Which month?

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Across
  1. 1. New Year's Day
  2. 3. Entrance ceremony (入学式)
  3. 7. Respect for the Aged Day (敬老の日)
  4. 9. Valentine's Day
  5. 10. Christmas Day
Down
  1. 1. Marine Day (海の日)
  2. 2. summer vacation
  3. 4. 7-5-3
  4. 5. Hydrangea blooming あじさいが咲く
  5. 6. Health and Sports Day (体育の日)
  6. 8. Graduation ceremony (卒業式)」
  7. 11. Children's Day