Ice dam risk in Jacksonville, NC
Will your roof get ice dams in Jacksonville, NC?
0.0 dam days a winter
Almost never. An ordinary house in Jacksonville sees 0.0 days a winter when an ice dam can form, because snow rarely stays on a roof long enough below freezing.
Jacksonville averages 1 inch 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 Jacksonville?
- 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.
Jacksonville winter, month by month
| Month | Snow (in) | Days on ground | Dam days |
|---|---|---|---|
| January | 0.4 | 0.1 | 0.0 |
| February | 0.2 | 0.2 | 0.0 |
Jacksonville next to nearby towns
Jacksonville ranks 79 of 91 North Carolina cities here for ice-dam days, behind Boone at 4.9 days.
- Havelock, NC 31 mi, 0.0 days
- New Bern, NC 31 mi, 0.1 days
- Kinston, NC 39 mi, 0.0 days
- Wilmington, NC 46 mi, 0.1 days
- Leland, NC 51 mi, 0.1 days
Where these numbers come from
NOAA 1991–2020 climate normals from NEW Rvr Mcaf, 3.0 miles from Jacksonville. 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.