Ice dam risk in Las Vegas, NV

Will your roof get ice dams in Las Vegas, NV?

0.0 dam days a winter

Almost never. An ordinary house in Las Vegas sees 0.0 days a winter when an ice dam can form, because snow rarely stays on a roof long enough below freezing.

Las Vegas 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 Las Vegas?

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.

Las Vegas next to nearby towns

Las Vegas ranks 6 of 10 Nevada cities here for ice-dam days, behind Elko at 14.0 days.

North Las Vegas, NV 10 mi, 0.0 days
Henderson, NV 20 mi, 0.0 days
Boulder City, NV 33 mi, 0.0 days
Mesquite, NV 75 mi, 0.0 days
Bullhead City, AZ 86 mi, 0.0 days

Where these numbers come from

NOAA 1991–2020 climate normals from N Las Vegas, 8.2 miles from Las Vegas. 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.