Ice dam risk in Smyrna, GA
How often ice dams form in Smyrna
0.2 dam days a winter
Almost never. An ordinary house in Smyrna sees 0.2 days a winter when an ice dam can form, because snow rarely stays on a roof long enough below freezing.
Smyrna averages 1 inch of snow a year and about 1 day 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 Smyrna?
- 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.
Smyrna winter, month by month
| Month | Snow (in) | Days on ground | Dam days |
|---|---|---|---|
| January | 0.7 | 0.7 | 0.1 |
| February | 0.2 | 0.2 | 0.0 |
| March | 0.1 | 0.1 | 0.0 |
| December | 0.2 | 0.4 | 0.1 |
Smyrna next to nearby towns
Smyrna ranks 5 of 101 Georgia cities here for ice-dam days, behind Sandy Springs at 0.2 days.
- Mableton, GA 5 mi, 0.2 days
- Marietta, GA 6 mi, 0.2 days
- Atlanta, GA 9 mi, 0.1 days
- Powder Springs, GA 9 mi, 0.2 days
- Sandy Springs, GA 10 mi, 0.2 days
Where these numbers come from
NOAA 1991–2020 climate normals from Mableton 1 N, 3.6 miles from Smyrna. 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.