December weather forecast
Slaughter Beach, DE

Share

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.
[Resources]

Frequently asked questions

What is the temperature in December in Slaughter Beach?

In Slaughter Beach, in December, the average high-temperature is 46.8°F (8.2°C), and the average low-temperature is 36.3°F (2.4°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 87.8°F (31°C).

What is the average humidity in December in Slaughter Beach?

The average relative humidity in December in Slaughter Beach is 77%.

How many days does it rain in December in Slaughter Beach?

In December, in Slaughter Beach, the rain falls for 10.2 days. Throughout December, 1.89" (48mm) of precipitation is accumulated.

How many days does it snow in December in Slaughter Beach?

In December, in Slaughter Beach, Delaware, it is snowing for 1.7 days. Throughout December, 0.83" (21mm) of snow is accumulated.

What is the month with the shortest days in Slaughter Beach?

December has the shortest days of the year in Slaughter Beach, with an average of 9h and 30min of daylight.

How many hours of daylight does Slaughter Beach have in December?

The average day length in December in Slaughter Beach, Delaware, is 9h and 29min.

When are sunrise and sunset in December in Slaughter Beach?

In December, on the first day of the month, sunrise is at 7:01 am and sunset at 4:39 pm. On the last day of the month, in Slaughter Beach, sunrise is at 7:19 am and sunset at 4:49 pm EST.

How long on average sun shines in December in Slaughter Beach?

The average sunshine duration in December in Slaughter Beach, Delaware, is 5.2h.

When is the lowest UV index in Slaughter Beach?

The months with the lowest UV index in Slaughter Beach are January and December, with an average maximum UV index of 2.

What is the UV index reading in December in Slaughter Beach?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.
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
Slaughter Beach, DE

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).

[Resources]

Average pressure in December
Slaughter Beach, DE

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).

[Resources]

Average wind speed in December
Slaughter Beach, DE

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).

[Resources]

Average humidity in December
Slaughter Beach, DE

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%).

[Resources]

Average rainfall in December
Slaughter Beach, DE

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").

[Resources]

Average rainfall days in December
Slaughter Beach, DE

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).

[Resources]

Average snowfall in December
Slaughter Beach, DE

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").

[Resources]

Average snowfall days in December
Slaughter Beach, DE

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).

[Resources]

Average daylight in December /
Average sunshine in December
Slaughter Beach, DE

Average daylight in December / Average sunshine in December - Slaughter Beach, DE
  • Average daylight in December: 9h and 3min

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 1min

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).

[Resources]

Average sunshine days in December
Slaughter Beach, DE

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).

[Resources]

Average UV index in December
Slaughter Beach, DE

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).

[Resources]

Average cloud cover in December
Slaughter Beach, DE

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).

[Resources]

Average visibility in December
Slaughter Beach, DE

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).

[Resources]

Slaughter Beach, Delaware, USA

Weather forecast for your location

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