Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
Temperature records mark January as the coldest month, with highs averaging 49.6°F (9.8°C) and lows at 34.3°F (1.3°C).Humidity
In January, the average relative humidity is 73%.Rainfall
In Dunwoody, during January, the rain falls for 12.3 days and regularly aggregates up to 3.15" (80mm) of precipitation. In Dunwoody, Georgia, during the entire year, the rain falls for 180.4 days and collects up to 42.91" (1090mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. The month with the most snowfall in Dunwoody is January, when snow falls for 1.4 days and typically aggregates up to 1.14" (29mm) of snow.Daylight
In January, the average length of the day 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 Dunwoody, the average daily maximum UV index in January is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 3 during January translates into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
What are January temperatures?
What is the average humidity in January?
How much does it rain in January?
When does it snow the most?
How many days does it snow in January?
How many hours of daylight does Dunwoody have in January?
When is the sunrise / sunset in January?
How many hours of sunshine does Dunwoody have in January?
How high is the UV index in January?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Dunwoody, Georgia, USA
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