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Decks in Blenheim: July highs average about 92°F; about 46 inches of rain fall a year.
In Marlboro County, July highs average about 92°F and January lows about 33°F, with roughly 46 inches of rain a year.
Over the last 10 years the National Weather Service recorded damaging thunderstorm winds, flash floods and hailstorms in Marlboro County, with hail up to 1 inches across. After a storm, a quick roof and gutter check catches damage before it turns into a leak.
The typical home in Marlboro County was built around 1987, about 39 years ago, and 35% were built before 1980.
Marlboro County has had 21 federal disaster declarations in the last 25 years, most often for hurricanes; the latest was Severe Winter Storm (2026).
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Composite costs more up front and needs almost no care; pressure-treated wood is cheaper but needs sealing.
Once a year — loose boards, soft spots and wobbly railings are safety issues.
These are Marlboro County figures — more about homes in Bennettsville.
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