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City of Riverdale

Gutter cleaning, repair and new gutters in Riverdale, GA

Metro Atlanta weather, Riverdale edition: 53 inches of rain in an average year and 15 days with an inch or more. Winter (December to February) is the wettest stretch (14.8 in). Picture 32,800 gallons a year coming off each 1,000 square feet of shingles.

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Riverdale: rain and roofs

NOAA station USC00094700, 4 mi
52.9″
Riverdale: yearly rain
JONESBORO station
15.1
Inch-plus rain days
per year
32,800
Roof runoff, Riverdale
gallons per 1,000 sq ft a year
7.78″/hr
Design burst
5 min, 10-year (Atlas 14)
Nov 12
Frost arrives
median first fall frost
1991
Typical house built
median, Census ACS
31%
Pre-1980 houses
Census ACS
Winter14.8 in
Spring12.6 in
Summer14.1 in
Fall11.4 in

Bars to one scale; the longest is winter (December to February).

Riverdale lands near the middle of the 76 places on this site (15.1 a year) on inch-plus rain days. On house age it is near the middle of the 76 places on this site (half built by 1991). For fall frost it is among the latest for the first fall frost of the 76 places on this site (November 12).

Cleanout calendar

Median frost dates for Riverdale: first in fall about November 12, last in spring about March 25 (NOAA). Schedule the leaf cleanout once the frost has come and the hardwoods are bare, and a second pass after the spring pine pollen.

More on the timing, and on how the trees over a roof change it: when to clean gutters in metro Atlanta.

Downpours and downspouts

Summer storms here dump rain in bursts. For Riverdale, NOAA Atlas 14 puts the ten-year, five-minute burst at 7.78 inches an hour. Using the Copper Development Association rule, that means roughly 930 sq ft of roof per 2×3 downspout, or 1,850 sq ft per 3×4.

Work out your own roof with the gutter size calculator, which uses this figure for Riverdale.

Riverdale’s houses

The typical house in Riverdale dates to 1991, and 31% predate 1980 (Census ACS). Original gutters on houses this age are near the end of their run; check the wood they hang on too.

Owners occupy 52% of homes; 64% are single-family detached and 7% attached. In HOA neighborhoods, ask the association first.

Runoff, drains and the county

Riverdale is an incorporated city, so questions about street drains, ditches and runoff start with the city’s public works office; Clayton County answers for the unincorporated areas around it. The gutter’s job ends at the downspout: water let out next to the foundation can come back as a wet crawl space or a washed-out bed. Downspouts and drainage

Common calls from Riverdale

Mostly newer houses (median 1991): cleanouts, guards and small fixes lead.

Next door

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