IceDamCheck

Ice dam risk in Woodward, OK

Ice dams in Woodward, OK: how often

2.0 dam days a winter

Low risk. On an ordinary house in Woodward, conditions for an ice dam come on about 2.0 days in a normal winter, mostly in January and December.

Woodward averages 12 inches of snow a year and about 8 days with snow on the ground. Most of it comes and goes within a few days. The conditions that make a dam need all three at once: snow, cold at the eave and heat above it.

What your attic does to that number in Woodward

AtticDam daysRisk
Air-sealed and well insulated1.6Low
Typical, some insulation, not air-sealed2.0Low
Older or poorly insulated, warm attic2.5Low

The attic matters less in Woodward than in colder towns: there are only 0.4 days a winter between a typical attic and a sealed one.

Preventing ice dams on a Woodward roof

  1. Check the gutters before the first snow and clear them, so meltwater has somewhere to go. If you see icicles thicker than a finger along the eave after a storm, that is the early sign to look at the attic.

Snowy places are not always the worst: why snowfall misleads.

Woodward winter, month by month

MonthSnow (in)Days on groundDam days
January2.72.70.7
February1.91.90.4
March3.50.90.1
April0.10.00.0
October0.10.00.0
November0.40.30.0
December3.72.60.7

Woodward next to nearby towns

Woodward ranks 1 of 45 Oklahoma cities here for ice-dam days, the worst in the state.

Where these numbers come from

NOAA 1991–2020 climate normals from Ft Supply 3SE, 11.0 miles from Woodward. 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.