January weather forecast
Cary, NC

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Weather in January

Commencing the year, temperatures in Cary, North Carolina start to rise slightly from the freezing point. Nonetheless, January still records the coldest temperature than any other month with the highest and lowest temperature ranging between 48°F (8.9°C) to 32.5°F (0.3°C). The predominance of colder conditions adds to the relatively high relative humidity. The daylight hours are the shortest, inducing longer and chillier nights. The vestiges of snowfall from the previous month may still be present although snowfall significantly recedes in this month.

Temperature

January, with average temperatures reaching a high of 48°F (8.9°C) and a low of 32.5°F (0.3°C), is the coldest month in Cary.

Humidity

The average relative humidity in January in Cary is 73%.

Rainfall

In Cary, in January, during 11.1 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Cary, during the entire year, the rain falls for 161.9 days and collects up to 31.18" (792mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. January is the month with the most snowfall. Snow falls for 1.6 days and accumulates 1.61" (41mm) of snow.

Daylight

The average length of the day in January in Cary, North Carolina, is 10h and 4min.
On the first day of January, sunrise is at 7:25 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 5:40 pm EST.

Sunshine

In Cary, the average sunshine in January is 5.6h.

UV index

January is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 2 in January converts into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Boost your sun resistance with garments that are densely woven yet spacious. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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Frequently asked questions

What month is the coldest in Cary?

January, characterized by an average high temperature of 48°F (8.9°C) and a low temperature of 32.5°F (0.3°C), is generally the coldest month in Cary.

What are January temperatures in Cary?

The high-temperature, in January, in Cary, is 48°F (8.9°C), while the low-temperature averages to 32.5°F (0.3°C).

What is the average humidity in January in Cary?

In Cary, North Carolina, the average relative humidity in January is 73%.

How many days does it rain in January in Cary?

In Cary, North Carolina, during January, the rain falls for 11.1 days and regularly aggregates up to 2.28" (58mm) of precipitation.

When does it snow the most in Cary?

The month with the most snowfall in Cary is January, when snow falls for 1.6 days and typically aggregates up to 1.61" (41mm) of snow.

How much does it snow in Cary in January?

In January, in Cary, it is snowing for 1.6 days. Throughout January, 1.61" (41mm) of snow is accumulated.

How many hours of daylight does Cary have in January?

The average day length in January in Cary is 10h and 4min.

When are sunrise and sunset in January in Cary?

On the first day of January in Cary, sunrise is at 7:25 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 5:40 pm EST.

How long on average sun shines in January in Cary?

The average sunshine duration in January in Cary is 5.6h.

When is the lowest UV index in Cary?

January is the month with the lowest UV index, with an average maximum UV index of 2.

What is the UV index intensity in January in Cary?

In Cary, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
52.3°F 11.3°C
48°F 8.9°C
52.9°F 11.6°C
Average low temperature
38.1°F 3.4°C
32.5°F 0.3°C
35.8°F 2.1°C
Average pressure
30.14" 766mmHg
30.14" 766mmHg
30.11" 765mmHg
Average wind speed
6.4mph 10.3km/h
7mph 11.3km/h
7.4mph 11.9km/h
Average max. wind speed
7mph 11.3km/h
7.6mph 12.2km/h
8mph 12.9km/h
Average wind speed gusts
10.9mph 17.5km/h
11.5mph 18.5km/h
12.1mph 19.5km/h
Average humidity
76%
73%
74%
Average rainfall
2.56" 65mm
2.28" 58mm
2.28" 58mm
Average rainfall days
10.7
11.1
11.7
Average snowfall
0.67" 17mm
1.61" 41mm
1.5" 38mm
Average snowfall days
0.8
1.6
2.3
Average daylight
9h 5min
10h 1min
10h 5min
Average sunshine
5h 3min
5h 4min
5h 5min
Average sunshine days
18.8
17.8
14.1
Average UV index
3
2
3
Average cloud cover
41%
39%
42%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Cary, NC

Average temperature in January - Cary, NC
  • Average high temperature in January: 48°F

The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (48°F).

  • Average low temperature in January: 32.5°F

The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).

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Average pressure in January
Cary, NC

Average pressure in January - Cary, NC
  • 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 (29.96"Hg).

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Average wind speed in January
Cary, NC

Average wind speed in January - Cary, NC
  • Average wind speed in January: 7mph

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in January
Cary, NC

Average humidity in January - Cary, NC
  • Average humidity in January: 73%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (71%).

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Average rainfall in January
Cary, NC

Average rainfall in January - Cary, NC
  • Average rainfall in January: 2.28"

The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is October (2.17").

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Average rainfall days in January
Cary, NC

Average rainfall days in January - Cary, NC
  • Average rainfall days in January: 11.1 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is November (9.1 days).

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Average snowfall in January
Cary, NC

Average snowfall in January - Cary, NC
  • Average snowfall in January: 1.61"

The month with the highest snowfall is January (1.61").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in January
Cary, NC

Average snowfall days in January - Cary, NC
  • Average snowfall days in January: 1.6 days

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in January /
Average sunshine in January
Cary, NC

Average daylight in January / Average sunshine in January - Cary, NC
  • Average daylight in January: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in January: 5h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in January
Cary, NC

Average sunshine days in January - Cary, NC
  • Average sunshine days in January: 17.8 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index in January
Cary, NC

Average UV index in January - Cary, NC
  • Average UV index in January: 2

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).

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Average cloud cover in January
Cary, NC

Average cloud cover in January - Cary, NC
  • Average cloud cover in January: 39

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in January
Cary, NC

Average visibility in January - Cary, NC
  • 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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Cary, North Carolina, USA

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