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McHenry County, Illinois

Gutter cleaning, repair and new gutters in Crystal Lake, IL

Rain in Crystal Lake adds up to about 39 inches in a normal year, with about 9 days that bring an inch or more. The wettest season is summer (June to August), with about 13.0 inches; the driest is winter (December to February), with 5.9. That is about 24,400 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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Crystal Lake: rain and roofs

NOAA station USC00112048, 4 mi
39.4 in
Rain in a normal year, Crystal Lake
NOAA normal, CRYSTAL LAKE 4NW
9.0
Days with an inch or more
a year
24,400 gal
Water off 1,000 sq ft of roof in Crystal Lake
0.62 gal per sq ft per inch
7.33 in/hr
5-minute downpour, once in 10 years
NOAA Atlas 14 Volume 2
Oct 22
First fall frost
median date
1986
Median year homes were built
ACS 2020–2024
42%
Homes built before 1980
ACS 2020–2024
Winter5.9 in
Spring11.3 in
Summer13.0 in
Fall9.2 in

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

Counting days with an inch of rain or more, Crystal Lake sits near the middle of the 695 places in Illinois on this site (9.0 a year). By house age it falls among the newest by median year built of the 695 places in Illinois on this site (half built by 1986). By its first fall frost it sits near the middle of the 695 places in Illinois on this site (October 22).

When to clean gutters in Crystal Lake

The first fall frost comes around October 22 in a typical year here, and the last spring frost around April 25 (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 Crystal Lake rain

What overwhelms a gutter is a burst, not a season. In Crystal Lake the five-minute rain expected about once in ten years falls at 7.33 inches an hour (NOAA Atlas 14 Volume 2). At that rate one 2-by-3-inch downspout drains about 980 square feet of roof and one 3-by-4-inch downspout about 1,960, 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.

With about 35 inches of snow in a normal year here (NOAA normals), gutters carry ice as well as water. Ice dams start with heat from the house melting roof snow that refreezes at the edge (University of Minnesota Extension); the fix for the dam is in the attic, and the gutter’s part is to be hung strongly enough to take the weight.

The houses in Crystal Lake

Half the homes in Crystal Lake were built by 1986, 42% 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.

78% of households own their home, and 68% of homes are detached houses, 11% 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 Crystal Lake what Illinois requires of them for gutter work, and to show proof of insurance. Hiring a gutter contractor

Gutter work in Crystal Lake

In a neighborhood with half its homes built by 1986, the usual calls are cleaning, guards and small repairs. The line takes all of it:

Nearby

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