Question: When does winter occur in the northern hemisphere?
Answer: December , January and February
Disambiguated annotations:
qaPairs: question: What is the name of the day that winter occurs in the northern hemisphere?
answer: Winter Solstice
question: On what date does winter occur in the northern hemisphere?
answer: December 21st
question: For what range of dates does Winter occur in the northern hemisphere?
answer: December 21 - March 20