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
January, marked by an average high-temperature of 52.2°F (11.2°C) and a low-temperature of 37.4°F (3°C), is the coldest month.Humidity
January, March and November, with an average relative humidity of 70%, are the least humid months in Dekalb.Rainfall
In January, the rain falls for 7.8 days. Throughout January, 0.71" (18mm) of precipitation is accumulated. Throughout the year, in Dekalb, there are 116.1 rainfall days, and 11.42" (290mm) of precipitation is accumulated.Snowfall
Months with snowfall are January and February. January is the first month it typically snows. Throughout January, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow. In Dekalb, during the entire year, snow falls for 0.9 days and aggregates up to 0.12" (3mm) of snow.Daylight
In Dekalb, the average length of the day in January is 10h and 10min.On the first day of January, sunrise is at 7:28 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:50 pm EST.
Sunshine
The months with the least sunshine in Dekalb are January and December, with an average of 5.6h of sunshine.UV index
The month with the lowest UV index is January, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in Dekalb?
What is the average January temperature in Dekalb?
What are the least humid months in Dekalb?
What is the average humidity in January in Dekalb?
How many days does it rain in January in Dekalb?
When does it start snowing in Dekalb?
How many hours of daylight does Dekalb have in January?
What time are sunrise and sunset in January in Dekalb?
What is the month with the least sunshine in Dekalb?
How long on average sun shines in January in Dekalb?
When is the lowest UV index in Dekalb?
What is the UV index reading in January in Dekalb?
Average temperature in January
Dekalb, SC
- Average high temperature in January: 52.2°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 (52.2°F).
- Average low temperature in January: 37.4°F
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (37.4°F).
Average pressure in January
Dekalb, SC
- Average pressure in January: 30.14"Hg
The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in January
Dekalb, SC
- Average wind speed in January: 7.8mph
The windiest months (with the highest average wind speed) are February and April (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in January
Dekalb, SC
- Average humidity in January: 70%
The month with the highest relative humidity is May (75%).
The months with the lowest relative humidity are January, March and November (70%).
Average rainfall in January
Dekalb, SC
- Average rainfall in January: 0.71"
The wettest month (with the highest rainfall) is August (1.42").
The driest month (with the least rainfall) is September (0.59").
Average rainfall days in January
Dekalb, SC
- Average rainfall days in January: 7.8 days
The month with the highest number of rainy days is July (13.8 days).
The month with the least rainy days is November (5.8 days).
Average snowfall in January
Dekalb, SC
- Average snowfall in January: 0.04"
The month with the highest snowfall is February (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in January
Dekalb, SC
- Average snowfall days in January: 0.3 days
The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and December (0 days).
Average daylight in January /
Average sunshine in January
Dekalb, SC
- 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 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in January
Dekalb, SC
- Average sunshine days in January: 20.9 days
The month with the most sunshine days is October (23.9 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in January
Dekalb, SC
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in January
Dekalb, SC
- Average cloud cover in January: 37
The month with the most cloud cover is February (Cloud cover 41).
The months with the least cloud cover are June and October (Cloud cover 28).
Average visibility in January
Dekalb, SC
- 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).
Dekalb, South Carolina, USA
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