8 cities and communities

Gutter cleaning, repair and new gutters in Clayton County

53 inches a year, 15 of those days bringing an inch or more: that is what gutters in Clayton County handle. Winter (December to February) is the wettest stretch (14.8 in). Each 1,000 square feet of roof drains 32,800 gallons a year.

Call (888) 217-8865 free call to a gutter contractor in Clayton County

Clayton County: rain and roofs

NOAA station USC00094700, 4 mi

52.9″

Clayton County: yearly rain

JONESBORO station

15.1

Inch-plus rain days

per year

32,800

Roof runoff, Clayton County

gallons per 1,000 sq ft a year

7.79″/hr

Design burst

5 min, 10-year (Atlas 14)

Nov 12

Frost arrives

median first fall frost

1988

Typical house built

median, Census ACS

36%

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).

Cities and communities in Clayton County

Place	Rain, in	Days ≥ 1 in	First frost	Median year built
Forest Park	50.4	14.9	11/20	1965
Riverdale	52.9	15.1	11/12	1991
College Park	50.4	14.9	11/20	1972
Lovejoy	52.9	15.1	11/12	2007
Irondale	52.9	15.1	11/12	1994
Morrow	52.9	15.1	11/12	1974
Jonesboro	52.9	15.1	11/12	1968
Conley	50.4	14.9	11/20	1983

NOAA 1991–2020 normals by nearest station; ACS 2020–2024. Places of 5,000 people or more.

Stormwater in Clayton County

Streets, drains and runoff in the unincorporated parts of Clayton County are the county’s; in Forest Park, Riverdale, College Park, Lovejoy, Morrow, Jonesboro, the city’s. Ask the county or the city before running a downspout into a street, a ditch or a neighbor’s yard.

Unincorporated communities listed here: Irondale, Conley.

When to clean gutters here

Median frost dates for Clayton County: first in fall about November 12, last in spring about March 25 (NOAA). Wait for the frost and bare branches before the fall cleanout; come back after the yellow spring pollen settles.

Gutter size for the county’s downpours

Think of the five minutes when a storm opens up. For Clayton County, NOAA Atlas 14 puts the ten-year, five-minute burst at 7.79 inches an hour. Using the Copper Development Association rule, that means roughly 920 sq ft of roof per 2×3 downspout, or 1,850 sq ft per 3×4.

The houses

About 105,626 households live in Clayton County; half the homes were built by 1988, and 36% before 1980 (ACS 2020–2024).