In this study, tree ring analysis of Mexican weeping pine (P. patula) from Kohima Botanical Garden of Nagaland, Northeast India was carried out. Tree ring-width chronology for 39 years extending from 1983 to 2021 was developed. The developed chronology exhibited high potential of the species for dendroclimatological studies and to understand the tree growth patterns in relation to changing climate. The ring-width chronology indicated occurrence of common event years mostly related to the drought records in the region. Further, the resilience component analysis demonstrated low resistance of the species to extreme event years, particularly drought, as indicated by significant reduction in growth and recovery rate. In conclusion, the tree growth and development in the region were severely impacted by moisture deficit events, and therefore, future policy formulation needs to be developed considering water management plans for climate resilient forestry and agriculture in the region.