December weather forecastSlaughter Beach, DE
December
Weather in December
December brings Slaughter Beach back full circle to winter, with temperatures ranging from 36.3°F (2.4°C) to 46.8°F (8.2°C). Characterized by the shortest daylight hours and reduced sunshine, this month is visibly colder. The frequency of rainfall remains static, but an increment is noticed in snowfall days. Coupled with consistent wind speed and high humidity, December presents a predictable forecast for weather patterns. With the maximum cloud percentage for the year, this month wraps up with clear indications of wintry weather.Temperature
The arrival of December correlates with a minor temperature reduction, down from November's fresh 54.5°F (12.5°C) to a frosty 46.8°F (8.2°C). During December, Slaughter Beach records an average temperature of 36.3°F (2.4°C) at night.Humidity
In December, the average relative humidity in Slaughter Beach is 77%.Rainfall
In Slaughter Beach, in December, during 10.2 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. In Slaughter Beach, during the entire year, the rain falls for 152.4 days and collects up to 25.94" (659mm) of precipitation.Snowfall
Months with snowfall are January through March, May, November and December. In December, it is snowing for 1.7 days. Throughout December, 0.83" (21mm) of snow is accumulated. In Slaughter Beach, Delaware, during the entire year, snow falls for 10.4 days and aggregates up to 4.29" (109mm) of snow.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year in Slaughter Beach.On the first day of the month, sunrise is at 7:01 am and sunset at 4:39 pm. On the last day of December, in Slaughter Beach, sunrise is at 7:19 am and sunset at 4:49 pm EST.
Sunshine
In Slaughter Beach, the average sunshine in December is 5.2h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Slaughter Beach. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Slaughter Beach, DE
- Average high temperature in December: 46.8°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in December: 36.3°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 (29.7°F).
Average pressure in December
Slaughter Beach, DE
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Slaughter Beach, DE
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is February (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in December
Slaughter Beach, DE
- Average humidity in December: 77%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in December
Slaughter Beach, DE
- Average rainfall in December: 1.89"
The wettest month (with the highest rainfall) is August (3.07").
The driest month (with the least rainfall) is January (1.5").
Average rainfall days in December
Slaughter Beach, DE
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in December
Slaughter Beach, DE
- Average snowfall in December: 0.83"
The month with the highest snowfall is January (1.22").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in December
Slaughter Beach, DE
- Average snowfall days in December: 1.7 days
The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are April, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Slaughter Beach, DE
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in December
Slaughter Beach, DE
- Average sunshine days in December: 18.8 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is July (11.6 days).
Average UV index in December
Slaughter Beach, DE
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Slaughter Beach, DE
- Average cloud cover in December: 44
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
Slaughter Beach, DE
- 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).
