Ice dam risk in Monett, MO
Will your roof get ice dams in Monett, MO?
2.0 dam days a winter
Low risk. On an ordinary house in Monett, conditions for an ice dam come on about 2.0 days in a normal winter, mostly in January and December.
Monett averages 7 inches of snow a year and about 10 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 Monett
| Attic | Dam days | Risk |
|---|---|---|
| Air-sealed and well insulated | 1.4 | Low |
| Typical, some insulation, not air-sealed | 2.0 | Low |
| Older or poorly insulated, warm attic | 2.7 | Low |
The attic matters less in Monett than in colder towns: there are only 0.6 days a winter between a typical attic and a sealed one.
Preventing ice dams on a Monett roof
- 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.
Monett winter, month by month
| Month | Snow (in) | Days on ground | Dam days |
|---|---|---|---|
| January | 2.4 | 3.3 | 0.8 |
| February | 1.1 | 2.4 | 0.5 |
| March | 1.9 | 0.8 | 0.1 |
| November | 0.2 | 0.3 | 0.0 |
| December | 1.1 | 2.9 | 0.6 |
Monett next to nearby towns
Monett ranks 71 of 80 Missouri cities here for ice-dam days, behind Maryville at 9.3 days.
- Neosho, MO 25 mi, 0.1 days
- Carthage, MO 27 mi, 0.1 days
- Republic, MO 33 mi, 2.7 days
- Joplin, MO 33 mi, 0.1 days
- Webb City, MO 33 mi, 0.1 days
Where these numbers come from
NOAA 1991–2020 climate normals from Monett 4SW, 4.6 miles from Monett. 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.