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Will County, Illinois

Gutter cleaning, repair and new gutters in Manhattan, IL

A normal year in Manhattan brings about 38 inches of rain; on roughly 8 of its days, an inch or more comes down at once. The wettest season is summer (June to August), with about 12.8 inches; the driest is winter (December to February), with 5.7. That is about 23,600 gallons a year off each 1,000 square feet of roof, every drop of it through a gutter and a downspout.

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Manhattan: rain and roofs

NOAA station USC00114530, 9 mi
38.0 in
Rain in a normal year, Manhattan
NOAA normal, JOLIET BRANDON RD DAM
8.3
Days with an inch or more
a year
23,600 gal
Water off 1,000 sq ft of roof in Manhattan
0.62 gal per sq ft per inch
7.02 in/hr
5-minute downpour, once in 10 years
NOAA Atlas 14 Volume 2
Oct 25
First fall frost
median date
2004
Median year homes were built
ACS 2020–2024
22%
Homes built before 1980
ACS 2020–2024
Winter5.7 in
Spring10.7 in
Summer12.8 in
Fall8.8 in

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

Counting days with an inch of rain or more, Manhattan sits among the fewest heavy-rain days of the 695 places in Illinois on this site (8.3 a year). Its housing ranks among the newest by median year built of the 695 places in Illinois on this site (half built by 2004). By its first fall frost it sits among the latest for the first fall frost of the 695 places in Illinois on this site (October 25).

When to clean gutters in Manhattan

The first fall frost comes around October 25 in a typical year here, and the last spring frost around April 19 (median dates, NOAA normals). Booking the fall cleaning after the first frost, once the trees over the roof are bare, catches the season’s drop in one visit; the spring cleaning comes after the pollen and catkins are down.

When to clean gutters explains how the trees over a roof change the schedule.

Gutter and downspout size for Manhattan rain

What overwhelms a gutter is a burst, not a season. In Manhattan the five-minute rain expected about once in ten years falls at 7.02 inches an hour (NOAA Atlas 14 Volume 2). At that rate one 2-by-3-inch downspout drains about 1,030 square feet of roof and one 3-by-4-inch downspout about 2,050, 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 Manhattan

Half the homes in Manhattan were built by 2004, 22% before 1980 (ACS 2020–2024). In a neighborhood that young, many houses still have the gutters the builder put up, and the usual call is a cleaning, a leak or guards rather than a full replacement.

88% of households own their home, and 68% of homes are detached houses, 24% townhouses. In a townhouse or HOA community, check who owns the gutters and what colors are allowed before booking.

Hiring in Illinois

Ask any contractor working in Manhattan what Illinois requires of them for gutter work, and to show proof of insurance. Hiring a gutter contractor

Gutter work in Manhattan

In a neighborhood with half its homes built by 2004, the usual calls are cleaning, guards and small repairs. The line takes all of it:

Nearby

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