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Decks in Oshkosh: July highs average about 82°F; about 33 inches of rain fall a year.
In Winnebago County, July highs average about 82°F and January lows about 10°F, with roughly 33 inches of rain a year. Long, cold winters put furnaces and pipes to the test.
Over the last 10 years the National Weather Service recorded damaging thunderstorm winds, hailstorms and tornadoes in Winnebago 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.
Winnebago County has had 7 federal disaster declarations in the last 25 years, most often for severe storms; the latest was Severe Storms And Tornadoes (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.
Omro · Winneconne · Neenah · Stockbridge · Fox Crossing · Menasha · North Fond du Lac · Rosendale