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Suffolk County, New York

Gutter cleaning, repair and new gutters in Smithtown, NY

Rain in Smithtown adds up to about 46 inches in a normal year, with about 12 days that bring an inch or more. The wettest season is spring (March to May), with about 11.8 inches; the driest is fall (September to November), with 11.0. That is about 28,500 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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Smithtown: rain and roofs

NOAA station USW00004781, 7 mi
46.0 in
Rain in a normal year, Smithtown
NOAA normal, ISLIP LI MACARTHUR AP
11.5
Days with an inch or more
a year
28,500 gal
Water off 1,000 sq ft of roof in Smithtown
0.62 gal per sq ft per inch
7.64 in/hr
5-minute downpour, once in 10 years
NOAA Atlas 14 Volume 10
Nov 2
First fall frost
median date
1967
Median year homes were built
ACS 2020–2024
76%
Homes built before 1980
ACS 2020–2024
Winter11.7 in
Spring11.8 in
Summer11.5 in
Fall11.0 in

Bars to one scale; the longest is spring (March to May).

For days with an inch of rain or more, Smithtown ranks 183rd for heavy-rain days of the 817 places in New York on this site (11.5 a year). By the age of its homes it sits near the middle of the 810 places in New York on this site (half built by 1967). By its first fall frost it sits near the middle of the 817 places in New York on this site (November 2).

When to clean gutters in Smithtown

The first fall frost comes around November 2 in a typical year here, and the last spring frost around April 10 (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 Smithtown rain

What overwhelms a gutter is a burst, not a season. In Smithtown the five-minute rain expected about once in ten years falls at 7.64 inches an hour (NOAA Atlas 14 Volume 10). At that rate one 2-by-3-inch downspout drains about 940 square feet of roof and one 3-by-4-inch downspout about 1,880, 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.

Smithtown averages about 32 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 Smithtown

Half the homes in Smithtown were built by 1967, 76% 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.

88% of households own their home, and 89% of homes are detached houses, 3% townhouses. In a townhouse or HOA community, check who owns the gutters and what colors are allowed before booking.

Hiring in New York

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

Gutter work in Smithtown

With half the homes built by 1967, 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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