What is the lowest temperature in Henan history?

The lowest temperature in Henan history is -29.

Most of Henan Province is in the warm temperate zone, and the south is subtropical, which belongs to the continental monsoon climate of transition from north subtropical zone to warm temperate zone. At the same time, it also has the characteristics of transition from plain to hilly and mountainous climate from east to west, with distinct four seasons, simultaneous rain and heat, complexity and diversity, and frequent meteorological disasters.

From south to north, the average annual temperature in the province is 10.5 ~ 16.7℃, and the average annual precipitation is 407.7 ~ 1295.8 mm, with the most rainfall in June-August, and the average annual sunshine 1285.7 ~ 2292.9 hours, with a frost-free period.

geographical environment

The terrain of Henan province is north-south, connecting east and west, with high terrain in the west and low terrain in the east. Taihang Mountain, Funiu Mountain, Tongbai Mountain and Dabie Mountain in the north, west and south are distributed in a semicircle along the provincial boundary. The central and eastern part is the Huang-Huai-Hai alluvial plain; Nanyang basin is in the southwest, with plains and basins, mountains and hills accounting for 55.7%, 26.6% and 17.7% of the total area respectively. Laoya Tea in lingbao city is the highest mountain in the province, with an altitude of 2413.8m; the lowest altitude is at the exit of Huaihe River in Gushi County, only 23.2m..

The magmatic eruption activity in Henan Province is intense, and volcanic rocks are widely distributed. The exposed area of Wuwangshan period is 5300 square kilometers, Caledonian period is 65438 0580 square kilometers, Yanshan period is 330 square kilometers, Himalayan period is 74 square kilometers, and volcanic rocks in Songyang period and Zhongtiao period have all undergone deep metamorphism.

Reference to the above content: Baidu Encyclopedia-Henan Province