January weather forecast
Apex, NC

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Weather in January

As the year begins, Apex, North Carolina exhibits a typically winter climate; cold, damp, and somewhat short days. Temperatures tend to fluctuate between 32.5°F (0.3°C) and 48°F (8.9°C) with daytime often cloudy. However, the adjust in temperature from the previous month is hardly noticeable. The presence of both snowfall and rainfall is not unusual in January. Shifting into February, the weather conditions largely remain the same with an unchanging average relative humidity at 73%.

Temperature

In Apex, January is the coldest month, with temperatures averaging a high of 48°F (8.9°C) and a low of 32.5°F (0.3°C).

Humidity

In January, the average relative humidity is 73%.

Rainfall

In Apex, during January, the rain falls for 11.1 days and regularly aggregates up to 2.28" (58mm) of precipitation. In Apex, 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 in Apex. Snow falls for 1.6 days and accumulates 1.61" (41mm) of snow.

Daylight

In January, the average length of the day 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 5:41 pm EST.

Sunshine

In January, the average sunshine in Apex, North Carolina, is 5.6h.

UV index

The month with the lowest UV index in Apex is January, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: A typical high UV index of 2 in January suggests the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
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Frequently asked questions

What month is the coldest in Apex?

In Apex, January is the coldest month, with temperatures averaging a high of 48°F (8.9°C) and a low of 32.5°F (0.3°C).

What is the average January temperature in Apex?

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

What is the average humidity in January in Apex?

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

How many days does it rain in January in Apex?

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

What is the snowiest month in Apex?

January is the month with the most snowfall. Snow falls for 1.6 days and accumulates 1.61" (41mm) of snow.

How much does it snow in Apex in January?

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

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

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

When is the sunrise / sunset in January in Apex?

In January, on the first day of the month, 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 5:41 pm EST.

How many hours of sunshine does Apex have in January?

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

When is the lowest UV index in Apex?

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

What is the UV index intensity in January in Apex?

In January, the average daily maximum UV index in Apex is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Apex, NC

Average temperature in January - Apex, 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
Apex, NC

Average pressure in January - Apex, 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
Apex, NC

Average wind speed in January - Apex, 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
Apex, NC

Average humidity in January - Apex, 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
Apex, NC

Average rainfall in January - Apex, 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
Apex, NC

Average rainfall days in January - Apex, 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
Apex, NC

Average snowfall in January - Apex, 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
Apex, NC

Average snowfall days in January - Apex, 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
Apex, NC

Average daylight in January / Average sunshine in January - Apex, 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
Apex, NC

Average sunshine days in January - Apex, 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
Apex, NC

Average UV index in January - Apex, 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
Apex, NC

Average cloud cover in January - Apex, 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
Apex, NC

Average visibility in January - Apex, 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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Apex, North Carolina, USA

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