Ice dam risk in Bay St. Louis, MS
Will your roof get ice dams in Bay St. Louis, MS?
0.0 dam days a winter
Almost never. An ordinary house in Bay St. Louis sees 0.0 days a winter when an ice dam can form, because snow rarely stays on a roof long enough below freezing.
Bay St. Louis averages 0 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 Bay St. Louis?
- 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.
Bay St. Louis winter, month by month
| Month | Snow (in) | Days on ground | Dam days |
|---|---|---|---|
| March | 0.1 | 0.0 | 0.0 |
| December | 0.1 | 0.0 | 0.0 |
Bay St. Louis next to nearby towns
Bay St. Louis ranks 41 of 41 Mississippi cities here for ice-dam days, behind Southaven at 0.2 days.
- Long Beach, MS 12 mi, 0.0 days
- Gulfport, MS 19 mi, 0.0 days
- Picayune, MS 23 mi, 0.0 days
- Slidell, LA 25 mi, 0.0 days
- Biloxi, MS 26 mi, 0.0 days
Where these numbers come from
NOAA 1991–2020 climate normals from Gulfport Naval Center, 14.6 miles from Bay St. Louis. 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.