January weather forecast
Seaford, DE

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Weather in January

January introduces Seaford, Delaware to the new year with wintry weather conditions. An average mixture of moderate wetness and cold is observed this month. The bareness of trees is an indicator of the coldest temperature registered which come to 29.1°F (-1.6°C) as the lowest. Looking to skies, partial cloud cover offers a slightly gloomy feel. The weather transitions to a slightly milder state as the month progresses paving way for February.

Temperature

January is the coldest month in Seaford, with the temperature often reaching an average high of 41.5°F (5.3°C) and an average low of 29.1°F (-1.6°C).

Humidity

With an average relative humidity of 74%, January is the least humid month in Seaford.

Rainfall

In Seaford, in January, during 5.2 rainfall days, 0.47" (12mm) of precipitation is typically accumulated. In Seaford, during the entire year, the rain falls for 95.8 days and collects up to 8.03" (204mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. January is the month with the most snowfall in Seaford. Snow falls for 2 days and accumulates 0.35" (9mm) of snow.

Daylight

The average length of the day in January in Seaford, Delaware, is 9h and 50min.
On the first day of January in Seaford, sunrise is at 7:20 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:22 pm EST.

Sunshine

In January, the average sunshine 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 estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 2 in January transforms into the following instructions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.

Frequently asked questions

What is the coldest time of year in Seaford?

January brings the lowest temperatures in Seaford, Delaware, with an average high of 41.5°F (5.3°C) and an average low of 29.1°F (-1.6°C).

Is it cold in Seaford during January?

An average high-temperature, in January, in Seaford, is 41.5°F (5.3°C) and the average low-temperature is 29.1°F (-1.6°C).

What is the least humid month in Seaford?

January is the least humid month, with an average relative humidity of 74%.

What is the average humidity in January in Seaford?

The average relative humidity in January in Seaford, Delaware, is 74%.

How many days does it rain in January in Seaford?

In Seaford, during January, the rain falls for 5.2 days and regularly aggregates up to 0.47" (12mm) of precipitation.

When does it snow the most in Seaford?

The month with the most snowfall is January, when snow falls for 2 days and typically aggregates up to 0.35" (9mm) of snow.

How many days does it snow in January in Seaford?

In January, in Seaford, Delaware, it is snowing for 2 days. Throughout January, 0.35" (9mm) of snow is accumulated.

What is the average length of the day in January in Seaford?

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

When are sunrise and sunset in January in Seaford?

On the first day of January in Seaford, sunrise is at 7:20 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:22 pm EST.

How many hours of sunshine does Seaford have in January?

The average sunshine duration in January is 5.4h.

What is the month with the lowest UV index in Seaford?

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

How high is the UV index in January in Seaford?

In January, the average daily maximum UV index in Seaford, Delaware, is 2. A UV Index estimate of 2, and below, represents a minimal health 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 January
Seaford, DE

Average temperature in January - Seaford, DE
  • Average high temperature in January: 41.5°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in January: 29.1°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).

Average pressure in January
Seaford, DE

Average pressure in January - Seaford, DE
  • Average pressure in January: 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 January
Seaford, DE

Average wind speed in January - Seaford, DE
  • Average wind speed in January: 9.4mph

The windiest month (with the highest average wind speed) is February (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in January
Seaford, DE

Average humidity in January - Seaford, DE
  • Average humidity in January: 74%

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

Average rainfall in January
Seaford, DE

Average rainfall in January - Seaford, DE
  • Average rainfall in January: 0.47"

The wettest months (with the highest rainfall) are July and August (1.06").
The driest month (with the least rainfall) is September (0.39").

Average rainfall days in January
Seaford, DE

Average rainfall days in January - Seaford, DE
  • Average rainfall days in January: 5.2 days

The month with the highest number of rainy days is July (12 days).
The month with the least rainy days is November (4.9 days).

Average snowfall in January
Seaford, DE

Average snowfall in January - Seaford, DE
  • Average snowfall in January: 0.35"

The month with the highest snowfall is January (0.35").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in January
Seaford, DE

Average snowfall days in January - Seaford, DE
  • Average snowfall days in January: 2 days

The month with the highest number of snowfall days is January (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in January /
Average sunshine in January
Seaford, DE

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

The month with the longest days is June (Average daylight: 14h and 48min).
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 6min).

Average sunshine days in January
Seaford, DE

Average sunshine days in January - Seaford, DE
  • Average sunshine days in January: 23.7 days

The month with the most sunshine days is November (23.9 days).
The month with the least sunshine days is July (15.7 days).

Average UV index in January
Seaford, DE

Average UV index in January - Seaford, 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).

Average cloud cover in January
Seaford, DE

Average cloud cover in January - Seaford, DE
  • Average cloud cover in January: 42

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in January
Seaford, DE

Average visibility in January - Seaford, 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).

Seaford, Delaware, USA

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