Decks in Festus, MO: we connect you with top-rated local deck builders, checked by our team — their proposals come straight to your Homeshi account. Free for property owners.
Decks in Festus: July highs average about 89°F; about 44 inches of rain fall a year.
In Jefferson County, July highs average about 89°F and January lows about 23°F, with roughly 44 inches of rain a year.
Over the last 10 years the National Weather Service recorded hailstorms, damaging thunderstorm winds and flash floods in Jefferson County, with hail up to 3 inches across. After a storm, a quick roof and gutter check catches damage before it turns into a leak.
Jefferson County has had 20 federal disaster declarations in the last 25 years, most often for severe storms; the latest was Severe Storms, Straight-Line Winds, Tornadoes, And Wildfires (2025).
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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 Jefferson County figures — more about homes in Arnold.
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