Question

how does winter rainfall occur ,where does it cause rain​

Answer 1

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Snow or rain occur at times, but evaporation from the cold sea and land surfaces is slow, and the cold air has little capacity for moisture. ... During the Northern Hemisphere winter, cool dry air from the interior of the continent flows southward and produces little rain over the land areas.

Answer 2

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This rainfall is actually because of retreating of South West monsoon winds. Monsoon winds comes from South West direction and moves towards north during summer months. This is because of bay of Bengal, winds carry moisture and causes winter rainfall in South East Coast of India.