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
With average high temperatures of 51.6°F (10.9°C) and lows of 35.2°F (1.8°C), January is the coldest month.Humidity
In Iris, the average relative humidity in January is 73%.Rainfall
In Iris, in January, it is raining for 12.5 days, with typically 2.87" (73mm) of accumulated precipitation. In Iris, during the entire year, the rain falls for 160.1 days and collects up to 33.94" (862mm) of precipitation.Snowfall
Months with snowfall are January through March and December. In Iris, during January, snow falls for 0.8 days and regularly aggregates up to 0.31" (8mm) of snow. In Iris, during the entire year, snow falls for 2 days and aggregates up to 1.81" (46mm) of snow.Daylight
In January, the average length of the day is 10h and 10min.On the first day of the month, sunrise is at 7:35 am and sunset at 5:30 pm. On the last day of January, sunrise is at 7:27 am and sunset at 5:58 pm EST.
Sunshine
The average sunshine in January is 5.6h.UV index
With an average maximum UV index of 2, January is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 2 during January, leads to the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
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 is the average humidity in January?
How much does it rain in January?
How much does it snow in January?
What is the average length of the day in January?
When are sunrise and sunset in January?
How many hours of sunshine does Iris have in January?
What is the month with the lowest UV index in Iris?
How high is the UV index in January?
Average temperature in January
Iris, SC
- Average high temperature in January: 51.6°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (51.6°F).
- Average low temperature in January: 35.2°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in January
Iris, SC
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in January
Iris, SC
- Average wind speed in January: 7.2mph
The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in January
Iris, SC
- Average humidity in January: 73%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).
Average rainfall in January
Iris, SC
- Average rainfall in January: 2.87"
The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in January
Iris, SC
- Average rainfall days in January: 12.5 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is October (9.1 days).
Average snowfall in January
Iris, SC
- Average snowfall in January: 0.31"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in January
Iris, SC
- Average snowfall days in January: 0.8 days
The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in January /
Average sunshine in January
Iris, 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 month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in January
Iris, SC
- Average sunshine days in January: 17.6 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in January
Iris, SC
- Average UV index in January: 2
The months with the highest UV index are June and August (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in January
Iris, SC
- Average cloud cover in January: 38
The months with the most cloud cover are February and December (Cloud cover 42).
The months with the least cloud cover are June and October (Cloud cover 29).
Average visibility in January
Iris, SC
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Iris, South Carolina, USA
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