初はつ霜しも

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Meanings

first frost of the year

Refers to the first frost of the autumn or winter season, often used in seasonal greetings or weather reports.

初はつ霜しもが降おりるfor the first frost to fall/form
今朝けさ、庭にわに初はつ霜しもが降おりた。
The first frost of the year fell on the garden this morning.
初はつ霜しもが観かん測そくされるfor the first frost to be observed/recorded (in weather reports)
北ほっ海かい道どうでは十じゅう月がつ中ちゅう旬じゅんに初はつ霜しもが観かん測そくされた。
The first frost of the year was recorded in Hokkaido in mid-October.
初はつ霜しもの便たよりnews/report about the first frost (often used in seasonal correspondence)
初はつ霜しもの便たよりが届とどく頃ころになりました。
It's now the time of year when news of the first frost starts to arrive.