Ice Storm Risk in Tennessee
All Tennessee counties ranked by FEMA National Risk Index ice storm score
Ice Storm risk — freezing rain that coats surfaces in heavy, damaging ice — is rated for 95 of 95 Tennessee counties in FEMA's National Risk Index. Knox County carries the state's highest ice storm score at 92.3, with $1M in expected annual ice storm losses.
13 Tennessee counties are rated High or Very High for ice storm, and expected annual losses from ice storm total roughly $19M statewide. The full ranking below links to each county's complete 18-hazard risk profile.
County Rankings — Ice Storm
| # | County | Ice Storm Score | Rating | Ann. Freq. | Ann. Loss |
|---|---|---|---|---|---|
| 1 | Knox County | High | 0.37 / yr | $1M | |
| 2 | Obion County | High | 1.48 / yr | $912K | |
| 3 | Montgomery County | High | 0.74 / yr | $1M | |
| 4 | Shelby County | High | 1.09 / yr | $818K | |
| 5 | Tipton County | High | 1.08 / yr | $791K | |
| 6 | Madison County | High | 0.68 / yr | $614K | |
| 7 | Dyer County | High | 1.33 / yr | $574K | |
| 8 | Sumner County | High | 0.68 / yr | $924K | |
| 9 | Hamilton County | High | 0.62 / yr | $652K | |
| 10 | Gibson County | High | 1.13 / yr | $487K | |
| 11 | Williamson County | High | 0.62 / yr | $1M | |
| 12 | Henry County | High | 1.14 / yr | $370K | |
| 13 | Lauderdale County | High | 1.33 / yr | $343K | |
| 14 | Maury County | Medium | 0.61 / yr | $522K | |
| 15 | Weakley County | Medium | 1.40 / yr | $483K | |
| 16 | Wilson County | Medium | 0.68 / yr | $629K | |
| 17 | Davidson County | Medium | 0.69 / yr | $417K | |
| 18 | Robertson County | Medium | 0.73 / yr | $437K | |
| 19 | Fayette County | Medium | 0.73 / yr | $305K | |
| 20 | Rutherford County | Medium | 0.62 / yr | $365K | |
| 21 | Blount County | Medium | 0.33 / yr | $311K | |
| 22 | Carroll County | Medium | 0.85 / yr | $218K | |
| 23 | Dickson County | Medium | 0.74 / yr | $293K | |
| 24 | Putnam County | Medium | 0.72 / yr | $246K | |
| 25 | Crockett County | Medium | 1.19 / yr | $153K | |
| 26 | Stewart County | Medium | 1.09 / yr | $150K | |
| 27 | Anderson County | Medium | 0.47 / yr | $182K | |
| 28 | Cheatham County | Medium | 0.69 / yr | $211K | |
| 29 | Lake County | Medium | 1.22 / yr | $105K | |
| 30 | Washington County | Medium | 0.18 / yr | $169K | |
| 31 | Haywood County | Medium | 0.77 / yr | $108K | |
| 32 | Cumberland County | Medium | 0.68 / yr | $113K | |
| 33 | Bradley County | Medium | 0.58 / yr | $169K | |
| 34 | Roane County | Medium | 0.57 / yr | $112K | |
| 35 | Loudon County | Medium | 0.50 / yr | $116K | |
| 36 | Sevier County | Medium | 0.21 / yr | $120K | |
| 37 | Humphreys County | Medium | 0.71 / yr | $111K | |
| 38 | Lincoln County | Low | 0.85 / yr | $105K | |
| 39 | Greene County | Low | 0.18 / yr | $98K | |
| 40 | Coffee County | Low | 0.71 / yr | $128K | |
| 41 | Carter County | Low | 0.48 / yr | $89K | |
| 42 | Macon County | Low | 0.72 / yr | $101K | |
| 43 | Lawrence County | Low | 0.77 / yr | $96K | |
| 44 | Bedford County | Low | 0.67 / yr | $111K | |
| 45 | Hamblen County | Low | 0.19 / yr | $96K | |
| 46 | Franklin County | Low | 0.90 / yr | $113K | |
| 47 | Benton County | Low | 0.70 / yr | $89K | |
| 48 | Cocke County | Low | 0.28 / yr | $69K | |
| 49 | Monroe County | Low | 0.47 / yr | $74K | |
| 50 | Campbell County | Low | 0.39 / yr | $69K | |
| 51 | Giles County | Low | 0.71 / yr | $77K | |
| 52 | Jefferson County | Low | 0.22 / yr | $76K | |
| 53 | Hickman County | Low | 0.71 / yr | $67K | |
| 54 | Marshall County | Low | 0.68 / yr | $108K | |
| 55 | McMinn County | Low | 0.47 / yr | $67K | |
| 56 | Warren County | Low | 0.64 / yr | $61K | |
| 57 | White County | Low | 0.74 / yr | $57K | |
| 58 | Marion County | Low | 0.76 / yr | $54K | |
| 59 | Scott County | Low | 0.63 / yr | $49K | |
| 60 | Hawkins County | Low | 0.14 / yr | $44K | |
| 61 | Overton County | Low | 0.61 / yr | $50K | |
| 62 | Houston County | Low | 0.73 / yr | $50K | |
| 63 | Jackson County | Low | 0.74 / yr | $30K | |
| 64 | Henderson County | Low | 0.67 / yr | $41K | |
| 65 | Claiborne County | Low | 0.23 / yr | $37K | |
| 66 | Hardin County | Low | 0.78 / yr | $31K | |
| 67 | Johnson County | Low | 0.31 / yr | $29K | |
| 68 | Rhea County | Low | 0.49 / yr | $40K | |
| 69 | Fentress County | Low | 0.64 / yr | $29K | |
| 70 | Grundy County | Low | 0.75 / yr | $24K | |
| 71 | Morgan County | Low | 0.64 / yr | $37K | |
| 72 | Hardeman County | Low | 0.58 / yr | $25K | |
| 73 | Grainger County | Low | 0.25 / yr | $30K | |
| 74 | Moore County | Low | 0.86 / yr | $34K | |
| 75 | Lewis County | Low | 0.73 / yr | $35K | |
| 76 | Clay County | Low | 0.71 / yr | $28K | |
| 77 | Polk County | Low | 0.60 / yr | $24K | |
| 78 | Wayne County | Low | 0.77 / yr | $24K | |
| 79 | DeKalb County | Low | 0.68 / yr | $29K | |
| 80 | Unicoi County | Low | 0.21 / yr | $26K | |
| 81 | Union County | Low | 0.31 / yr | $26K | |
| 82 | Sullivan County | Low | 0.07 / yr | $26K | |
| 83 | McNairy County | Low | 0.63 / yr | $24K | |
| 84 | Trousdale County | Very Low | 0.68 / yr | $34K | |
| 85 | Cannon County | Very Low | 0.65 / yr | $22K | |
| 86 | Chester County | Very Low | 0.57 / yr | $21K | |
| 87 | Decatur County | Very Low | 0.67 / yr | $16K | |
| 88 | Sequatchie County | Very Low | 0.63 / yr | $20K | |
| 89 | Perry County | Very Low | 0.69 / yr | $13K | |
| 90 | Bledsoe County | Very Low | 0.58 / yr | $14K | |
| 91 | Meigs County | Very Low | 0.47 / yr | $13K | |
| 92 | Pickett County | Very Low | 0.60 / yr | $12K | |
| 93 | Smith County | Very Low | 0.71 / yr | $18K | |
| 94 | Hancock County | Very Low | 0.15 / yr | $6K | |
| 95 | Van Buren County | Very Low | 0.60 / yr | $7K |
95 Tennessee counties with measurable ice storm risk. See the national ice storm ranking or all Tennessee counties by overall risk.
Frequently Asked Questions
Which Tennessee county has the highest ice storm risk?
Knox County has the highest FEMA ice storm risk score in Tennessee at 92.3 (High), with $1M in expected annual losses and about 0.37 events per year.
How many Tennessee counties face significant ice storm risk?
95 Tennessee counties record measurable ice storm risk in FEMA's National Risk Index; 13 of them are rated High or Very High.