Months and seasons

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Across
  1. 5. Christmas
  2. 6. the warmest season
  3. 7. St Patrick's Day
  4. 8. Halloween
  5. 9. Fools' Day
  6. 10. Mother's day
  7. 12. the seventh month
  8. 13. the eighth month
  9. 15. the 1st month
Down
  1. 1. the coldest season
  2. 2. the eleventh month
  3. 3. Valentine's Day
  4. 4. back to school
  5. 11. the season with colourful leaves
  6. 14. the season with Easter
  7. 15. the end of school