Downpour vs Rainstorm

When to use each in English, with meaning, register, and examples.

Downpour

Top 5,000 (fairly common)

Rainstorm

Top 3,000 (common)
Most common: Rainstorm
 DownpourRainstorm
Pronunciation🇬🇧 //ˈdaʊn.pɔː//🇺🇸 //ˈdaʊn.pɔr//🇬🇧 //ˈreɪnˌstɔːm//🇺🇸 //ˈreɪnˌstɔrm//
MeaningA lot of rain that falls quickly.A heavy rainfall with strong winds and thunder.
ExampleThe forecast predicts a downpour this afternoon.The rainstorm caused flooding throughout the city.
RegisterNeutralNeutral
How commonTop 5,000 (fairly common)Top 3,000 (common)
Collocationsheavy downpour, unexpected downpour, torrential downpour, summer downpoursevere rainstorm, heavy rainstorm, unexpected rainstorm, violent rainstorm
Common mistakesConfusing downpour with drizzle, Using downpour in a non-weather context, Mispronouncing the wordConfusing 'rainstorm' with 'thunderstorm' - a rainstorm can occur without thunder., Using 'rainstorm' in place of 'shower' - a rainstorm is much heavier.
Usage notesUsed in everyday conversations about weather. Not typically used in formal writing.Commonly used in everyday conversation and news reports. Not typically used in formal writing.

Frequently asked questions: Downpour vs Rainstorm

What's the difference between Downpour and Rainstorm?

Downpour: A lot of rain that falls quickly. Rainstorm: A heavy rainfall with strong winds and thunder.

Which is more common: Downpour and Rainstorm?

Rainstorm is the most common in everyday English.

Can I use Downpour and Rainstorm interchangeably?

Not always. Downpour and Rainstorm are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

Related comparisons