Atlanta weather in January: Atlanta, Georgia: normal highs, lows, rain and records for January
Atlanta in January has a normal high of 54°F and a normal low of 36°F, a daily mean of 45°F, holding near 54°F all month. Measurable precipitation falls on 11 days in a normal January, 4.59 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 12°C and low of 2°C, 117 mm of precipitation and 3 cm of snow in January.
- 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 January?
The normal high is 54°F and the normal low 36°F, for a daily mean of 44.8°F. January is 2.5°F cooler than December and 3.7°F cooler than February. January is the 12th warmest month of the year in Atlanta and the 3rd wettest, and the snowiest. Across the month the normal high rises 1°F, from 54°F on January 1 to 55°F on January 31. From one year to the next January's mean temperature typically moves about 3.7°F either way (NOAA's standard deviation), so roughly two Januarys in three average between 41°F and 49°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 |
|---|---|---|---|---|
| January 1 | 54°F | 36°F | 37% | 24% |
| January 8 | 54°F | 36°F | 37% | 24% |
| January 15 | 54°F | 35°F | 36% | 24% |
| January 22 | 54°F | 35°F | 36% | 23% |
| January 31 | 55°F | 36°F | 35% | 23% |
Every day of January: normal high, low and chance of precipitation (warmest afternoon January 31, coldest night January 17)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| January 1 | 54°F | 36°F | 37% | 24% | 10 h |
| January 2 | 54°F | 36°F | 37% | 24% | 10 h |
| January 3 | 54°F | 36°F | 37% | 24% | 10 h |
| January 4 | 54°F | 36°F | 37% | 24% | 10 h |
| January 5 | 54°F | 36°F | 37% | 24% | 10 h |
| January 6 | 54°F | 36°F | 37% | 24% | 10 h |
| January 7 | 54°F | 36°F | 37% | 24% | 10 h |
| January 8 | 54°F | 36°F | 37% | 24% | 10 h |
| January 9 | 54°F | 36°F | 37% | 24% | 10 h |
| January 10 | 54°F | 36°F | 37% | 24% | 10 h |
| January 11 | 54°F | 35°F | 37% | 24% | 10 h |
| January 12 | 54°F | 35°F | 36% | 24% | 10 h 10 min |
| January 13 | 54°F | 35°F | 36% | 24% | 10 h 10 min |
| January 14 | 54°F | 35°F | 36% | 24% | 10 h 10 min |
| January 15 | 54°F | 35°F | 36% | 24% | 10 h 10 min |
| January 16 | 54°F | 35°F | 36% | 23% | 10 h 10 min |
| January 17 | 54°F | 35°F | 36% | 23% | 10 h 10 min |
| January 18 | 54°F | 35°F | 36% | 23% | 10 h 10 min |
| January 19 | 54°F | 35°F | 36% | 23% | 10 h 10 min |
| January 20 | 54°F | 35°F | 36% | 23% | 10 h 10 min |
| January 21 | 54°F | 35°F | 36% | 23% | 10 h 20 min |
| January 22 | 54°F | 35°F | 36% | 23% | 10 h 20 min |
| January 23 | 54°F | 35°F | 36% | 23% | 10 h 20 min |
| January 24 | 54°F | 36°F | 36% | 23% | 10 h 20 min |
| January 25 | 54°F | 36°F | 35% | 23% | 10 h 20 min |
| January 26 | 55°F | 36°F | 35% | 23% | 10 h 20 min |
| January 27 | 55°F | 36°F | 35% | 23% | 10 h 20 min |
| January 28 | 55°F | 36°F | 35% | 23% | 10 h 30 min |
| January 29 | 55°F | 36°F | 35% | 23% | 10 h 30 min |
| January 30 | 55°F | 36°F | 35% | 23% | 10 h 30 min |
| January 31 | 55°F | 36°F | 35% | 23% | 10 h 30 min |
- Normal high
- 54°FJanuary average
- Normal low
- 36°FJanuary average
- Precipitation
- 4.59 inmonth total
- Days with precipitation
- 110.01 inch or more
- Snowfall
- 1.0 inmonth total
- Nights at 32°F or colder
- 13
- Daylight
- 10 h to 10 h 30 minJanuary 1 to January 31
- Days at 70°F or more
- 2
- Sunshine
- 73%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 January?
On a given January day the chance of 0.01 inch or more is 36% on average, highest around January 1 (37%). In all, 4.59 in falls on 11 days of a normal January, 1 of them with an inch or more.
In a normal January in Atlanta, 13 nights fall to freezing, 1 days stay below freezing all day and snowfall averages 1.0 inches.
Snow falls on 1 day in a normal January, and an inch or more covers the ground on 1 day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00013874.
How humid and windy is Atlanta in January?
At 3 p.m. the normal temperature is 53°F with 45% relative humidity and a dew point of 32°F; at 6 a.m. it is 39°F with 74% humidity. The wind averages 9.2 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. | 39°F | 31°F | 74% | 8.3 mph | 44% |
| 9 a.m. | 41°F | 32°F | 71% | 9.5 mph | 29% |
| noon | 48°F | 32°F | 54% | 10.5 mph | 33% |
| 3 p.m. | 53°F | 32°F | 45% | 10.7 mph | 34% |
| 6 p.m. | 50°F | 32°F | 48% | 9.7 mph | 38% |
| 9 p.m. | 46°F | 32°F | 58% | 8.7 mph | 43% |
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 January in Atlanta?
The warmest January temperature on Atlanta's official record (since 1878) is 79°F, on January 11, 1949; the coldest is −8°F, on January 21, 1985. The wettest January brought 15.82 in (1883); the snowiest, 8.3 inches (1940).
The January mean against the 1991-2020 normal of 44.8°F: 2021 46.2°F (+1.4), 2022 44.5°F (−0.3), 2023 51.7°F (+6.9), 2024 44.3°F (−0.5), 2025 40.7°F (−4.1), 2026 45.2°F (+0.4). 3 of 6 ran warmer than normal.
| January | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 46.2°F | +1.4°F | 3.62 in |
| 2022 | 44.5°F | −0.3°F | 3.37 in |
| 2023 | 51.7°F | +6.9°F | 7.23 in |
| 2024 | 44.3°F | −0.5°F | 6.43 in |
| 2025 | 40.7°F | −4.1°F | 3.20 in |
| 2026 | 45.2°F | +0.4°F | 3.13 in |
Source: records: ACIS, NWS threaded record ATLthr; recent months: ACIS, station USW00013874. Records and recent months use complete months only.
How does January in Atlanta compare across Georgia?
Across the 101 places PlainClimate covers in Georgia, January normal highs run from 45°F in Mountain City to 67°F in Folkston; Atlanta's is 54°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.