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Insulation in Galestown: July highs average about 88°F; January lows average about 28°F; the typical home was built around 1972 (59% before 1980).
In Dorchester County, July highs average about 88°F and January lows about 28°F, with roughly 45 inches of rain a year.
Over the last 10 years the National Weather Service recorded damaging thunderstorm winds, flash floods and hailstorms in Dorchester 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 Dorchester County was built around 1972, about 54 years ago, and 59% were built before 1980. Homes that age often need updated wiring, plumbing and roofs.
Dorchester County has had 14 federal disaster declarations in the last 25 years, most often for hurricanes; 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 Dorchester County figures — more about homes in Cambridge.
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