December weather forecastCastle Hayne, NC
December
Weather in December
The first month of the winter, December, is still a refreshing month in Castle Hayne, North Carolina, with an average temperature ranging between max 58.1°F (14.5°C) and min 45.5°F (7.5°C).Temperature
In December, the meteorological conditions change slightly, with the average high-temperature moving from a refreshing 63.9°F (17.7°C) in November to a mild 58.1°F (14.5°C). Castle Hayne experiences a nighttime temperature average of 45.5°F (7.5°C) during December.Humidity
The months with the highest humidity are August, September and December, with an average relative humidity of 77%.Rainfall
In Castle Hayne, during December, the rain falls for 11.6 days and regularly aggregates up to 3.43" (87mm) of precipitation. In Castle Hayne, North Carolina, during the entire year, the rain falls for 182.5 days and collects up to 41.42" (1052mm) of precipitation.Snowfall
In Castle Hayne, snow does not fall in April through December.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:00 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:12 pm EST.
Sunshine
With an average of 5.5h of sunshine, December has the least sunshine of the year.UV index
January, February and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index, 3 during December, leads to the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Castle Hayne, NC
- Average high temperature in December: 58.1°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (54°F).
- Average low temperature in December: 45.5°F
The month with the highest average low temperature is July (75.4°F).
The coldest month (with the lowest average low temperature) is January (40.1°F).
Average pressure in December
Castle Hayne, NC
- Average pressure in December: 30.13"Hg
The months with the highest atmospheric pressure are January and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in December
Castle Hayne, NC
- Average wind speed in December: 8.7mph
The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in December
Castle Hayne, NC
- Average humidity in December: 77%
The months with the highest relative humidity are August, September and December (77%).
The months with the lowest relative humidity are January and March (73%).
Average rainfall in December
Castle Hayne, NC
- Average rainfall in December: 3.43"
The wettest month (with the highest rainfall) is August (5.59").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in December
Castle Hayne, NC
- Average rainfall days in December: 11.6 days
The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (10.6 days).
Average snowfall in December
Castle Hayne, NC
- Average snowfall in December: 0"
The month with the highest snowfall is January (0.75").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Castle Hayne, NC
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Castle Hayne, NC
- Average daylight in December: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 5h and 30min
The months with the most sunshine are June and July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in December
Castle Hayne, NC
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is August (6.3 days).
Average UV index in December
Castle Hayne, NC
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in December
Castle Hayne, NC
- Average cloud cover in December: 40
The months with the most cloud cover are February and December (Cloud cover 40).
The months with the least cloud cover are June and July (Cloud cover 27).
Average visibility in December
Castle Hayne, 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).
