The long-term regional climate history can be studied by a range of climate proxies ice cores, stalagmites, corals and documentary material, as well as tree rings.Among those proxies, annual resolved tree rings serves as one of the best proxies for recording climate change over the last millenniums.In this study, a May-July temperature proxy extending back to 1836 was developed from tree-ring width of Chinese pine (Pinus tabulaeformis Carr.) found in the middle Lüliang Mountains, northern China.Correlations analysis indicated a strong response of tree-ring index to May-July mean temperatures, which were subsequently reconstructed.The reconstruction captures 45% (F=38.474, p<0.001) of the regional variance in the instrumental data over the calibration period 1955-2003.Reconstructed warm and cold periods were verified by additional temperature reconstructions based on tree-ring data from northern China.In addition, the reconstruction was significantly correlated with May-July mean temperatures from 13 other meteorological stations in northern China, suggesting that our reconstruction is also representative of north-central China.The warming trend during the second half of the 20th century is seen in the reconstruction, but only the 1994-2002 mean temperature seems unprecedented over the whole reconstructed period.