December weather forecast
Calypso, NC

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Weather in December

The first month of the winter, December, is also a fresh month in Calypso, North Carolina, with an average temperature fluctuating between 39.9°F (4.4°C) and 54.3°F (12.4°C).

Temperature

In Calypso, the average high-temperature in December slightly decreases from a mild 60.6°F (15.9°C) in November to a fresh 54.3°F (12.4°C). Throughout December, the average low-temperature dips to an icy 39.9°F (4.4°C).

Humidity

In December, the average relative humidity is 77%.

Rainfall

In Calypso, North Carolina, during December, the rain falls for 11.1 days and regularly aggregates up to 2.64" (67mm) of precipitation. In Calypso, during the entire year, the rain falls for 166 days and collects up to 34.33" (872mm) of precipitation.

Snowfall

Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 0.28" (7mm) of snow. In Calypso, during the entire year, snow falls for 2.2 days and aggregates up to 1.89" (48mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 48min of daylight.
On the first day of December, sunrise is at 7:02 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:10 pm EST.

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 is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 3 in December translates into these instructions:
Undertake precautions - Guarding against sun damage is counselled. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Calypso in December?

In December, in Calypso, the average high-temperature is 54.3°F (12.4°C), and the average low-temperature is 39.9°F (4.4°C). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is evaluated at 87.8°F (31°C).

What is the average humidity in December in Calypso?

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

How much does it rain in December?

In Calypso, during December, the rain falls for 11.1 days and regularly aggregates up to 2.64" (67mm) of precipitation.

When does it start snowing?

December is the first month it typically snows. Throughout December, in the average 0.2 snowfall days, it receives 0.28" (7mm) of snow.

What is the month with the shortest days in Calypso?

The month with the shortest days is December, with an average of 9h and 48min of daylight.

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

The average day length in December is 9h and 50min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:02 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:10 pm EST.

What is the month with the least sunshine?

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

How long on average sun shines in December?

In December, the average sunshine duration is 5.5h.

What is the UV index intensity in December?

In Calypso, the average daily maximum UV index in December is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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
Calypso, NC

Average temperature in December - Calypso, NC
  • Average high temperature in December: 54.3°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (49.8°F).

  • Average low temperature in December: 39.9°F

The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (34.5°F).

Average pressure in December
Calypso, NC

Average pressure in December - Calypso, NC
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in December
Calypso, NC

Average wind speed in December - Calypso, NC
  • Average wind speed in December: 7.2mph

The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in December
Calypso, NC

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

The months with the highest relative humidity are May, June, August and September (78%).
The month with the lowest relative humidity is January (73%).

Average rainfall in December
Calypso, NC

Average rainfall in December - Calypso, NC
  • Average rainfall in December: 2.64"

The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is January (1.77").

Average rainfall days in December
Calypso, NC

Average rainfall days in December - Calypso, NC
  • Average rainfall days in December: 11.1 days

The month with the highest number of rainy days is July (19.1 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in December
Calypso, NC

Average snowfall in December - Calypso, NC
  • Average snowfall in December: 0.28"

The month with the highest snowfall is January (0.83").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Calypso, NC

Average snowfall days in December - Calypso, NC
  • Average snowfall days in December: 0.2 days

The month with the highest number of snowfall days is January (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Calypso, 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 42min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in December
Calypso, NC

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

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is July (9.2 days).

Average UV index in December
Calypso, NC

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

The 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).

Average cloud cover in December
Calypso, NC

Average cloud cover in December - Calypso, 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 32).

Average visibility in December
Calypso, NC

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

The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).

Calypso, North Carolina, USA

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