January weather forecast
Slaughter Beach, DE

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Weather in January

January in Slaughter Beach, Delaware brings a cold winter chill, with temperatures fluctuating between 29.7°F (-1.3°C) and 40.6°F (4.8°C), making it the coldest month of the year. Shorter hours of daylight, paired with increased cloud percentage makes the winter weather feel even colder. Distinct winter precipitation patterns manifest, with both rainfall and snowfall events markedly noticeable. Despite the lower temperatures, the relative humidity remains consistent. The brisk, winter wind is another factor to consider while planning outdoor activities during January.

Temperature

Temperature records in Slaughter Beach mark January as the coldest month, with highs averaging 40.6°F (4.8°C) and lows at 29.7°F (-1.3°C).

Humidity

The months with the lowest humidity are January and November, with an average relative humidity of 74%.

Rainfall

The month with the least rainfall is January, when the rain falls for 8.4 days and typically collects 1.5" (38mm) of precipitation.

Snowfall

Months with snowfall are January through March, May, November and December. The month with the most snowfall is January, when snow falls for 3.3 days and typically aggregates up to 1.22" (31mm) of snow.

Daylight

In Slaughter Beach, the average length of the day in January is 9h and 49min.
On the first day of the month, sunrise is at 7:19 am and sunset at 4:49 pm. On the last day of January, sunrise is at 7:08 am and sunset at 5:20 pm EST.

Sunshine

In January, the average sunshine in Slaughter Beach is 5.4h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 2 during January translates into the following directions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
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Frequently asked questions

What is the coldest time of year in Slaughter Beach?

January brings the lowest temperatures in Slaughter Beach, with an average high of 40.6°F (4.8°C) and an average low of 29.7°F (-1.3°C).

Is it cold in Slaughter Beach during January?

January temperatures vary between a high-temperature of 40.6°F (4.8°C) and a low-temperature of 29.7°F (-1.3°C).

What is the least humid month in Slaughter Beach?

January and November, with an average relative humidity of 74%, are the least humid months.

What is the average humidity in January in Slaughter Beach?

In January, the average relative humidity in Slaughter Beach, Delaware, is 74%.

What is the driest month in Slaughter Beach?

The month with the least rainfall in Slaughter Beach, Delaware, is January, when the rain falls for 8.4 days and typically collects 1.5" (38mm) of precipitation.

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

In Slaughter Beach, Delaware, in January, during 8.4 rainfall days, 1.5" (38mm) of precipitation is typically accumulated.

What is the snowiest month in Slaughter Beach?

The month with the most snowfall is January, when snow falls for 3.3 days and typically aggregates up to 1.22" (31mm) of snow.

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

In January, in Slaughter Beach, it is snowing for 3.3 days. Throughout January, 1.22" (31mm) of snow is accumulated.

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

The average day length in January in Slaughter Beach, Delaware, is 9h and 49min.

When is the sunrise / sunset in January in Slaughter Beach?

On the first day of January in Slaughter Beach, sunrise is at 7:19 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:20 pm EST.

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

In Slaughter Beach, Delaware, the average sunshine duration in January is 5.4h.

What is the month with the lowest UV index in Slaughter Beach?

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

What is the UV index intensity in January in Slaughter Beach?

The average daily maximum UV index in January in Slaughter Beach is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe 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 January
Slaughter Beach, DE

Average temperature in January - Slaughter Beach, DE
  • Average high temperature in January: 40.6°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 January: 29.7°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).

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Average pressure in January
Slaughter Beach, DE

Average pressure in January - Slaughter Beach, DE
  • Average pressure in January: 30.09"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).

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Average wind speed in January
Slaughter Beach, DE

Average wind speed in January - Slaughter Beach, DE
  • Average wind speed in January: 10.3mph

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).

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Average humidity in January
Slaughter Beach, DE

Average humidity in January - Slaughter Beach, DE
  • Average humidity in January: 74%

The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January and November (74%).

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Average rainfall in January
Slaughter Beach, DE

Average rainfall in January - Slaughter Beach, DE
  • Average rainfall in January: 1.5"

The wettest month (with the highest rainfall) is August (3.07").
The driest month (with the least rainfall) is January (1.5").

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Average rainfall days in January
Slaughter Beach, DE

Average rainfall days in January - Slaughter Beach, DE
  • Average rainfall days in January: 8.4 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).

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Average snowfall in January
Slaughter Beach, DE

Average snowfall in January - Slaughter Beach, DE
  • Average snowfall in January: 1.22"

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").

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Average snowfall days in January
Slaughter Beach, DE

Average snowfall days in January - Slaughter Beach, DE
  • Average snowfall days in January: 3.3 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).

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

Average daylight in January / Average sunshine in January - Slaughter Beach, DE
  • Average daylight in January: 9h and 5min

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 January: 5h and 2min

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).

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Average sunshine days in January
Slaughter Beach, DE

Average sunshine days in January - Slaughter Beach, DE
  • Average sunshine days in January: 19.6 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).

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Average UV index in January
Slaughter Beach, DE

Average UV index in January - Slaughter Beach, DE
  • Average UV index in January: 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).

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Average cloud cover in January
Slaughter Beach, DE

Average cloud cover in January - Slaughter Beach, DE
  • Average cloud cover in January: 42

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).

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Average visibility in January
Slaughter Beach, DE

Average visibility in January - Slaughter Beach, DE
  • Average visibility in January: 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).

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Slaughter Beach, Delaware, USA

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