Based on the hourly air temperature data from one national base station and five regional automatic stations in Jinan during 2010—2014, the regional and seasonal differences in the related statistics of maximum air temperature under different terrain backgrounds(including urban, suburban and mountainous areas with different elevations) are investigated from the aspects of quantile degree, correlation, consistency, normality and periodicity, etc. Results show that there are differences in quantile statistics(including high value, low value, median and quartile) of maximum air temperature among six stations. The differences are significant among stations with different elevations, the differences are small among stations at the same altitude(including urban, suburban and mountainous areas), and the regional differences among stations are most obvious in summer. The correlation of maximum temperature between different stations in the urban areas is strong, and the correlation between mountain stations and other stations is weak. The correlation in spring and autumn is obviously higher than that in winter and summer. The frequency distribution and periodic oscillation characteristics of maximum temperature among stations are basically the same, and the maximum air temperature of each station has a significant quasi-seven-day periodic oscillation from June to July.