1
: the amount of precipitation usually measured by the depth in inches
2
Examples of rainfall in a Sentence
This area has an average annual rainfall of 12 inches.
an increase in annual rainfall
Recent Examples on the Web
The National Weather Service says the county has received only half of its usual seasonal rainfall — roughly 4 inches.
—
Gary Robbins, San Diego Union-Tribune, 17 Mar. 2025
Hurlburt said excessive rainfall in 2023 resulted in an excessive number of closures along parts of the shoreline.
—Sean Krofssik, Hartford Courant, 17 Mar. 2025
Additional rainfall amounts of 1 to 2 inches are possible in the warned area.
—Nc Weather Bot, Charlotte Observer, 17 Mar. 2025
Water Although agapanthus is drought tolerant once established, plants benefit from regular light irrigation throughout the growing season to supplement rainfall.
—Kim Toscano, Southern Living, 13 Mar. 2025
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Gary Robbins, San Diego Union-Tribune, 17 Mar. 2025
Hurlburt said excessive rainfall in 2023 resulted in an excessive number of closures along parts of the shoreline.
—Sean Krofssik, Hartford Courant, 17 Mar. 2025
Additional rainfall amounts of 1 to 2 inches are possible in the warned area.
—Nc Weather Bot, Charlotte Observer, 17 Mar. 2025
Water Although agapanthus is drought tolerant once established, plants benefit from regular light irrigation throughout the growing season to supplement rainfall.
—Kim Toscano, Southern Living, 13 Mar. 2025
See All Example Sentences for rainfall
Articles Related to rainfall
Cite this Entry
“Rainfall.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rainfall. Accessed 23 Mar. 2025.
Copy CitationKids Definition
rainfall
noun
rain·fall
-ˌfȯl 
1
: a fall of rain
2
: amount of precipitation
an annual rainfall of 20 inches
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