Using the surface observations from seven stations in Qingyuan from 1970 to 2010(41years) and with the method of tendency analysis,we made a statistical analysis of the climatologic characteristics of high-temperature weather in the city. The result is shown as follows. In the spatial distribution,the number of high-temperature days(NHTD) shows an obviously decreasing trend from the northwest to the southeast,with a large difference between the north and the south of the city such that the station with the ...