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In order to increase the accuracy of daily temperature forecast, using the data of 1955 to 2006 from 17 stations in the Shijiazhuang area to analyze the differences of daily minimum and maximum temperature between 16 rural stations and an urban station. Results show that the maximum and minimum temperatures of the rural stations are significantly lower than that of the urban station, with the monthly mean minimum temperature being much lower. Also analyzed are the possible causes of the obvious difference observed. The results have practical value for the use of central station’s monitoring and forecasting information to improve the accuracy of air temperature forecasts for rural (urban) stations.