1
: the amount of precipitation usually measured by the depth in inches
2
Synonyms
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
Flooding caused by excessive rainfall is possible for portions of north central and northeast Texas, including in north central Texas, Collin, Fannin, Grayson, Hunt, Kaufman and Rockwall counties.
—
Star-Telegram Bot, Fort Worth Star-Telegram, 4 June 2024
While this year’s record-setting rainfall may feel like an excuse to reconsider the argument for removing thirsty turf, that’s ludicrous, says Pennes, who specializes in edible gardens and California native gardens.
—Lisa Boone, Los Angeles Times, 3 June 2024
Areas of eastern Kansas into western Missouri, including the Kansas City area, have the best chances for heavy rainfall, according to the weather service.
—Robert A. Cronkleton, Kansas City Star, 29 May 2024
With below-average rainfall throughout almost all the country so far this year, lakes and dams are drying up, and water supplies are running out.
—Stefanie Eschenbacher, The Christian Science Monitor, 29 May 2024
See all Example Sentences for rainfall 
Star-Telegram Bot, Fort Worth Star-Telegram, 4 June 2024
While this year’s record-setting rainfall may feel like an excuse to reconsider the argument for removing thirsty turf, that’s ludicrous, says Pennes, who specializes in edible gardens and California native gardens.
—Lisa Boone, Los Angeles Times, 3 June 2024
Areas of eastern Kansas into western Missouri, including the Kansas City area, have the best chances for heavy rainfall, according to the weather service.
—Robert A. Cronkleton, Kansas City Star, 29 May 2024
With below-average rainfall throughout almost all the country so far this year, lakes and dams are drying up, and water supplies are running out.
—Stefanie Eschenbacher, The Christian Science Monitor, 29 May 2024
See all Example Sentences for rainfall
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'rainfall.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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Cite this Entry
“Rainfall.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rainfall. Accessed 7 Jun. 2024.
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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