Ice dam risk in Owensboro, KY
Ice dams in Owensboro, KY: how often
2.3 dam days a winter
Low risk. On an ordinary house in Owensboro, conditions for an ice dam come on about 2.3 days in a normal winter, mostly in January and February.
Owensboro averages 4 inches of snow a year and about 12 days with snow on the ground. Most of it comes and goes within a few days. 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 Owensboro
| Attic | Dam days | Risk |
|---|---|---|
| Air-sealed and well insulated | 1.6 | Low |
| Typical, some insulation, not air-sealed | 2.3 | Low |
| Older or poorly insulated, warm attic | 3.1 | Low |
The attic matters less in Owensboro than in colder towns: there are only 0.7 days a winter between a typical attic and a sealed one.
Preventing ice dams on a Owensboro roof
- Check the gutters before the first snow and clear them, so meltwater has somewhere to go. If you see icicles thicker than a finger along the eave after a storm, that is the early sign to look at the attic.
Snowy places are not always the worst: why snowfall misleads.
Owensboro winter, month by month
| Month | Snow (in) | Days on ground | Dam days |
|---|---|---|---|
| January | 0.9 | 4.2 | 1.0 |
| February | 1.3 | 3.6 | 0.8 |
| March | 0.6 | 0.9 | 0.1 |
| December | 1.5 | 2.7 | 0.5 |
Owensboro next to nearby towns
Owensboro ranks 17 of 42 Kentucky cities here for ice-dam days, behind Fort Thomas at 6.8 days.
- Henderson, KY 26 mi, 0.1 days
- Evansville, IN 28 mi, 1.6 days
- Madisonville, KY 36 mi, 0.6 days
- Jasper, IN 45 mi, 4.1 days
- Washington, IN 62 mi, 2.0 days
Where these numbers come from
NOAA 1991–2020 climate normals from Calhoun Lock 2, 17.6 miles from Owensboro. 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.