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
Jackson's January weather reaches an average high of 54.1°F (12.3°C) and an average low of 38.7°F (3.7°C), making it the coldest month.Humidity
The months with the lowest humidity are January, July and November, with an average relative humidity of 70%.Rainfall
In January, the rain falls for 10 days. Throughout January, 1.85" (47mm) of precipitation is accumulated. In Jackson, during the entire year, the rain falls for 153.6 days and collects up to 29.33" (745mm) of precipitation.Snowfall
January, February and December are months with snowfall. The month with the most snowfall is January, when snow falls for 0.4 days and typically aggregates up to 0.12" (3mm) of snow.Daylight
In January, the average length of the day is 10h and 14min.On the first day of the month, sunrise is at 7:30 am and sunset at 5:30 pm. On the last day of January, sunrise is at 7:23 am and sunset at 5:57 pm EST.
Sunshine
In Jackson, South Carolina, the average sunshine in January is 5.8h.UV index
January and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 3 in January translates into this advice:
Take precautions - Protection against sun damage is advised. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
What are January temperatures?
What are the least humid months in Jackson?
What is the average humidity in January?
How much does it rain in January?
What is the snowiest month?
How much does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
What are the months with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Jackson, SC
- Average high temperature in January: 54.1°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (54.1°F).
- Average low temperature in January: 38.7°F
The month with the highest average low temperature is July (73.8°F).
The coldest month (with the lowest average low temperature) is January (38.7°F).
Average pressure in January
Jackson, 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 (29.98"Hg).
Average wind speed in January
Jackson, SC
- Average wind speed in January: 8mph
The windiest months (with the highest average wind speed) are February and April (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in January
Jackson, SC
- Average humidity in January: 70%
The month with the highest relative humidity is December (75%).
The months with the lowest relative humidity are January, July and November (70%).
Average rainfall in January
Jackson, SC
- Average rainfall in January: 1.85"
The wettest month (with the highest rainfall) is August (3.23").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in January
Jackson, SC
- Average rainfall days in January: 10 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is November (7.6 days).
Average snowfall in January
Jackson, SC
- Average snowfall in January: 0.12"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in January
Jackson, SC
- Average snowfall days in January: 0.4 days
The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in January /
Average sunshine in January
Jackson, SC
- Average daylight in January: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January: 5h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in January
Jackson, SC
- Average sunshine days in January: 19.8 days
The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is July (8.2 days).
Average UV index in January
Jackson, SC
- Average UV index in January: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in January
Jackson, SC
- Average cloud cover in January: 36
The month with the most cloud cover is December (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in January
Jackson, 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).
Jackson, South Carolina, USA
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