Ice dam risk in James Island, SC
Will your roof get ice dams in James Island, SC?
0.0 dam days a winter
Almost never. An ordinary house in James Island sees 0.0 days a winter when an ice dam can form, because snow rarely stays on a roof long enough below freezing.
James Island averages 0 inches of snow a year and about 0 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 James Island?
- 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.
James Island winter, month by month
| Month | Snow (in) | Days on ground | Dam days |
|---|---|---|---|
| January | 0.2 | 0.2 | 0.0 |
| February | 0.1 | 0.0 | 0.0 |
James Island next to nearby towns
James Island ranks 40 of 42 South Carolina cities here for ice-dam days, behind Greenville at 0.3 days.
- Mount Pleasant, SC 7 mi, 0.0 days
- Charleston, SC 7 mi, 0.0 days
- Hanahan, SC 14 mi, 0.0 days
- North Charleston, SC 15 mi, 0.0 days
- Goose Creek, SC 18 mi, 0.0 days
Where these numbers come from
NOAA 1991–2020 climate normals from Charleston International Airport, 12.8 miles from James Island. 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.