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Insulation in Whitwell: July highs average about 86°F; January lows average about 29°F; the typical home was built around 1984 (44% before 1980).
In Marion County, July highs average about 86°F and January lows about 29°F, with roughly 62 inches of rain a year.
Over the last 10 years the National Weather Service recorded damaging thunderstorm winds, hailstorms and floods in Marion County, with hail up to 2.5 inches across. After a storm, a quick roof and gutter check catches damage before it turns into a leak.
The typical home in Marion County was built around 1984, about 42 years ago, and 44% were built before 1980. Homes that age often need updated wiring, plumbing and roofs.
Marion County has had 15 federal disaster declarations in the last 25 years, most often for severe storms; the latest was Severe Winter Storm (2026).
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Uneven rooms, high bills and an attic you can see the joists in are the signs; older homes often have far too little.
Attic insulation and air-sealing usually pay back fastest.
These are Marion County figures — more about homes in Jasper.
Powells Crossroads · Jasper · Signal Mountain · Palmer · Walden · Kimball · Red Bank · Gruetli-Laager