Ice dam risk in Brentwood, CA
How often ice dams form in Brentwood
0.0 dam days a winter
Almost never. An ordinary house in Brentwood sees 0.0 days a winter when an ice dam can form, because snow rarely stays on a roof long enough below freezing.
Brentwood 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 Brentwood?
- 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.
Brentwood next to nearby towns
Brentwood ranks 141 of 376 California cities here for ice-dam days, behind Truckee at 36.3 days.
- Oakley, CA 4 mi, 0.0 days
- Antioch, CA 5 mi, 0.0 days
- Pittsburg, CA 11 mi, 0.0 days
- Clayton, CA 12 mi, 0.0 days
- Concord, CA 16 mi, 0.0 days
Where these numbers come from
NOAA 1991–2020 climate normals from Antioch Pumping Plt #3, 3.8 miles from Brentwood. 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.
- The nearest weather station sits at a noticeably different elevation from Brentwood, so the snow figures may run high or low for the town itself.