Based on 1951—2000 monthly precipitation and temprature data of 19 stations in Northeast China,the spatial and temporal features of anomalous rainfall and temperature in summer and spring are discussed together with their relationship to flood and drought.It is found that the typical coupling patterns between rainfall and temperature and the corresponding time coefficients present the spatial and temporal characteristics of rainfall and temperature anomalies very well.A good correspondence between the years appearing the extremum of time coefficients in summer and the severe flood and drought years is also detected.