December weather forecast and climate
Knightdale, NC

Weather in December

December, the first month of the winter, in Knightdale, is also a fresh month, with average temperature fluctuating between 52.7°F (11.5°C) and 38.3°F (3.5°C).

Temperature

In Knightdale, North Carolina, the average high-temperature marginally drops, from a moderate 59.5°F (15.3°C) in November, to a cool 52.7°F (11.5°C). The average low-temperature, in December, is 38.3°F (3.5°C).

Humidity

Months with the highest humidity in Knightdale are May, September and December, with an average relative humidity of 77%.

Rainfall

In Knightdale, North Carolina, in December, it is raining for 11.4 days, with typically 2.6" (66mm) of accumulated precipitation. In Knightdale, North Carolina, during the entire year, the rain falls for 168.7 days and collects up to 33.19" (843mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In Knightdale, during December, snow falls for 0.8 days and regularly aggregates up to 0.47" (12mm) of snow. Throughout the year, there are 5.8 snowfall days, and 3.82" (97mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9.8h of daylight.

Sunshine

The month with the least sunshine is December, with an average of 5.5h of sunshine.

UV index

In December, the average daily maximum UV index in Knightdale is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 3 transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the most humid month in Knightdale?

Months with the highest humidity in Knightdale are May, September and December, with an average relative humidity of 77%.

What is the average humidity in December in Knightdale?

In Knightdale, the average relative humidity in December is 77%.

How much does it rain in Knightdale in December?

In Knightdale, in December, during 11.4 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

How much does it snow in Knightdale in December?

In Knightdale, North Carolina, in December, during 0.8 snowfall days, 0.47" (12mm) of snow is typically accumulated.

What is the month with the shortest days in Knightdale?

December has the shortest days of the year in Knightdale, North Carolina, with an average of 9.8h of daylight.

What is the average length of the day in December in Knightdale?

In Knightdale, the average length of the day in December is 9.8h.

What is the month with the least sunshine in Knightdale?

December has the least sunshine of the year, with an average of 5.5h of sunshine.

How long on average sun shines in December in Knightdale?

In December, the average sunshine is 5.5h.

How high is the UV index in December in Knightdale?

In December, the average daily maximum UV index in Knightdale, North Carolina, is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in December
Knightdale, NC

Average temperature in December - Knightdale, NC
  • Average high temperature in December: 52.7°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (48°F).

  • Average low temperature in December: 38.3°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 (32.7°F).

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Average pressure in December
Knightdale, NC

Average pressure in December - Knightdale, NC
  • Average pressure in December: 30.14"

The month with the highest atmospheric pressure is November (30.15").
The month with the lowest atmospheric pressure is June (29.96").

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Average wind speed in December
Knightdale, NC

Average wind speed in December - Knightdale, NC
  • Average wind speed in December: 6.9mph

The windiest month (with the highest average wind speed) is April (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity in December
Knightdale, NC

Average humidity in December - Knightdale, NC
  • Average humidity in December: 77%

Months with the highest relative humidity are May, September and December (77%).
Months with the lowest relative humidity are January and November (73%).

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Average rainfall in December
Knightdale, NC

Average rainfall in December - Knightdale, NC
  • Average rainfall in December: 2.6"

The wettest month (with the highest rainfall) is August (3.7").
The driest month (with the least rainfall) is October (2.2").

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Average rainfall days in December
Knightdale, NC

Average rainfall days in December - Knightdale, NC
  • Average rainfall days in December: 11.4 days

The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (9.5 days).

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Average snowfall in December
Knightdale, NC

Average snowfall in December - Knightdale, NC
  • Average snowfall in December: 0.47"

The month with the highest snowfall is January (1.42").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Knightdale, NC

Average snowfall days in December - Knightdale, NC
  • Average snowfall days in December: 0.8 days

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

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Average daylight in December /
Average sunshine in December
Knightdale, NC

Average daylight in December / Average sunshine in December - Knightdale, NC
  • Average daylight in December: 9.8h

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in December: 5.5h

The month with the most sunshine is June (Average sunshine: 10.8h).
The month with the least sunshine is December (Average sunshine: 5.5h).

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Average sunshine days in December
Knightdale, NC

Average sunshine days in December - Knightdale, NC
  • Average sunshine days in December: 18.1 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is July (9.7 days).

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Average UV index in December
Knightdale, NC

Average UV index in December - Knightdale, NC
  • Average UV index in December: 3

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

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Average cloud cover in December
Knightdale, NC

Average cloud cover in December - Knightdale, NC
  • Average cloud cover in December: 41

Months with the most cloud cover are February and March (Cloud cover 42).
Months with the least cloud cover are June and July (Cloud cover 31).

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Average visibility in December
Knightdale, NC

Average visibility in December - Knightdale, NC
  • Average visibility in December: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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