January weather forecast
Cainhoy, SC

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Weather in January

January is usually a month of moderate temperatures in Cainhoy, South Carolina. The afternoon highs hover around 57.2°F (14°C) and can drop to about 45.1°F (7.3°C) in late nights and early mornings. It can be a blustery month with wind speed averaging 9.3mph (15km/h) and gusts reaching up to 14.7mph (23.7km/h). It is a wet start to the year with scattered rainfall and some overcast days throughout the month. Compared to the ensuing month, January has a slightly less rainfall, more daylight hours, but lower daytime high temperatures.

Temperature

January, with average temperatures reaching a high of 57.2°F (14°C) and a low of 45.1°F (7.3°C), is the coldest month in Cainhoy, South Carolina.

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 in Cainhoy. Rain falls for 9.8 days and accumulates 1.38" (35mm) of precipitation.

Snowfall

In Cainhoy, snow does not fall in January, March through November.

Daylight

The average length of the day in January is 10h and 16min.
On the first day of January in Cainhoy, sunrise is at 7:21 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:50 pm EST.

Sunshine

The average sunshine in January is 5.9h.

UV index

January is the month with the lowest UV index in Cainhoy, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In January, the maximum UV index of 3 transforms into these recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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Frequently asked questions

What is the coldest month in Cainhoy?

In Cainhoy, the average lowest temperatures are observed in January, with a high of 57.2°F (14°C) and a low of 45.1°F (7.3°C).

What are the temperatures in Cainhoy in January?

In January, in Cainhoy, the average high-temperature is 57.2°F (14°C), and the average low-temperature is 45.1°F (7.3°C).

What is the least humid month in Cainhoy?

January and March, with an average relative humidity of 73%, are the least humid months.

What is the average humidity in January in Cainhoy?

In Cainhoy, the average relative humidity in January is 73%.

What is the driest month in Cainhoy?

January is the month with the least rainfall in Cainhoy. Rain falls for 9.8 days and accumulates 1.38" (35mm) of precipitation.

How many days does it rain in January in Cainhoy?

In Cainhoy, in January, during 9.8 rainfall days, 1.38" (35mm) of precipitation is typically accumulated.

When it does not snow in Cainhoy?

In Cainhoy, South Carolina, snow does not fall in January, March through November.

Does it snow in Cainhoy in January?

In January, in Cainhoy, South Carolina, it doesn't snow. December is the latest month when it typically snows.

What is the average length of the day in January in Cainhoy?

The average day length in January is 10h and 16min.

What time are sunrise and sunset in January in Cainhoy?

In January, on the first day of the month, sunrise is at 7:21 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:50 pm EST.

How long on average sun shines in January in Cainhoy?

In January, the average sunshine duration in Cainhoy is 5.9h.

What is the month with the lowest UV index in Cainhoy?

With an average maximum UV index of 3, January is the month with the lowest UV index in Cainhoy.

How high is the UV index in January in Cainhoy?

In Cainhoy, South Carolina, the average daily maximum UV index in January is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
60.6°F 15.9°C
57.2°F 14°C
60.4°F 15.8°C
Average low temperature
50°F 10°C
45.1°F 7.3°C
47.8°F 8.8°C
Average pressure
30.12" 765mmHg
30.14" 766mmHg
30.11" 765mmHg
Average wind speed
9.1mph 14.6km/h
9.3mph 15km/h
9.5mph 15.3km/h
Average max. wind speed
9.7mph 15.6km/h
9.9mph 15.9km/h
10.1mph 16.3km/h
Average wind speed gusts
14.4mph 23.2km/h
14.7mph 23.7km/h
15.2mph 24.5km/h
Average humidity
78%
73%
75%
Average rainfall
4.25" 108mm
1.38" 35mm
2.01" 51mm
Average rainfall days
10.5
9.8
10.9
Average snowfall
0.5" 13mm
0" 0mm
0.2" 5mm
Average snowfall days
0
0.3
0.1
Average daylight
10h 0min
10h 2min
11h 0min
Average sunshine
5h 4min
5h 5min
6h 4min
Average sunshine days
18.2
19.3
15.6
Average UV index
4
3
4
Average cloud cover
39%
35%
38%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Cainhoy, SC

Average temperature in January - Cainhoy, 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).

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Average pressure in January
Cainhoy, SC

Average pressure in January - Cainhoy, 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).

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Average wind speed in January
Cainhoy, SC

Average wind speed in January - Cainhoy, 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).

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Average humidity in January
Cainhoy, SC

Average humidity in January - Cainhoy, 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%).

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Average rainfall in January
Cainhoy, SC

Average rainfall in January - Cainhoy, 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").

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Average rainfall days in January
Cainhoy, SC

Average rainfall days in January - Cainhoy, 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).

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Average snowfall in January
Cainhoy, SC

Average snowfall in January - Cainhoy, SC
  • Average snowfall in January: 0"

The month with the highest snowfall is December (0.5").
The months with the least snowfall are January, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in January
Cainhoy, SC

Average snowfall days in January - Cainhoy, 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).

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Average daylight in January /
Average sunshine in January
Cainhoy, SC

Average daylight in January / Average sunshine in January - Cainhoy, 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).

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Average sunshine days in January
Cainhoy, SC

Average sunshine days in January - Cainhoy, 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).

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Average UV index in January
Cainhoy, SC

Average UV index in January - Cainhoy, 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).

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Average cloud cover in January
Cainhoy, SC

Average cloud cover in January - Cainhoy, 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).

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Average visibility in January
Cainhoy, SC

Average visibility in January - Cainhoy, 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).

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Cainhoy, South Carolina, USA

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