Marion County, Iowa
Gutter cleaning, repair and new gutters in Knoxville, IA
Rain in Knoxville adds up to about 37 inches in a normal year, with about 10 days that bring an inch or more. The wettest season is summer (June to August), with about 13.8 inches; the driest is winter (December to February), with 4.4. That is about 23,200 gallons a year off each 1,000 square feet of roof, every drop of it through a gutter and a downspout.
Call (866) 228-6229 free call to a gutter contractor serving KnoxvilleKnoxville: rain and roofs
NOAA station USC00134502, 0 miBars to one scale; the longest is summer (June to August).
For days with an inch of rain or more, Knoxville ranks 64th for heavy-rain days of the 290 places in Iowa on this site (9.6 a year). By the age of its homes it sits near the middle of the 290 places in Iowa on this site (half built by 1965). By its first fall frost it sits among the latest for the first fall frost of the 290 places in Iowa on this site (October 19).
When to clean gutters in Knoxville
The first fall frost comes around October 19 in a typical year here, and the last spring frost around April 20 (median dates, NOAA normals). Plan the fall visit for after the frost, when the trees over the roof have finished dropping, and the spring visit for after the pollen and catkins.
When to clean gutters explains how the trees over a roof change the schedule.
Gutter and downspout size for Knoxville rain
What overwhelms a gutter is a burst, not a season. In Knoxville the five-minute rain expected about once in ten years falls at 8.02 inches an hour (NOAA Atlas 14 Volume 8). At that rate one 2-by-3-inch downspout drains about 900 square feet of roof and one 3-by-4-inch downspout about 1,800, by the rule in the Copper Development Association’s design handbook. Try your own roof in the gutter and downspout calculator, which starts from this figure.
The houses in Knoxville
Half the homes in Knoxville were built by 1965, 74% before 1980 (ACS 2020–2024). In a neighborhood that age, many houses are on their second set of gutters or due for one, and the fascia board behind them is worth checking at the same visit. On a house built before 1978, replacing more than 20 square feet of painted fascia or trim falls under the EPA’s lead-safe rule, so ask whether the crew is certified.
74% of households own their home, and 77% of homes are detached houses, 2% townhouses. In a townhouse or HOA community, check who owns the gutters and what colors are allowed before booking.
Hiring in Iowa
Ask any contractor working in Knoxville what Iowa requires of them for gutter work, and to show proof of insurance. Hiring a gutter contractor
Gutter work in Knoxville
With half the homes built by 1965, replacement gutters and the fascia behind them come up more often here than in newer suburbs. The line takes all of it: