Ice dam risk in Elon, NC
Ice dams in Elon, NC: how often
1.0 dam days a winter
Almost never. An ordinary house in Elon sees 1.0 day a winter when an ice dam can form, because snow rarely stays on a roof long enough below freezing.
Elon averages 7 inches of snow a year and about 6 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.
What your attic does to that number in Elon
| Attic | Dam days | Risk |
|---|---|---|
| Air-sealed and well insulated | 0.8 | Very unlikely |
| Typical, some insulation, not air-sealed | 1.0 | Very unlikely |
| Older or poorly insulated, warm attic | 1.1 | Low |
The attic matters less in Elon than in colder towns: there are only 0.2 days a winter between a typical attic and a sealed one.
Do you need to do anything in Elon?
- 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.
Elon winter, month by month
| Month | Snow (in) | Days on ground | Dam days |
|---|---|---|---|
| January | 2.9 | 2.5 | 0.5 |
| February | 2.1 | 1.8 | 0.3 |
| March | 0.8 | 0.5 | 0.0 |
| December | 1.5 | 1.1 | 0.2 |
Elon next to nearby towns
Elon ranks 10 of 91 North Carolina cities here for ice-dam days, behind Boone at 4.9 days.
- Burlington, NC 3 mi, 0.0 days
- Graham, NC 7 mi, 0.0 days
- Mebane, NC 13 mi, 0.0 days
- Greensboro, NC 18 mi, 0.8 days
- Reidsville, NC 19 mi, 1.0 days
Where these numbers come from
NOAA 1991–2020 climate normals from Reidsville 2 NW, 21.8 miles from Elon. 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.