Precipitation Rate : The rate at which precipitation is either measure or judge to be falling. Winter precipitation is a key factor in estimating the Holdover Time for an anti-icing fluid. It is the indication of moisture content
Transport Canada, TP 10643 -When in Doubt. Small and Large Aircraft - Aircraft Critical Surface Contamination Training for Aircrew and Groundcrew, Glossary 7th Ed., Ottawa, ON, Canada 2004, http://www.tc.gc.ca/eng/civilaviation/publications /tp10643-glossary-1116.htm, (Avn Sfty - Canad) {652}