The objective is to evaluate the Alnus acuminate potential for its later use in dendroclimatological studies. The research analyses the width tree-ring chronology for an A forest. “acuminate” in San Pedro de Sano and it was related the trees growth with the instrumental records of average, maximum and minimum temperature, precipitation and sunshine hours of the Huayao Weather Stations (12° 02’ 18.1¨ S - 75° 19’ 22.2¨ O) and Santa Ana (12° 00’ 15¨ S - 75° 13’ 15¨ O). The width ring chronology is composed of 33 sets of 22 trees and covered the 1968-2013 period. The trees growth was negatively related to the minimum monthly temperature of April this year. It was observed a positive and significant relationship between the growth timing and the Santa Ana station precipitation for March of the previous year and December of the current growth year. The April monthly sunshine hours of current year are significantly correlated with the radial growth. There is a precipitation influence of the previous summer and spring of the current year favoring the trees growth. The tree enters in dormancy, possibly due to the fall low temperatures. The wide range of distribution and the historic use of its wooden buildings in the past, opens the possibility to temporarily extend the dendrochronological records in the central Andes of Peru.