December weather forecast
Morrisville, NC

Share

Weather in December

The first month of the winter, December, is also a fresh month in Morrisville, North Carolina, with an average temperature fluctuating between 52.3°F (11.3°C) and 38.1°F (3.4°C).

Temperature

With the beginning of December, the average high-temperature shows a small decrease, transitioning from a moderate 59.4°F (15.2°C) in November to a fresh 52.3°F (11.3°C). Morrisville records a consistent low-temperature of 38.1°F (3.4°C) during December nights.

Humidity

With an average relative humidity of 76%, December is the most humid month.

Rainfall

In Morrisville, during December, the rain falls for 10.7 days and regularly aggregates up to 2.56" (65mm) of precipitation. Throughout the year, in Morrisville, North Carolina, there are 161.9 rainfall days, and 31.18" (792mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Morrisville are January through March, November and December. In Morrisville, North Carolina, in December, during 0.8 snowfall days, 0.67" (17mm) of snow is typically accumulated. Throughout the year, in Morrisville, there are 5.9 snowfall days, and 4.37" (111mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 48min of daylight.
On the first day of the month, sunrise is at 7:07 am and sunset at 5:01 pm. On the last day of December, sunrise is at 7:25 am and sunset at 5:11 pm EST.

Sunshine

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

UV index

The average daily maximum UV index in December in Morrisville is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: During December, 3 as the daily maximum UV index converts into the following advice:
Take necessary precautions - Protection from skin and eye injury is mandatory. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
[Resources]

Frequently asked questions

What is the usual temperature for Morrisville in December?

The high-temperature, in December, in Morrisville, is 52.3°F (11.3°C), while the low-temperature averages to 38.1°F (3.4°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in September is evaluated at 87.8°F (31°C).

What is the most humid month in Morrisville?

December is the most humid month, with an average relative humidity of 76%.

What is the average humidity in December in Morrisville?

In Morrisville, the average relative humidity in December is 76%.

How much does it rain in Morrisville in December?

In Morrisville, in December, during 10.7 rainfall days, 2.56" (65mm) of precipitation is typically accumulated.

How much does it snow in Morrisville in December?

In Morrisville, in December, during 0.8 snowfall days, 0.67" (17mm) of snow is typically accumulated.

What is the month with the shortest days in Morrisville?

December has the shortest days of the year in Morrisville, North Carolina, with an average of 9h and 48min of daylight.

How many hours of daylight does Morrisville have in December?

The average day length in December is 9h and 47min.

What time are sunrise and sunset in December in Morrisville?

In December, on the first day of the month, sunrise is at 7:07 am and sunset at 5:01 pm. On the last day of the month, in Morrisville, North Carolina, sunrise is at 7:25 am and sunset at 5:11 pm EST.

What is the month with the least sunshine in Morrisville?

With an average of 5.5h of sunshine, December has the least sunshine of the year in Morrisville.

How many hours of sunshine does Morrisville have in December?

In December, the average sunshine duration in Morrisville, North Carolina, is 5.5h.

How high is the UV index in December in Morrisville?

In Morrisville, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
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 December
Morrisville, NC

Average temperature in December - Morrisville, NC
  • Average high temperature in December: 52.3°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 December: 38.1°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).

[Resources]

Average pressure in December
Morrisville, NC

Average pressure in December - Morrisville, NC
  • Average pressure in December: 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).

[Resources]

Average wind speed in December
Morrisville, NC

Average wind speed in December - Morrisville, NC
  • Average wind speed in December: 6.4mph

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).

[Resources]

Average humidity in December
Morrisville, NC

Average humidity in December - Morrisville, NC
  • Average humidity in December: 76%

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

[Resources]

Average rainfall in December
Morrisville, NC

Average rainfall in December - Morrisville, NC
  • Average rainfall in December: 2.56"

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

[Resources]

Average rainfall days in December
Morrisville, NC

Average rainfall days in December - Morrisville, NC
  • Average rainfall days in December: 10.7 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).

[Resources]

Average snowfall in December
Morrisville, NC

Average snowfall in December - Morrisville, NC
  • Average snowfall in December: 0.67"

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").

[Resources]

Average snowfall days in December
Morrisville, NC

Average snowfall days in December - Morrisville, NC
  • Average snowfall days in December: 0.8 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).

[Resources]

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

Average daylight in December / Average sunshine in December - Morrisville, NC
  • Average daylight in December: 9h and 5min

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 December: 5h and 3min

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).

[Resources]

Average sunshine days in December
Morrisville, NC

Average sunshine days in December - Morrisville, NC
  • Average sunshine days in December: 18.8 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).

[Resources]

Average UV index in December
Morrisville, NC

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

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

[Resources]

Average cloud cover in December
Morrisville, NC

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

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

[Resources]

Average visibility in December
Morrisville, NC

Average visibility in December - Morrisville, NC
  • Average visibility in December: 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).

[Resources]

Morrisville, North Carolina, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location