Ice dam risk in Sevierville, TN
Will your roof get ice dams in Sevierville, TN?
0.3 dam days a winter
Almost never. An ordinary house in Sevierville sees 0.3 days a winter when an ice dam can form, because snow rarely stays on a roof long enough below freezing.
Sevierville averages 4 inches of snow a year and about 2 days with snow on the ground. Too little lies on the roof for long. The conditions that make a dam need all three at once: snow, cold at the eave and heat above it.
Do you need to do anything in Sevierville?
- Nothing for ice dams. If you are buying here and an inspector mentions water at the eaves, ask what they saw: it is far more likely a gutter, flashing or drip-edge problem than ice.
Snowy places are not always the worst: why snowfall misleads.
Sevierville winter, month by month
| Month | Snow (in) | Days on ground | Dam days |
|---|---|---|---|
| January | 1.5 | 1.0 | 0.2 |
| February | 1.0 | 0.5 | 0.1 |
| March | 0.9 | 0.1 | 0.0 |
| December | 0.2 | 0.2 | 0.0 |
Sevierville next to nearby towns
Sevierville ranks 36 of 65 Tennessee cities here for ice-dam days, behind Crossville at 2.6 days.
- Knoxville, TN 21 mi, 0.5 days
- Alcoa, TN 22 mi, 0.5 days
- Maryville, TN 24 mi, 0.5 days
- Morristown, TN 27 mi, 0.8 days
- Farragut, TN 34 mi, 0.3 days
Where these numbers come from
NOAA 1991–2020 climate normals from Sevierville, 3.0 miles from Sevierville. A dam day is a day with snow on the roof and freezing at the eave while heat or sun melts the snow above it. This describes a normal winter, not this one.