Teak ring-width is one of the promising paleoclimate proxies in the tropical region. Treering chronology spanning from 1840 to 2016 (177 years) was derived from 76 trees from Phrae
Province, northern Thailand. A total of 141 core samples were cross-dated, a standardized
master was constructed, and the tree residual master chronology was developed by ARSTAN
program. The tree-ring chronology has a significant positive correlation with the monthly
rainfall and relative humidity during the monsoon season (May–June). In addition, the growth
of tree-ring width also significantly inversely correlated with Niño 3, Niño 3.4, and Niño 4
indices during the second half of the dry season (January–March). We reconstructed summer
monsoon season (May–June) rainfall based on a linear regression model which explained
21.95% of the actual rainfall variance. The trend of the reconstructed rainfall record shows a
decrease of 0.6 mm per decade and substantially showed four wet periods and five dry periods.
These results suggest that this teak chronology has a good potential to be a high-resolution
proxy for reconstructing the past local climate in northern Thailand.