By using the daily temperature data in 90 meteorological observatories in Shandong Province,the median and a new kind of extreme event detection method which was put forward by Hample,the variation characteristics of extreme cold and warm weather climate events in Shandong Province were detected and analyzed.The results showed that the extreme high temperature days had no obvious variation,and the extreme warm days tended to increase.The extreme cold event decreased obviously and had the obvious inter-decad...