Rain which, at the time of observation, is falling with an intensity of between a trace and 0.10 inches (0.25 cm) per hour (0.01 inches (0.03 cm) in 6 minutes). Also see Precipitation.
RAIN, LIGHT
Meaning of RAIN, LIGHT in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012