Abstract: By using linear and Rescaled Range Analysis(R/S),the change characteristics and the future trends of the annual precipitation and the annual average temperature in Cangzhou were analyzed.The results showed that change characteristics and the future trends of the temperature and annual precipitation were not same entirely.The temperature increased in the past 35 years with a change rate by 0.394 ℃ per ten years,while the Hurst index was 0.848 which indicated that there existed obvious Hurst phenomenon in the future.Although the annual precipitation was declining in the past 51years,but the Hurst index of the precipitation was only 0.53 which meant that the annual precipitation in the future was likely to change or remain stable in this region.

Key words: Cangzhou, Cangzhou, Temperature, Annual precipitation, Trend