The seasonal variation characteristics of temperature in Guiyang and its reasons are analyzed.

Features: high temperature in summer and low temperature in winter; 5438+ 10 The average temperature in June is above 0 degrees Celsius.

Reason: Guiyang is subtropical, with low latitude and high temperature; In summer, the sun shines directly in the northern hemisphere. Guiyang has a high sun, long days and short nights, receives more solar radiation and has a high temperature. In winter, the sun shines directly in the southern hemisphere. Guiyang has small height, short days and long nights, less solar radiation and low temperature.

There is no scorching summer in Guiyang, with an average summer temperature of 23.2℃ and a maximum temperature of 25-28℃. In the hottest late July, the average temperature was only 23.7℃, and the days when the highest temperature was higher than 30℃ were few, with an average of only 35.8 days in recent five years and only 0.3 days higher than 35℃. The intensity of ultraviolet rays only reaches level 4 in a short time at noon, and the rest time is very weak or weak; Summer rainfall is abundant, about 500 mm, and nighttime precipitation accounts for 70% of the annual precipitation. There is no severe cold in winter in Guiyang, the coldest is 1 the beginning of the month, with an average temperature of 4.6℃. More importantly, the forest belt around Guiyang city provides rich negative oxygen ions, which can be described as "natural oxygen bar" and has won the reputation of "there is heaven above, Suzhou and Hangzhou below, and the climate is suitable for Guiyang".