Abstract: Hindcast experiments for the 10-year period from 2001 to 2010 are completed using the regional climate model RegCM4.4 (Regional Climate Model version 4.4), driven by the global model CCSM4.0 (Community Climate System Model version 4.0). All experiments are conducted from 1 Feb to 1 Sep. The hindcast simulations from CCSM4.0 and RegCM4.4 are intercompared and evaluated against observations in the summer season (June-July-August, JJA). RegCM4.4 captures the observed temperature and precipitation climatology better than CCSM4.0 and provides more detailed and reliable local information. The spatial correlation coefficient of precipitation improves from 0.39 in CCSM4.0 to 0.53 in RegCM4.4, while similar bias in reproducing monsoonal precipitation, characterized by the overestimation in northern China, is apparent. The anomalies of temperature and precipitation are in general consistent between the two models, as measured by the spatial anomaly correlation coefficient (ACCs) and temporal anomaly correlation coefficient (ACCt), the prediction consistency of the anomaly sign (PCs and PCt), and the prediction score (PS) between hindcasts and observations. Meanwhile, more detailed spatial information and a slightly better performance in precipitation are presented by RegCM4.4; the multi-annual ACCs values for precipitation from CCSM4.0 and RegCM4.4 are 0.03 and 0.10, and the corresponding PS values are 70.4 and 71.4, respectively. The anomalies of precipitation in two cases (2003 and 2009) are also analyzed and discussed.