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
During heavy rainfall, there is a risk of flooding, especially in low-lying and flood-prone areas.
—
Nc Weather Bot, Charlotte Observer, 5 Mar. 2025
The saguaro’s shallow roots spread out as wide as the plant is tall, remaining close to the surface to absorb more water during a rainfall.
—Hazlitt, 5 Mar. 2025
The rainfall is expected to become widespread, with a few thunderstorms possible, the weather service said.
—Robert A. Cronkleton, Kansas City Star, 4 Mar. 2025
In Texas, the Texas A&M Forest Service has issued warnings about elevated fire danger due to strong post-frontal winds and low humidity, increasing wildfire risks in areas that receive little rainfall from this storm.
—Thomas G. Moukawsher, Newsweek, 4 Mar. 2025
See All Example Sentences for rainfall
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Nc Weather Bot, Charlotte Observer, 5 Mar. 2025
The saguaro’s shallow roots spread out as wide as the plant is tall, remaining close to the surface to absorb more water during a rainfall.
—Hazlitt, 5 Mar. 2025
The rainfall is expected to become widespread, with a few thunderstorms possible, the weather service said.
—Robert A. Cronkleton, Kansas City Star, 4 Mar. 2025
In Texas, the Texas A&M Forest Service has issued warnings about elevated fire danger due to strong post-frontal winds and low humidity, increasing wildfire risks in areas that receive little rainfall from this storm.
—Thomas G. Moukawsher, Newsweek, 4 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 12 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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