Simple Definition of rainfall
: the amount of rain that falls on a particular area
Full Definition of rainfall
1 : the amount of precipitation usually measured by the depth in inches
2 : rain 2a
Examples of rainfall in a sentence
This area has an average annual rainfall of 12 inches.
an increase in annual rainfall
First Known Use of rainfall
RAINFALL Defined for Kids
Seen and Heard
What made you want to look up rainfall? Please tell us where you read or heard it (including the quote, if possible).