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 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 57.2°F (14°C) and lows at 45.1°F (7.3°C).Humidity
The months with the lowest humidity are January and March, with an average relative humidity of 73%.Rainfall
January is the month with the least rainfall. Rain falls for 9.8 days and accumulates 1.38" (35mm) of precipitation.Snowfall
January and February are months with snowfall. The month with the most snowfall days is January, when snow falls for 0.3 days.Daylight
In January, the average length of the day is 10h and 17min.On the first day of January, sunrise is at 7:21 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:50 pm EST.
Sunshine
In January, the average sunshine is 5.9h.UV index
January is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The average daily UV index of 3 in January transforms into the following instructions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Stay sun-safe with clothing that is both closely woven and worn loosely. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
What is the average January temperature?
What is the least humid month?
What is the average humidity in January?
What is the driest month?
How much does it rain in January?
What is the snowiest month in Cassina Heights?
When does it start snowing?
What is the average length of the day in January?
When are sunrise and sunset in January?
How many hours of sunshine does Cassina Heights have in January?
When is the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Cassina Heights, SC
- Average high temperature in January: 57.2°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (57.2°F).
- Average low temperature in January: 45.1°F
The month with the highest average low temperature is July (77.9°F).
The coldest month (with the lowest average low temperature) is January (45.1°F).
Average pressure in January
Cassina Heights, SC
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in January
Cassina Heights, SC
- Average wind speed in January: 9.3mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).
Average humidity in January
Cassina Heights, SC
- Average humidity in January: 73%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are January and March (73%).
Average rainfall in January
Cassina Heights, SC
- Average rainfall in January: 1.38"
The wettest month (with the highest rainfall) is August (8.03").
The driest month (with the least rainfall) is January (1.38").
Average rainfall days in January
Cassina Heights, SC
- Average rainfall days in January: 9.8 days
The month with the highest number of rainy days is August (25.8 days).
The month with the least rainy days is November (8.6 days).
Average snowfall days in January
Cassina Heights, SC
- Average snowfall days in January: 0.3 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in January /
Average sunshine in January
Cassina Heights, SC
- Average daylight in January: 10h and 2min
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 months with the most sunshine are June and July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in January
Cassina Heights, SC
- Average sunshine days in January: 19.3 days
The months with the most sunshine days are January and November (19.3 days).
The month with the least sunshine days is August (3 days).
Average UV index in January
Cassina Heights, SC
- Average UV index in January: 3
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in January
Cassina Heights, SC
- Average cloud cover in January: 35
The month with the most cloud cover is December (Cloud cover 39).
The months with the least cloud cover are June and July (Cloud cover 26).
Average visibility in January
Cassina Heights, 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).
Cassina Heights, South Carolina, USA
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