sprinkling

noun

The action of the verb to sprinkle.
A small thinly distributed amount, e.g. of some liquid, powder or other fine substance that is sprinkled on to something.
“Among the devotees […] were persons who suffered from loathsome skin diseases, such as smallpox, abscesses, and the itch; and among them there was a fair sprinkling of debauchees, who had drunk themselves nearly blind and hoped to recover the use of their precious eyes by parading for a month in this curious mantle.”
“It notes: "The Welsh Government's view is that genuine 'levelling up' cannot simply mean a sprinkling of new, ad hoc rail projects decided in Whitehall, it has to be part of a strategic approach to promoting growth in all parts of the UK."”
A light shower of rain.
A scattering.