Tree-ring width data are an important proxy for assessing climatic changes because they provide continuous yearly paleoclimatic records for regions or time periods for which instrumental climate data are not available. Two standard tree-ring width chronologies of Pinus tabulaeformisi (PT) and Pinus armandii (PA) were developed from Baotianman National Nature Reserve, and another regional multispecies chronology (RC) was also established with all samples from P. armandii and P. tabulaeformis. Monthly mean temperature (T), mean monthly maximum temperature (T_max), mean monthly minimum temperature (T_min), total monthly precipitation (P), and seasonal climate variables were employed to discuss the correlations between chronologies (PT, PA, and RC) and climate factors. The results showed that single species chronologies (PT and PA) had strong climatic signals and similar responses to the same climatic factor. Monthly precipitation in April and May had a significant positive influence on P. armandii and P. tabulaeformis, whereas monthly temperature had different effects on tree growth. PT was negatively correlated with Tmax in May and Tmin in the previous November and was positively correlated with Tmin in March. PA showed a negative correlation with Tmax in the previous October and current April and a positive correlation with Tmin in the previous December and current July. The RC, which assessed both species together, showed collective climatic responses of single-species chronologies PT and PA. RC showed a significant positive correlation with P in April and May and with Tmin in March. However, it showed a negative correlation with Tmin in July and Tmax in April and May. On the other hand, there were similar results for RC and the individual species with the different seasonal climate variables in the growing season (March-August). On the whole, the multispecies chronology showed similar climate responses and higher forced collective ecophysiological characteristics compared to P. armandii and P. tabulaeformis alone. This gives a suggestion that combination of species provide more valuable reference for regional dendroclimatic investigations compared to the use of one single species.