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Insulation in Guernsey: July highs average about 84°F; January lows average about 12°F.
In Poweshiek County, July highs average about 84°F and January lows about 12°F, with roughly 37 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 Poweshiek County, with hail up to 2.75 inches across. After a storm, a quick roof and gutter check catches damage before it turns into a leak.
Poweshiek County has had 10 federal disaster declarations in the last 25 years, most often for severe storms; the latest was Severe Storms, Tornadoes, And Flooding (2024).
Roof repair in Guernsey · AC & heating repair in Guernsey · Plumbing in Guernsey · Electrical in Guernsey · Gutters in Guernsey · Pest control in Guernsey · Lawn care in Guernsey · Pool service in Guernsey · Siding in Guernsey · Windows & doors in Guernsey · Solar in Guernsey · Generators in Guernsey · Insulation in Guernsey · Remodeling in Guernsey · Kitchen remodeling in Guernsey · Bathroom remodeling in Guernsey · Painting in Guernsey · Flooring in Guernsey · Drywall in Guernsey · Concrete & pavers in Guernsey · Fencing in Guernsey · Decks in Guernsey · Tree service in Guernsey · Pressure washing in Guernsey · House cleaning in Guernsey · Junk removal in Guernsey · Garage doors in Guernsey · Appliance repair in Guernsey · Water & mold restoration in Guernsey · Foundation repair in Guernsey · Handyman in Guernsey
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 Poweshiek County figures — more about homes in Grinnell.
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