeling weather.
Summers
In Darjeeling, summers are moderate and last from May to June. The maximum temperature rarely crosses 250 C, while the minimum temperature is around 80 C. Still, the average summer temperature in Darjeeling ranges between 80 C and 150 C. Thus, summers here are obliviously very pleasing especially, if you have moved to the hill resort from some scorching or humid plain land.
Monsoon
In Darjeeling, summer is followed by monsoon, which lasts until September. The monsoon brings heavy torrential rains, which might cause landslides. Sometimes, these heavy rains continue all day long. The average annual precipitation here is 281.8 cm, with the highest rainfall occurring in the month of July. In Monsoon, all the adventure activities, like trekking and mountaineering, come to a halt.
Winter
The winter in Darjeeling is much colder when compared to plains of West Bengal. The average temperature is around 50 C. However, at times, it may dip below 00 C also, making the cold unbearable and harsh. Darjeeling is generally masked in haze and smog during winter. If you are one of those who love to enjoy the beauty of nature amidst cold conditions, winter is surely the time to visit this place.