January weather forecast
Dunwoody, GA

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Weather in January

In the first month of the year, Dunwoody, Georgia experiences temperatures that are relatively chilly compared to the rest of the year. January stands as the coldest month, with the average low temperature dropping to 34.3°F (1.3°C). Clear skies are quite rare, as cloud coverage is quite high at 43%. After the relaxing festive period, the winds foster a brisk and invigorating ambience. The freshness of the new year is also reflected in the overall weather, with steady rainfall, a fair share of overcast days, and short-lived days.

Temperature

In Dunwoody, the lowest average temperatures are observed in January, with a high of 49.6°F (9.8°C) and a low of 34.3°F (1.3°C).

Humidity

In Dunwoody, the average relative humidity in January is 73%.

Rainfall

In January, in Dunwoody, the rain falls for 12.3 days. Throughout January, 3.15" (80mm) of precipitation is accumulated. Throughout the year, in Dunwoody, there are 180.4 rainfall days, and 42.91" (1090mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall in Dunwoody. The month with the most snowfall is January, when snow falls for 1.4 days and typically aggregates up to 1.14" (29mm) of snow.

Daylight

The average length of the day in January is 10h and 12min.
On the first day of January, sunrise is at 7:42 am and sunset at 5:39 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 6:06 pm EST.

Sunshine

In Dunwoody, the average sunshine in January is 5.6h.

UV index

In January, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 3 in January translates into these instructions:
Make use of precautions - Suggestions to resist sunburn are communicated. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the coldest month in Dunwoody?

January is the month when Dunwoody experiences its coldest temperatures, averaging a high of 49.6°F (9.8°C) and a low of 34.3°F (1.3°C).

What is the temperature in January in Dunwoody?

In January, in Dunwoody, the average high-temperature is 49.6°F (9.8°C), and the average low-temperature is 34.3°F (1.3°C).

What is the average humidity in January in Dunwoody?

The average relative humidity in January in Dunwoody is 73%.

How many days does it rain in January in Dunwoody?

In Dunwoody, Georgia, in January, during 12.3 rainfall days, 3.15" (80mm) of precipitation is typically accumulated.

What is the snowiest month in Dunwoody?

The month with the most snowfall in Dunwoody, Georgia, is January, when snow falls for 1.4 days and typically aggregates up to 1.14" (29mm) of snow.

How much does it snow in Dunwoody in January?

In Dunwoody, in January, snow falls for 1.4 days, with typically accumulated 1.14" (29mm) of snow.

How many hours of daylight does Dunwoody have in January?

In Dunwoody, the average day length in January is 10h and 12min.

When is the sunrise / sunset in January in Dunwoody?

On the first day of January in Dunwoody, Georgia, sunrise is at 7:42 am and sunset at 5:39 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 6:06 pm EST.

How many hours of sunshine does Dunwoody have in January?

The average sunshine duration in January in Dunwoody is 5.6h.

What is the UV index intensity in January in Dunwoody?

In January, the average daily maximum UV index in Dunwoody is 3. A UV Index reading of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
53.4°F 11.9°C
49.6°F 9.8°C
54.9°F 12.7°C
Average low temperature
39.2°F 4°C
34.3°F 1.3°C
38.1°F 3.4°C
Average pressure
30.15" 766mmHg
30.16" 766mmHg
30.12" 765mmHg
Average wind speed
7.5mph 12.1km/h
8mph 12.9km/h
7.9mph 12.7km/h
Average max. wind speed
8mph 12.9km/h
8.6mph 13.8km/h
8.3mph 13.4km/h
Average wind speed gusts
11.3mph 18.2km/h
12.1mph 19.5km/h
11.8mph 19km/h
Average humidity
77%
73%
75%
Average rainfall
3.86" 98mm
3.15" 80mm
3.7" 94mm
Average rainfall days
14.4
12.3
14.2
Average snowfall
0.71" 18mm
1.14" 29mm
0.94" 24mm
Average snowfall days
0.6
1.4
1.3
Average daylight
9h 5min
10h 1min
11h 0min
Average sunshine
5h 0min
5h 4min
6h 2min
Average sunshine days
15.4
16.2
12.2
Average UV index
2
3
3
Average cloud cover
47%
43%
46%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Dunwoody, GA

Average temperature in January - Dunwoody, GA
  • Average high temperature in January: 49.6°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (49.6°F).

  • Average low temperature in January: 34.3°F

The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).

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Average pressure in January
Dunwoody, GA

Average pressure in January - Dunwoody, GA
  • Average pressure in January: 30.16"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

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Average wind speed in January
Dunwoody, GA

Average wind speed in January - Dunwoody, GA
  • Average wind speed in January: 8mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

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Average humidity in January
Dunwoody, GA

Average humidity in January - Dunwoody, GA
  • Average humidity in January: 73%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are July and August (68%).

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Average rainfall in January
Dunwoody, GA

Average rainfall in January - Dunwoody, GA
  • Average rainfall in January: 3.15"

The wettest month (with the highest rainfall) is August (5.16").
The driest month (with the least rainfall) is October (2.17").

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Average rainfall days in January
Dunwoody, GA

Average rainfall days in January - Dunwoody, GA
  • Average rainfall days in January: 12.3 days

The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is October (9.5 days).

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Average snowfall in January
Dunwoody, GA

Average snowfall in January - Dunwoody, GA
  • Average snowfall in January: 1.14"

The month with the highest snowfall is January (1.14").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in January
Dunwoody, GA

Average snowfall days in January - Dunwoody, GA
  • Average snowfall days in January: 1.4 days

The month with the highest number of snowfall days is January (1.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in January /
Average sunshine in January
Dunwoody, GA

Average daylight in January / Average sunshine in January - Dunwoody, GA
  • Average daylight in January: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in January: 5h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in January
Dunwoody, GA

Average sunshine days in January - Dunwoody, GA
  • Average sunshine days in January: 16.2 days

The month with the most sunshine days is October (20.2 days).
The month with the least sunshine days is July (7.7 days).

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Average UV index in January
Dunwoody, GA

Average UV index in January - Dunwoody, GA
  • Average UV index in January: 3

The month with the highest UV index is August (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in January
Dunwoody, GA

Average cloud cover in January - Dunwoody, GA
  • Average cloud cover in January: 43

The month with the most cloud cover is December (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in January
Dunwoody, GA

Average visibility in January - Dunwoody, GA
  • Average visibility in January: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Dunwoody, Georgia, USA

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