When a 'trace of precipitation' has been reported, it means that no more than 0.025 inches of rain has fallen.

Question

Quizplus · Accepted Answer

A trace of precipitation is defined by the National Weather Service as no more than 0.01 inches of actual liquid precipitation measured at a specific location. However, some sources may consider a trace to be up to 0.025 inches. Regardless, both definitions indicate a very small amount of precipitation.

When a 'Trace of Precipitation' Has Been Reported, It Means