Bad weather in August or March (5)

I believe the answer is:

storm

'bad weather' is the definition.
(I've seen this before)

'in august or march' is the wordplay.
'in' indicates the answer is hidden within the clue.
'STORM' is hidden within 'august or march'.

(Other definitions for storm that I've seen before include "Squall" , "Trouble" , "Attack and capture (a place)" , "violent assault" , "Shout angrily, assault" .)

I've seen this clue in The Telegraph.

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