Abstract:Global climate was persistently warmer in 2004. In early this year, snowstorms occurred in some countries in Europe and a heavy snow attacked America. Extreme cold and extreme low temperature events occurred in South Asia and Mexico. During the summer and autumn, tropical storms in the Pacific and the Atlantic Ocean brought huge damage to Japan, Philippines, U.S.A and etc. During 2004, drought conditions continued to affect parts of South Africa and Asia. Wetter-than-average conditions prevailed in South Asia, part of South America and some countries in southern Africa. Heatwaves affected Iberian Peninsula, Japan and Australia respectively.