The National Weather Service forecasts rain here in Cobb County on Tuesday, December 20, 2022, with a high near 42.
There is a 40 percent chance of rain tonight with an overnight low of around 34 degrees.
The National Weather Service issued a hazardous weather outlook for Cobb County and the rest of the region due to the approaching cold weather system.
What does the extended forecast have in store?
This forecast is centered on Dobbins Air Reserve Base in Marietta.
Tuesday
Rain likely, mainly after 7 a.m. Cloudy, with a high near 42. East wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70 percent.
Tuesday Night
A 40 percent chance of rain, mainly before 9 p.m. Mostly cloudy, with a low around 34. East wind around 5 mph.
Wednesday
Mostly sunny, with a high near 48. East wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
A 50 percent chance of rain after 8 p.m. Mostly cloudy, with a low around 37. East wind around 10 mph, with gusts as high as 20 mph.
Thursday
A 50 percent chance of rain. Cloudy, with a high near 50.
Thursday Night
Rain showers before 5 a.m, then a chance of rain and snow showers. Low around 14. Chance of precipitation is 80 percent.
Friday
A slight chance of rain and snow showers before 7 a.m. Mostly sunny and cold, with a high near 23. Chance of precipitation is 10 percent.
Friday Night
Mostly clear, with a low around 11.
Saturday
Mostly sunny, with a high near 27.
Saturday Night
Partly cloudy, with a low around 14.
Christmas Day
Sunny, with a high near 31.
Sunday Night
Mostly clear, with a low around 17.
Monday
Mostly sunny, with a high near 38.
What was the climate like in the latest reporting period?
The NWS climate summary for metro Atlanta has now been updated with November figures.
In an article entitled What is the Difference between Climate and Weather?, the National Ocean Service describes the difference as follows:
“Weather is what you see outside on any particular day. So, for example, it may be 75° degrees and sunny or it could be 20° degrees with heavy snow. That’s the weather.
“Climate is the average of that weather. For example, you can expect snow in the Northeast in January or for it to be hot and humid in the Southeast in July. This is climate. The climate record also includes extreme values such as record high temperatures or record amounts of rainfall. If you’ve ever heard your local weather person say “today we hit a record high for this day,” she is talking about climate records.
“So when we are talking about climate change, we are talking about changes in long-term averages of daily weather. In most places, weather can change from minute-to-minute, hour-to-hour, day-to-day, and season-to-season. Climate, however, is the average of weather over time and space.”
The climate report for the Atlanta area for the previous month shows how much departure from the average temperatures that month represents. The average temperature for a date is the average over a 30-year period.
| Date | Max | Min | AVG | Departure from norm | Precipitation |
| 2022-11-01 | 74 | 54 | 64.0 | 5.3 | 0.00 |
| 2022-11-02 | 76 | 57 | 66.5 | 8.2 | 0.00 |
| 2022-11-03 | 75 | 57 | 66.0 | 8.0 | 0.00 |
| 2022-11-04 | 76 | 54 | 65.0 | 7.4 | 0.00 |
| 2022-11-05 | 79 | 62 | 70.5 | 13.2 | T |
| 2022-11-06 | 83 | 68 | 75.5 | 18.6 | 0.00 |
| 2022-11-07 | 83 | 68 | 75.5 | 18.9 | 0.00 |
| 2022-11-08 | 80 | 62 | 71.0 | 14.7 | 0.00 |
| 2022-11-09 | 69 | 51 | 60.0 | 4.0 | 0.00 |
| 2022-11-10 | 68 | 59 | 63.5 | 7.9 | 0.13 |
| 2022-11-11 | 71 | 64 | 67.5 | 12.2 | 0.97 |
| 2022-11-12 | 70 | 42 | 56.0 | 1.0 | T |
| 2022-11-13 | 48 | 33 | 40.5 | -14.2 | 0.00 |
| 2022-11-14 | 55 | 33 | 44.0 | -10.4 | 0.00 |
| 2022-11-15 | 49 | 45 | 47.0 | -7.1 | 0.38 |
| 2022-11-16 | 49 | 39 | 44.0 | -9.8 | 0.00 |
| 2022-11-17 | 47 | 33 | 40.0 | -13.5 | 0.00 |
| 2022-11-18 | 54 | 30 | 42.0 | -11.3 | 0.00 |
| 2022-11-19 | 53 | 33 | 43.0 | -10.0 | 0.00 |
| 2022-11-20 | 47 | 34 | 40.5 | -12.2 | 0.00 |
| 2022-11-21 | 58 | 31 | 44.5 | -8.0 | 0.00 |
| 2022-11-22 | 64 | 44 | 54.0 | 1.8 | T |
| 2022-11-23 | 71 | 43 | 57.0 | 5.1 | 0.00 |
| 2022-11-24 | 63 | 52 | 57.5 | 5.8 | T |
| 2022-11-25 | 66 | 51 | 58.5 | 7.1 | 0.25 |
| 2022-11-26 | 66 | 49 | 57.5 | 6.3 | 0.11 |
| 2022-11-27 | 67 | 53 | 60.0 | 9.1 | 0.54 |
| 2022-11-28 | 65 | 48 | 56.5 | 5.8 | 0.00 |
| 2022-11-29 | 69 | 44 | 56.5 | 6.0 | 0.51 |
| 2022-11-30 | 69 | 41 | 55.0 | 4.7 | 1.34 |
| Sum | 1964 | 1434 | – | – | 4.23 |
| Average | 65.5 | 47.8 | 56.6 | 2.4 | – |
| Normal | 64.1 | 44.2 | 54.2 | – | 3.98 |
| Autumn 2022 Temperature Climate Statistics | |||
| Climate Site | Average Temperature (deg) | Normal Temperature (deg) | DFN (Departure From Normal) |
| Athens | 64.7 | 63.4 | +1.3 |
| Atlanta | 64.7 | 63.6 | +1.1 |
| Columbus | 66.2 | 66.8 | -0.6 |
| Macon | 65.4 | 65.3 | +0.1 |
| Cartersville | 62.0 | 61.1 | +0.9 |
| Dekalb Peachtree Arpt | 62.8 | 62.5 | +0.3 |
| Fulton County Arpt | 62.8 | 62.8 | 0.0 |
| Gainesville | 62.5 | 62.0 | +0.5 |
| Peachtree City | 63.7 | 62.1 | +1.6 |
| Rome | 63.2 | 61.3 | +1.9 |
| Autumn 2022 Average Temperature Ranking & Records | |||
| Climate Site | Avg Temp Rank | Highest Avg Temp Record (deg) (year) | Lowest Avg Temp Record (deg) (year) |
| Athens | 39th Warmest | 67.4 (2016) | 58.4 (1976) |
| Atlanta | 20th Warmest | 69.1 (2016) | 56.7 (1976) |
| Columbus | 32nd Warmest | 70.4 (1985) | 60.9 (1976) |
| Macon | 36th Warmest | 69.4 (1985) | 60.3 (1967) |
| Autumn 2022 Temperature Climate Statistics | ||||
| Climate Site | Maximum Temperature (deg) | Max T Date | Minimum Temperature (deg) | Min T Date |
| Athens | 93 | 9/14 | 28 | 11/24 |
| Atlanta | 88 | 9/13 | 32 | 11/23 |
| Columbus | 92 | 9/7 | 30 | 11/30 |
| Macon | 93 | 9/7 | 27 | 11/24 |
| Cartersville | 88 | 9/14 | 27 | 11/30 |
| Dekalb Peachtree Arpt | 90 | 9/14 | 28 | 11/24 |
| Fulton Co Arpt | 90 | 9/14 | 27 | 11/24 |
| Gainesville | 88 | 9/13 | 29 | 11/23 |
| Peachtree City | 90 | 9/13 | 27 | 11/24 |
| Rome | 91 | 9/14 | 27 | 11/24, 27 |
| Autumn 2022 Average Temperature Climate Statistics | ||
| Climate Site | Average Maximum Temperature (deg) | Average Minimum Temperature (deg) |
| Athens | 74.7 | 51.2 |
| Atlanta | 74.3 | 54.8 |
| Columbus | 77.3 | 55.3 |
| Macon | 78.2 | 52.3 |
| Cartersville | 73.1 | 50.4 |
| Dekalb Peachtree Arpt | 72.4 | 49.5 |
| Fulton Co Arpt | 74.4 | 50.7 |
| Gainesville | 72.5 | 52.3 |
| Peachtree City | 75.6 | 50.9 |
| Rome | 74.9 | 49.5 |
| Average Maximum Temperature Ranking & Records | |||
| Climate Site | Avg Max Temp Rank | Highest Avg Max Temp Record (deg) (Year) | Lowest Avg Max Temp Record (deg) (Year) |
| Athens | 8th Warmest | 81.0 (2016) | 68.8 (1976) |
| Atlanta | 27th Warmest | 79.8 (2016) | 67.1 (1976) |
| Columbus | 32nd Warmest | 82.8 (2016) | 71.7 (1976) |
| Macon | 31st Warmest | 83.2 (2016) | 73.7 (1976) |
| Average Minimum Temperature Ranking & Records | |||
| Climate Site | Avg Min Temp Rank | Highest Avg Min Temp Record (deg) (Year) | Lowest Avg Min Temp Record (deg) (Year) |
| Athens | 49th Warmest | 57.1 (1985) | 46.9 (1967) |
| Atlanta | 23rd Warmest | 59.0 (1931) | 46.3 (1976) |
| Columbus | 35th Warmest | 60.9 (1985) | 49.9 (1967) |
| Macon | 50th Coldest | 59.3 (1985) | 46.0 (1967) |
| Autumn 2022 Precipitation Climate Statistics | |||
| Climate Site | Total Precipitation (in) | Normal Precipitation (in) | DFN (Departure From Normal) |
| Athens | 9.91 | 11.31 | -1.40 |
| Atlanta | 6.93 | 11.98 | -5.05 |
| Columbus | 11.62 | 9.74 | +1.88 |
| Macon | 8.67 | 9.70 | -1.03 |
| Cartersville | 8.36 | 11.10 | -2.74 |
| Dekalb Peachtree Arpt | 8.43 | 12.23 | -3.80 |
| Fulton County Arpt | 6.86 | 11.76 | -4.90 |
| Gainesville | 7.70 | 13.23 | -5.53 |
| Peachtree City | 7.93 | 11.12 | -3.19 |
| Rome | 13.23 | 12.12 | +1.11 |
| Autumn 2022 Precipitation Ranking & Records | ||||
| Climate Site | Total Precipitation Ranking | Minimum Total Precip Record (in) (Year) | Maximum Total Precip Record (in) (Year) | |
| Athens | 43rd Driest | 2.64 (2001) | 24.17 (2009) | |
| Atlanta | 26th Driest | 2.94 (1931) | 23.40 (2009) | |
| Columbus | 29th Driest | 2.30 (1961) | 18.44 (2009) | |
| Macon | 42nd Driest | 1.62 (1991) | 20.94 (2009) |
| Autumn 2022 Precipitation Climate Statistics | ||||
| Climate Site | Maximum Daily Precip (in) | Max P Date | ||
| Athens | 1.98 | 11/10 | ||
| Atlanta | 1.85 | 11/29 | ||
| Columbus | 2.75* | 10/5 | ||
| Macon | 2.47 | 11/10 | ||
| Cartersville | 1.91 | 11/30 | ||
| Dekalb Peachtree Arpt | 2.65 | 11/29 | ||
| Fulton Co Arpt | 2.40 | 11/29 | ||
| Gainesville | 1.47 | 9/4 | ||
| Peachtree City | 1.88 | 11/29 | ||
| Rome | 3.25 | 11/29 |
For much more information on the climate in our area, visit the NWS Climate FAQ for the Atlanta area.
What does the National Weather Service do?
The National Weather Service (NWS) is a part of the National Oceanic and Atmospheric Administration (NOAA).
The NWS describes its role as follows:
“The National Weather Service (NWS) provides weather, water, and climate forecasts and warnings for the United States, its territories, adjacent waters and ocean areas, for the protection of life and property and the enhancement of the national economy.
“These services include Forecasts and Observations, Warnings, Impact-based Decision Support Services, and Education in an effort to build a Weather-Ready Nation. The ultimate goal is to have a society that is prepared for and responds to weather, water and climate events.”
