Ice dam risk in Oroville, CA
How often ice dams form in Oroville
0.0 dam days a winter
Almost never. An ordinary house in Oroville sees 0.0 days a winter when an ice dam can form, because snow rarely stays on a roof long enough below freezing.
Oroville 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 Oroville?
- 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.
Oroville winter, month by month
| Month | Snow (in) | Days on ground | Dam days |
|---|---|---|---|
| February | 0.1 | 0.0 | 0.0 |
Oroville next to nearby towns
Oroville ranks 302 of 376 California cities here for ice-dam days, behind Truckee at 36.3 days.
- Chico, CA 23 mi, 0.0 days
- Marysville, CA 24 mi, 0.0 days
- Yuba City, CA 26 mi, 0.0 days
- Grass Valley, CA 33 mi, 0.2 days
- Lincoln, CA 45 mi, 0.0 days
Where these numbers come from
NOAA 1991–2020 climate normals from Paradise, 18.2 miles from Oroville. 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 Oroville, so the snow figures may run high or low for the town itself.