Atlanta weather in December: Atlanta, Georgia: normal highs, lows, rain and records for December
Atlanta in December has a normal high of 56°F and a normal low of 38°F, a daily mean of 47°F, falling from 59°F on the 1st to 54°F by the 31st. Measurable precipitation falls on 11 days in a normal December, 4.57 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 13°C and low of 4°C, 116 mm of precipitation and 1 cm of snow in December.
- NOAA stationAtlanta Hartsfield International Airport
- Station IDUSW00013874
- Location33.63°N 84.44°W
- Elevation1,010 ft (308 m)
- From the center9 miles
- Population520,070
- Jan 54° 36°
- Feb 58° 39°
- Mar 66° 45°
- Apr 74° 53°
- May 81° 61°
- Jun 87° 69°
- Jul 90° 72°
- Aug 89° 71°
- Sep 84° 66°
- Oct 74° 55°
- Nov 64° 44°
- Dec 56° 38°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Atlanta in December?
The normal high is 56°F and the normal low 38°F, for a daily mean of 47.3°F. December is 6.9°F cooler than November and 2.5°F warmer than January. December is the 11th warmest month of the year in Atlanta and the 4th wettest. Across the month the normal high falls 5°F, from 59°F on December 1 to 54°F on December 31. From one year to the next December's mean temperature typically moves about 4.1°F either way (NOAA's standard deviation), so roughly two Decembers in three average between 43°F and 51°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 37%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| December 1 | 59°F | 41°F | 30% | 21% |
| December 8 | 58°F | 40°F | 32% | 22% |
| December 15 | 56°F | 39°F | 34% | 23% |
| December 22 | 55°F | 38°F | 36% | 24% |
| December 31 | 54°F | 36°F | 37% | 24% |
Every day of December: normal high, low and chance of precipitation (warmest afternoon December 1, coldest night December 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| December 1 | 59°F | 41°F | 30% | 21% | 10 h 10 min |
| December 2 | 59°F | 41°F | 30% | 21% | 10 h 10 min |
| December 3 | 59°F | 40°F | 31% | 21% | 10 h |
| December 4 | 59°F | 40°F | 31% | 21% | 10 h |
| December 5 | 58°F | 40°F | 31% | 21% | 10 h |
| December 6 | 58°F | 40°F | 32% | 22% | 10 h |
| December 7 | 58°F | 40°F | 32% | 22% | 10 h |
| December 8 | 58°F | 40°F | 32% | 22% | 10 h |
| December 9 | 57°F | 39°F | 33% | 22% | 10 h |
| December 10 | 57°F | 39°F | 33% | 22% | 10 h |
| December 11 | 57°F | 39°F | 33% | 22% | 10 h |
| December 12 | 57°F | 39°F | 33% | 23% | 10 h |
| December 13 | 57°F | 39°F | 34% | 23% | 10 h |
| December 14 | 56°F | 39°F | 34% | 23% | 10 h |
| December 15 | 56°F | 39°F | 34% | 23% | 10 h |
| December 16 | 56°F | 38°F | 35% | 23% | 10 h |
| December 17 | 56°F | 38°F | 35% | 23% | 10 h |
| December 18 | 56°F | 38°F | 35% | 23% | 10 h |
| December 19 | 55°F | 38°F | 35% | 23% | 10 h |
| December 20 | 55°F | 38°F | 36% | 24% | 10 h |
| December 21 | 55°F | 38°F | 36% | 24% | 10 h |
| December 22 | 55°F | 38°F | 36% | 24% | 10 h |
| December 23 | 55°F | 37°F | 36% | 24% | 10 h |
| December 24 | 55°F | 37°F | 36% | 24% | 10 h |
| December 25 | 55°F | 37°F | 36% | 24% | 10 h |
| December 26 | 54°F | 37°F | 36% | 24% | 10 h |
| December 27 | 54°F | 37°F | 37% | 24% | 10 h |
| December 28 | 54°F | 37°F | 37% | 24% | 10 h |
| December 29 | 54°F | 37°F | 37% | 24% | 10 h |
| December 30 | 54°F | 37°F | 37% | 24% | 10 h |
| December 31 | 54°F | 36°F | 37% | 24% | 10 h |
- Normal high
- 56°FDecember average
- Normal low
- 38°FDecember average
- Precipitation
- 4.57 inmonth total
- Days with precipitation
- 110.01 inch or more
- Snowfall
- 0.4 inmonth total
- Nights at 32°F or colder
- 9
- Daylight
- 10 h 10 min to 10 hDecember 1 to December 31
- Days at 70°F or more
- 3
- Sunshine
- 70%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00013874; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Atlanta in December?
On a given December day the chance of 0.01 inch or more is 34% on average, highest around December 29 (37%). In all, 4.57 in falls on 11 days of a normal December, 1 of them with an inch or more.
In a normal December in Atlanta, 9 nights fall to freezing and snowfall averages 0.4 inches.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00013874.
How humid and windy is Atlanta in December?
At 3 p.m. the normal temperature is 52°F with 52% relative humidity and a dew point of 35°F; at 6 a.m. it is 40°F with 78% humidity. The wind averages 8.9 mph, most often from the west-northwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 40°F | 34°F | 78% | 8.3 mph | – |
| 9 a.m. | 41°F | 34°F | 76% | 9.0 mph | – |
| noon | 48°F | 35°F | 61% | 10.0 mph | – |
| 3 p.m. | 52°F | 35°F | 52% | 10.0 mph | 28% |
| 6 p.m. | 49°F | 34°F | 58% | 8.6 mph | – |
| 9 p.m. | 45°F | 34°F | 66% | 8.6 mph | 41% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00013874. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for December in Atlanta?
The warmest December temperature on Atlanta's official record (since 1878) is 79°F, on December 1, 1991; the coldest is 0°F, on December 25, 1983. The wettest December brought 12.94 in (1919); the snowiest, 3.0 inches (2000).
The December mean against the 1991-2020 normal of 47.3°F: 2021 56.0°F (+8.8), 2022 47.5°F (+0.3), 2023 49.9°F (+2.6), 2024 48.7°F (+1.4), 2025 49.0°F (+1.7). 5 of 5 ran warmer than normal.
| December | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 56.0°F | +8.8°F | 6.08 in |
| 2022 | 47.5°F | +0.3°F | 3.44 in |
| 2023 | 49.9°F | +2.6°F | 3.68 in |
| 2024 | 48.7°F | +1.4°F | 3.98 in |
| 2025 | 49.0°F | +1.7°F | 1.82 in |
Source: records: ACIS, NWS threaded record ATLthr; recent months: ACIS, station USW00013874. Records and recent months use complete months only.
How does December in Atlanta compare across Georgia?
Across the 101 places PlainClimate covers in Georgia, December normal highs run from 49°F in Mountain City to 68°F in Folkston; Atlanta's is 56°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.