Geography

The geography of the area is described as being part of the Ordos Desert in the north along the border with Inner Mongolia, the Loess Plateau in the central part of the province, the Qinling Mountains running east to west in the south central part, and subtropical climate south of the Qinling Mountains. In between the Loess Plateau and the Qinling Mountains lies the Wei River Valley, or Guanzhong, a cradle of early Chinese civilization.

Going clockwise, Shaanxi borders Shanxi (E, NE), Henan (E), Hubei (SE), Chongqing (S), Sichuan (SW), Gansu (W), Ningxia (NW), and Inner Mongolia (N). In terms of number of bordering provincial-level divisions, Shaanxi ties Inner Mongolia.

Due to its large span in latitude, Shaanxi has a variety of climates. Under the Köppen climate classification, the northern parts, including the Loess Plateau, have either a cold arid or cold semi-arid, with cold and very dry winters, dry springs and autumns, and hot summers. The area known as Guanzhong is mostly semi-arid, though there are a few areas with a humid subtropical climate, with cool to cold winters, and hot, humid summers that often see early-season heatwaves. The southern portion is much more humid and lies in the humid subtropical zone, with more temperate winters and long, hot, humid summers. Annual mean temperature is roughly between 8 to 16 °C (46 to 61 °F), with January temperatures ranging from −11 to 3.5 °C (12.2 to 38.3 °F) and July temperatures ranging from 21 to 28 °C (70 to 82 °F).