January BLues

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Across
  1. 1. Warm synthetic textile
  2. 4. Handheld pyrotechnics
  3. 10. Ice melt phase
  4. 13. Freezing-point reducer spreader
  5. 15. Airflow-adjusted cold
  6. 17. Wind-formed snow pile
  7. 18. Cable-driven ascent
  8. 19. January full moon
  9. 21. January gemstone
  10. 23. Transparent road ice
  11. 25. Surface ice crystals
  12. 26. Cold-induced tissue damage
  13. 27. Add insulating layers
  14. 29. Needle-bearing winter foliage
  15. 30. High-wind heavy snow event
  16. 32. Sublimated surface ice
  17. 34. Seasonal metabolic slowdown
  18. 36. Slow-moving ice mass
  19. 40. Behavioral reset at year start
  20. 41. Rapid snow slide
  21. 42. Thermal barrier
Down
  1. 2. Frequent nor’easter zone
  2. 3. Refrozen ice pellets
  3. 5. High-latitude region
  4. 6. Gem assigned to month
  5. 7. Drip-formed ice taper
  6. 8. Psychologically clean slate
  7. 9. Surface-area footwear
  8. 11. New Year’s standard
  9. 12. Low core temperature
  10. 14. Cold-exposure inflammation
  11. 16. Seasonal dairy drink
  12. 20. Rimed snow pellets
  13. 22. Heat-retaining material
  14. 23. Winter-related
  15. 24. Late-winter season
  16. 25. Light intermittent snow
  17. 28. Maximum axial tilt point
  18. 31. Angling through lake ice
  19. 33. Month near Earth’s perihelion
  20. 35. Hand insulation
  21. 37. January 6 observance
  22. 38. Permafrost biome
  23. 39. Equal light and dark