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Rock Island County, Illinois

Gutter cleaning, repair and new gutters in Andalusia, IL

Rain in Andalusia adds up to about 39 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 13.5 inches; the driest is winter (December to February), with 5.3. Every 1,000 square feet of roof sheds about 24,100 gallons a year, and all of it goes through the gutters.

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Andalusia: rain and roofs

NOAA station USC00117391, 10 mi
38.8 in
Rain in a normal year, Andalusia
NOAA normal, ROCK ISLAND L&D 15
10.1
Days with an inch or more
a year
24,100 gal
Water off 1,000 sq ft of roof in Andalusia
0.62 gal per sq ft per inch
7.76 in/hr
5-minute downpour, once in 10 years
NOAA Atlas 14 Volume 2
Oct 22
First fall frost
median date
1968
Median year homes were built
ACS 2020–2024
82%
Homes built before 1980
ACS 2020–2024
Winter5.3 in
Spring11.6 in
Summer13.5 in
Fall8.5 in

Bars to one scale; the longest is summer (June to August).

For days with an inch of rain or more, Andalusia ranks near the middle of the 695 places in Illinois on this site (10.1 a year). By the age of its homes it sits near the middle of the 695 places in Illinois on this site (half built by 1968). The first frost here ranks near the middle of the 695 places in Illinois on this site (October 22).

When to clean gutters in Andalusia

The first fall frost comes around October 22 in a typical year here, and the last spring frost around April 19 (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 Andalusia rain

What overwhelms a gutter is a burst, not a season. In Andalusia the five-minute rain expected about once in ten years falls at 7.76 inches an hour (NOAA Atlas 14 Volume 2). At that rate one 2-by-3-inch downspout drains about 930 square feet of roof and one 3-by-4-inch downspout about 1,860, 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.

Andalusia averages about 36 inches of snow a year (NOAA normals). Snow on a roof brings ice dams: heat escaping from the house melts the snow, and the water refreezes at the cold eave, in the gutter and over it. University of Minnesota Extension puts the cause in the attic, not in the gutter, so a gutter that fills with ice is a symptom; hangers spaced to carry ice and a sound fascia are what the gutter itself needs.

The houses in Andalusia

Half the homes in Andalusia were built by 1968, 82% 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.

87% of households own their home, and 90% of homes are detached houses, 1% townhouses. Where an HOA governs the exterior, its rules on gutter color and style apply before any order is placed.

Hiring in Illinois

Before hiring in Andalusia, ask which Illinois license or registration the contractor holds and for a certificate of liability insurance. Hiring a gutter contractor

Gutter work in Andalusia

With half the homes built by 1968, replacement gutters and the fascia behind them come up more often here than in newer suburbs. The line takes all of it:

Nearby

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