Ice dam risk in Perris, CA
How often ice dams form in Perris
0.0 dam days a winter
Almost never. An ordinary house in Perris sees 0.0 days a winter when an ice dam can form, because snow rarely stays on a roof long enough below freezing.
Perris 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 Perris?
- 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.
Perris winter, month by month
| Month | Snow (in) | Days on ground | Dam days |
|---|---|---|---|
| April | 0.2 | 0.0 | 0.0 |
Perris next to nearby towns
Perris ranks 108 of 376 California cities here for ice-dam days, behind Truckee at 36.3 days.
- Menifee, CA 7 mi, 0.0 days
- Canyon Lake, CA 7 mi, 0.0 days
- Moreno Valley, CA 9 mi, 0.0 days
- Lake Elsinore, CA 10 mi, 0.0 days
- Wildomar, CA 12 mi, 0.0 days
Where these numbers come from
NOAA 1991–2020 climate normals from Elsinore, 10.1 miles from Perris. 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.