Ice dam risk in Harrison, AR
Ice dams in Harrison, AR: how often
0.3 dam days a winter
Almost never. An ordinary house in Harrison sees 0.3 days a winter when an ice dam can form, because snow rarely stays on a roof long enough below freezing.
Harrison averages 10 inches of snow a year and about 3 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 Harrison?
- 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.
Harrison winter, month by month
| Month | Snow (in) | Days on ground | Dam days |
|---|---|---|---|
| January | 2.2 | 0.5 | 0.1 |
| February | 3.4 | 1.1 | 0.1 |
| March | 2.2 | 0.4 | 0.0 |
| November | 0.2 | 0.0 | 0.0 |
| December | 1.5 | 0.5 | 0.1 |
Harrison next to nearby towns
Harrison ranks 20 of 39 Arkansas cities here for ice-dam days, behind Springdale at 1.2 days.
- Branson, MO 27 mi, 1.5 days
- Mountain Home, AR 41 mi, 0.2 days
- Ozark, MO 55 mi, 3.9 days
- Nixa, MO 56 mi, 2.8 days
- Pea Ridge, AR 58 mi, 1.2 days
Where these numbers come from
NOAA 1991–2020 climate normals from Harrison, 3.3 miles from Harrison. 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.
- Snow-on-the-ground counts come from a second, nearby station, because the closest one does not record them.