The average rainfall value for Bacnotan La Union over the past 30 years is 722 mm (millimetre).
In city of Bacnotan La Union, the rainfall in January is 0 mm; The rainfall in February is 0 mm; The rainfall in March is 1 mm; The rainfall in April is 14 mm; The rainfall in May is 59 mm; The rainfall in June is 95 mm; The rainfall in July is 183 mm; The rainfall in August is 222 mm; The rainfall in September is 124 mm; The rainfall in October is 23 mm; The rainfall in November is 1mm; The rainfall in December is 0 mm.
Rainfall is the fall of atmospheric moisture in the form of water due to gravity. Rainfall does not occur unless cloud droplets become so large due to coalescence that the air becomes unable to hold them.
Address: Bacnotan, La Union, Philippines.