Drizzle

light liquid precipitation

Drizzle is the name given to light rain. The drop size of drizzle is smaller than that of rain, about 0.5 mm (millimeters) in diameter.[1]

References

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  1. National Weather Service Observing Handbook No. 8, Aviation Weather Observations for Supplementary Aviation Weather Reporting Stations (SAWRS), Manual Observations, October 1996