onset of winter

Translations
наступление зимы
The onset of winter was marked by the first snowfall.
Наступление зимы было отмечено первым снегопадом.
Definitions
The onset of winter refers to the beginning or arrival of the winter season, characterized by colder temperatures, shorter days, and often the occurrence of snow or frost.
Words
onset

noun
начало
of

preposition
-
winter

noun
зима