The statistical analysis of climatological data concerning the strong northeast monsoon caused by cold air during the decade from 1988 to 1997 along the coast of Guangdong province reveals that the monthly change of the northeast monsoon is clear, and its interannual change is reducing. It is closer related with the surface predictors than that with the 850hPa ones. In addition, the location of the center of surface cold high, which would change with the different month and the forecast period, has high centralization.