| Rank | Average Humidity ▼ | School District / Population |
| 1. | 81.49% | Georgetown County School District / 60,389 |
| 2. | 80.35% | Horry County School District / 283,280 |
| 3. | 80.20% | Williamsburg County School District / 33,560 |
| 4. | 80.16% | Orangeburg School District 4 / 20,108 |
| 5. | 79.93% | Clarendon School District 2 / 18,553 |
| 6. | 79.75% | Sumter School District 17 / 50,204 |
| 7. | 79.28% | Calhoun County School District / 15,031 |
| 8. | 79.19% | Barnwell School District 19 / 5,004 |
| 9. | 79.17% | Barnwell School District 29 / 5,368 |
| 10. | 79.12% | Sumter School District 2 / 57,252 |
| 11. | 78.94% | Orangeburg School District 5 / 50,688 |
| 12. | 78.92% | Lee County School District / 18,708 |
| 13. | 78.86% | Clarendon School District 1 / 9,313 |
| 14. | 78.79% | Clarendon School District 3 / 6,573 |
| 15. | 78.77% | Bamberg School District 2 / 7,038 |
| 16. | 78.65% | Dillon School District 2 / 23,452 |
| 17. | 78.57% | Dillon School District 1 / 5,462 |
| 18. | 78.54% | Bamberg School District 1 / 8,611 |
| 19. | 78.13% | Lexington School District 4 / 18,396 |
| 20. | 77.77% | Marion School District 2 / 11,648 |
| 21. | 77.77% | Lexington School District 3 / 12,749 |
| 22. | 77.68% | Kershaw County School District / 62,342 |
| 23. | 77.64% | Barnwell School District 45 / 11,915 |
| 24. | 77.61% | Lexington School District 2 / 63,624 |
| 25. | 77.49% | Edgefield County School District / 26,573 |
| 26. | 77.39% | Lexington School District 1 / 126,307 |
| 27. | 77.35% | Aiken County School District / 165,978 |
| 28. | 77.26% | Richland School District 1 / 206,981 |
| 29. | 77.26% | Florence School District 4 / 6,032 |
| 30. | 77.10% | Florence School District 3 / 19,559 |
| 31. | 77.01% | Florence School District 5 / 5,213 |
| 32. | 76.72% | Fort Jackson Schools / 14,761 |
| 32. | 76.72% | Richland County School District 2 within Fort Jackson / 14,761 |
| 34. | 76.65% | Beaufort County School District within Beaufort Marine Corps Air Station / 949 |
| 34. | 76.65% | Beaufort Marine Corps Air Station School District / 949 |
| 36. | 76.64% | Dillon School District 3 / 8,077 |
| 37. | 76.38% | Marlboro County School District / 28,294 |
| 38. | 76.37% | Saluda County School District / 15,250 |
| 39. | 76.30% | Lexington School District 5 / 93,939 |
| 40. | 76.16% | Orangeburg School District 3 / 20,466 |
| 41. | 76.13% | Allendale County School District / 10,027 |
| 42. | 75.92% | Marion School District 7 / 6,077 |
| 43. | 75.87% | Florence School District 1 / 100,376 |
| 44. | 75.85% | Darlington County School District / 68,161 |
| 45. | 75.71% | Richland School District 2 / 128,949 |
| 46. | 75.70% | Beaufort County School District / 167,504 |
| 47. | 75.67% | Florence School District 2 / 6,878 |
| 48. | 75.62% | Chesterfield County School District / 46,333 |
| 49. | 75.43% | Fairfield County School District / 23,382 |
| 50. | 75.17% | Hampton School District 1 / 13,195 |
| 51. | 75.13% | McCormick County School District / 10,003 |
| 52. | 75.11% | Dorchester School District 4 / 16,296 |
| 53. | 75.05% | Marion School District 1 / 15,337 |
| 54. | 74.80% | York School District 2 / 36,439 |
| 55. | 74.44% | Newberry County School District / 37,593 |
| 56. | 74.10% | Colleton County School District / 38,247 |
| 57. | 74.10% | York School District 1 / 32,570 |
| 58. | 74.01% | York School District 3 / 112,078 |
| 59. | 73.96% | York School District 4 / 54,198 |
| 60. | 73.83% | Greenwood School District 52 / 7,364 |
| 61. | 73.77% | Lancaster County School District / 79,515 |
| 62. | 73.74% | Chester County School District / 32,708 |
| 63. | 73.25% | Hampton School District 2 / 7,475 |
| 64. | 72.74% | Greenwood School District 50 / 58,892 |
| 65. | 72.66% | Cherokee County School District / 53,716 |
| 66. | 71.95% | Oconee County School District / 74,656 |
| 67. | 71.24% | Union County School District / 28,329 |
| 68. | 71.18% | Spartanburg School District 3 / 16,307 |
| 69. | 71.10% | Abbeville County School District / 23,891 |
| 70. | 71.06% | Laurens School District 56 / 20,894 |
| 71. | 70.55% | Anderson School District 4 / 21,928 |
| 72. | 70.54% | Spartanburg School District 7 / 53,770 |
| 73. | 70.48% | Spartanburg School District 2 / 58,913 |
| 74. | 70.37% | Berkeley County School District / 188,835 |
| 75. | 70.29% | Spartanburg School District 1 / 29,714 |
| 76. | 70.25% | Jasper County School District / 26,042 |
| 77. | 69.92% | Spartanburg School District 6 / 61,345 |
| 78. | 69.83% | Anderson School District 5 / 79,906 |
| 79. | 69.73% | Anderson School District 3 / 15,039 |
| 80. | 69.62% | Spartanburg School District 5 / 42,810 |
| 81. | 69.58% | Charleston County School District / 365,674 |
| 82. | 69.56% | Greenwood School District 51 / 7,101 |
| 83. | 69.55% | Pickens County School District / 119,577 |
| 84. | 69.38% | Laurens School District 55 / 36,736 |
| 85. | 69.19% | Spartanburg School District 4 / 18,504 |
| 86. | 68.85% | Dorchester School District 2 / 126,476 |
| 87. | 68.70% | Greenville County School District / 482,484 |
| 88. | 68.25% | Anderson School District 2 / 23,295 |
| 89. | 67.99% | Anderson School District 1 / 49,874 |
Please note that we only rank locations with 'Average Humidity' data. The rank above might not be a complete list. Locations without 'Average Humidity' data are not listed.
