Ice dam risk in Lebanon, OR
Ice dams in Lebanon, OR: how often
0.0 dam days a winter
Almost never. An ordinary house in Lebanon sees 0.0 days a winter when an ice dam can form, because snow rarely stays on a roof long enough below freezing.
Lebanon averages 2 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 Lebanon?
- 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.
Lebanon winter, month by month
| Month | Snow (in) | Days on ground | Dam days |
|---|---|---|---|
| January | 0.3 | 0.0 | 0.0 |
| February | 0.9 | 0.1 | 0.0 |
| March | 0.1 | 0.0 | 0.0 |
| December | 0.4 | 0.2 | 0.0 |
Lebanon next to nearby towns
Lebanon ranks 51 of 57 Oregon cities here for ice-dam days, behind Klamath Falls at 9.8 days.
- Albany, OR 11 mi, 0.1 days
- Sweet Home, OR 13 mi, 0.0 days
- Corvallis, OR 18 mi, 0.1 days
- Independence, OR 27 mi, 0.2 days
- Monmouth, OR 27 mi, 0.2 days
Where these numbers come from
NOAA 1991–2020 climate normals from Lacomb 3 NNE, 11.3 miles from Lebanon. 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.