http://www.jinan.gov.cn/20050808/column/1811.htm济南市人民政府网站的英文版本。从里面找找看有没有你需要的。
另外，如果没有的话，可以去山东省以及济南市的相关政府网站，找里面的英文版本网站，说不定就会有帮助。
下面是网站里面的一段文字描述
Natural Environment
Situated at 36º40'N and 117º00'E, Jinan is near Mount Tai to the south and neighbors the Yellow River on the north. The terrain of Jinan slopes down from south to north and its landforms vary with hills, plains in front of the mountains and the alluvial plains of the Yellow River. There are two major water systems in Jinan-- the Yellow River and the Xiaoqing River. Daming Lake and Baiyun Lake are the major lakes.
Jinan belongs to the warm temperate zone with a continental monsoon climate. It has four distinct seasons and sufficient sunlight. Its annual average temperature is 13.6ºC. January is the coldest month with an average temperature of -1.9ºC, and July the hottest with an average temperature of 27ºC. The annual rainfall is 614 mm.
Located on the eastern coast of China, Jinan is the capital city of Shandong Province and regional central city. It is also a city at the vice—provincial level and a foreign-oriented city approved by the central government. Jinan covers an area of 8,177 square kilometers with 3,257 square kilometers of urban areas.
Jinan has a long history. It is also a culturally famous city publicized by the State Council. Jinan is glorified as the “Spring City” for its numerous springs. The city tree is willow and the city flower is lotus.