19 cities and communities

Gutter cleaning, repair and new gutters in DeKalb County

51 inches a year, 15 of those days bringing an inch or more: that is what gutters in DeKalb County handle. Summer (June to August) is the wettest stretch (13.9 in). Picture 31,900 gallons a year coming off each 1,000 square feet of shingles.

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DeKalb County: rain and roofs

NOAA station USW00053863, 8 mi

51.4″

DeKalb County: yearly rain

ATLANTA PEACHTREE AP station

14.8

Inch-plus rain days

per year

31,900

Roof runoff, DeKalb County

gallons per 1,000 sq ft a year

7.82″/hr

Design burst

5 min, 10-year (Atlas 14)

Nov 9

Frost arrives

median first fall frost

1983

Typical house built

median, Census ACS

45%

Pre-1980 houses

Census ACS

Winter13.4 in

Spring12.4 in

Summer13.9 in

Fall11.7 in

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

Cities and communities in DeKalb County

Place	Rain, in	Days ≥ 1 in	First frost	Median year built
Atlanta	48.1	13.6	11/08	1987
Stonecrest	51.1	16.1	11/06	1999
Brookhaven	51.4	14.8	11/09	1992
Dunwoody	51.4	14.8	11/09	1984
Tucker	51.4	14.8	11/09	1980
Redan	51.4	14.8	11/09	1985
Chamblee	51.4	14.8	11/09	1981
Decatur	51.4	14.8	11/09	1975
Candler-McAfee	51.4	14.8	11/09	1963
North Decatur	51.4	14.8	11/09	1974
North Druid Hills	51.4	14.8	11/09	1985
Clarkston	51.4	14.8	11/09	1978
Belvedere Park	51.4	14.8	11/09	1961
Doraville	51.4	14.8	11/09	1972
Scottdale	51.4	14.8	11/09	1984
Panthersville	50.4	14.9	11/20	1976
Druid Hills	51.4	14.8	11/09	1964
Gresham Park	50.4	14.9	11/20	1967
Stone Mountain	51.4	14.8	11/09	1978

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

Stormwater in DeKalb County

DeKalb County charges a stormwater utility fee of $120 a year per equivalent residential unit, and a single-family home or townhome counts as one unit (2025 rate; it was $108 in 2024 and $96 in 2023). Property owners can earn a credit of up to 40% for on-site detention, water-quality treatment and green infrastructure. Cities inside the county can run their own stormwater charge; the property tax or water bill names the one that applies.

Source: DeKalb County, Stormwater Management

Unincorporated communities listed here: Redan, Candler-McAfee, North Decatur, North Druid Hills, Belvedere Park, Scottdale, Panthersville, Druid Hills, Gresham Park.

When to clean gutters here

Median frost dates for DeKalb County: first in fall about November 9, 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.

Gutter size for the county’s downpours

Summer storms here dump rain in bursts. For DeKalb County, NOAA Atlas 14 puts the ten-year, five-minute burst at 7.82 inches an hour. Using the Copper Development Association rule, that means roughly 920 sq ft of roof per 2×3 downspout, or 1,840 sq ft per 3×4.

The houses

About 284,681 households live in DeKalb County; half the homes were built by 1983, and 45% before 1980 (ACS 2020–2024).