Meaning of the word "not cast a clout until May be out" in English

What does "not cast a clout until May be out" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

not cast a clout until May be out

US /nɑt kæst ə ˈklaʊt ənˈtɪl ˈmeɪ bi ˌaʊt/
"not cast a clout until May be out" picture
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