Ice Dam Prevention in California

In California, local ice dams deadlines run from Nov 15 to Nov 15, with a median around Nov 15 — a spread of weeks that a single statewide date would miss. Find your city below; each links to local freeze odds, a live 10-day outlook, and a checklist.

Icicles forming along a snowy roof edge — an early warning sign of ice dams backing water under the shingles — California deadlines city by city — Photo: Valeria Boltneva / Pexels

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Notable cities

All California cities

City	Local deadline	Median first 28°F
Lincoln	Nov 15	Dec 22	View →	Checklist

Ice Dam Prevention in California: related searches

California homeowners search for: ice dam removal cost, ice dam steaming, and "ice dam prevention near me" — every city page below answers those with local NOAA dates.

ice dam removal costice dam steamingroof rake for snow removalattic air sealingattic insulation R-valueheat cable for roofcalcium chloride sock ice damice and water shield

Back to the national Ice Dam Prevention guide, or see the methodology. You can also compare how the ice dam prevention window shifts in Arkansas and Colorado.

Data: NOAA NCEI 1991–2020 U.S. Climate Normals; live outlook by Open-Meteo. Last updated: July 25, 2026.