Click the links below to explore the temperature and precipitation data across north and central Georgia for the month of August 2023.

Temperature Maps 

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Precipitation Maps

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Temperature Graphs 

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Precipitation Graphs 

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Temperature and precipitation records at our 4 main climate sites are located below.

Larger events that occurred across north and central Georgia this past August can be found here.

August 3rd thunderstorms:

PWAT’s exceeding 2 inches and DCAPE in the excess of 1000+ J/KG were the ingredients for a straight-line wind event that damaged trees and knocked out power to many people across north and central Georgia on August 3rd. Due to the northwest flow the line was able to hold together and move southward across most of the CWA.

August 6th Thunderstorms: 

On August 6th three lines of severe weather came through prompting multiple severe thunderstorm warnings across much of north and central Georgia as early as the early afternoon. CAPE values near 5000 J/KG, strong northwest flow, and high PWATs contributed to storms forming quickly and then congealing into lines. After the first line came through, cloud cover quickly diminished which allowed the atmosphere to recover quickly and storms the second and third line to move through causing more wind damage in areas that had already been hit.

August 7th Thunderstorms:

By 18z on August 7th, CAPE values were 5000 J/KG along with moderate shear values, 1400 J/KG DCAPE and lapse rates close to 8 C/KM. This would be the fuel for a significant damaging wind event across north and central Georgia. The first warning of the day for Dade County was a considerable severe thunderstorm warning for 70 mph winds. Throughout the afternoon as the line moves southward causing widespread tree damage, a secondary set of storms began in central and western Georgia which led to a considerable severe thunderstorm warning being issued for the office at Peachtree City and the Atlanta metro. The highest wind gust reported was at Peachtree DeKalb Airport at 71 mph. Ultimately widespread tree damage was reported across almost every single of our 96 counties.

August 8th Thunderstorms:

As the boundary that caused the storms on August 7th moves southward, 6000 J/KG of CAPE was analyzed at 4 pm over central and southern Georgia. This, in addition to the clearing cloud cover allowed for storms to form in a ripe environment for severe weather. As the storms formed, they quickly congealed into a line of strong to severe storms that caused widespread tree damage across central and southern Georgia.

August 12th Thunderstorms:

After a momentary break in widespread severe weather, northwest flow set back up with a quick shortwave that came through Tennessee into north Georgia. This was the main forcing factor for another MCS system. In the afternoon, a line was able to continue into North Georgia while another line formed in western GA just west of the metro which with 2000-3000 J/kg of CAPE was able to produce widespread tree damage across the metro and western Georgia.

August 15th Thunderstorms:

For our final northwest flow event, deep troughing was set up over much of the eastern United States dipping into Georgia. This along with 4000-5000 J/KG of CAPE and PWATs close to 2 inches provided the necessary fuel for a wind damage event. The first line started off extending from Athens to the south metro, while another line was forming to the NW of the metro. Eventually these lines would merge into one and push into central Georgia, causing widespread tree damage across central Georgia.

August 28th Thunderstorms:

Early on the 28th a surface boundary set up over the Athens area stretching into metro Atlanta, which caused showers and thunderstorms to build and stay stationary for around 6 hours. Slow Storm motion in addition to record breaking PWATs allowed for these showers and storms to be efficient rainfall producers with rainfall rates close to 4”/hour. Ultimately three flash flood warnings were issued with two being upgraded to considerable after seeing the high rain rates and 7-8 inches of rain had fallen. We had multiple reports of flooding over roadways mainly over Morgan and Walton counties in addition to a number of our hydro gauges flooding. Later that evening high rainfall rate thunderstorms set up over the Atlanta metro which ultimately led to 3-4 inches of rainfall which flooded many streets as well as caused many hydro gauges to go into minor flooding.

August 29th Thunderstorms:

Early on the 29th a surface boundary set up north Georgia, which caused showers and thunderstorms to build and stay stationary for around 6 hours. Slow Storm motion in addition to record breaking PWATs allowed for these showers and storms to be efficient rainfall producers with rainfall rates close to 4”/hour. Ultimately four flash flood warnings were issued with two being upgraded to considerable after seeing the high rain rates and 4-5 inches of rain had fallen. We had multiple reports of flooding over roadways especially over the city of Calhoun with apartments being flooded as well. In addition, a number of our hydro gauges went into minor flooding in the areas with flash flood warnings. Later that evening along the surface front, high rainfall rate thunderstorms set up over the Atlanta metro which ultimately led to 3-4 inches of rainfall which flooded many streets as well as caused many hydro gauges to go into minor flooding.

Hurricane Idalia - August 30th Thunderstorms:

As the boundary that caused the storms on August 7th moves southward, 6000 J/KG of CAPE was analyzed at 4 pm over central and southern Georgia. This, in addition to the clearing cloud cover allowed for storms to form in a ripe environment for severe weather. As the storms formed, they quickly congealed into a line of strong to severe storms that caused widespread tree damage across central and southern Georgia.

The September climate outlook is below.

September Outlook

Based on the Climate Prediction Center's outlook for September, Georgia has a 40% to 50% chance for above normal temperatures. North and central Georgia have a equal chances of above or below normal precipitation.

Data prepared by NWS Peachtree City/Atlanta.