expression
last snows; snow remaining after the anniversary of Buddha's death
Refers to snow that lingers after the 涅槃会 (Nehan-e, the memorial service for Buddha's passing, typically February 15). The expression is poetic and seasonal, often used in haiku or literary contexts.
See also: 涅槃会 · 涅槃雪 (ねはんゆき)
涅槃会が過ぎても、山には雪の果てが残っていた。
Even after the Nehan-e service, the last snows still lingered on the mountain.
When the last snows disappear, the feeling of spring finally arrives.