January weather forecast
South Bethany, DE

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Weather in January

January in South Bethany, Delaware, is characterized by a blend of low temperatures and a high chance of rainfall. In comparison to December, there is a slight increase in temperatures, but they remain typically low. The rainfall experienced is also less compared to the highest rainfall months but is recorded at 1.38" (35mm). Surrounding areas are likely to be blanketed with snow, as the season's chill truly sets in, and people outdoors can expect to wear winter attire. Daily sunshine hours and daylight hours are typically shorter, which contributes to the cooler atmosphere in January.

Temperature

January, marked by an average high-temperature of 41.7°F (5.4°C) and a low-temperature of 33.4°F (0.8°C), is the coldest month.

Humidity

In South Bethany, the average relative humidity in January is 74%.

Rainfall

The month with the least rainfall is January, when the rain falls for 8.5 days and typically collects 1.38" (35mm) of precipitation.

Snowfall

Months with snowfall are January through March and December. The month with the most snowfall in South Bethany, Delaware, is January, when snow falls for 2.8 days and typically aggregates up to 0.55" (14mm) of snow.

Daylight

In January, the average length of the day is 9h and 50min.
On the first day of January in South Bethany, sunrise is at 7:17 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:20 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 low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In January, a daily maximum UV index of 2 leads to the following instructions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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Frequently asked questions

What month is the coldest in South Bethany?

The coldest period tends to be January, when average temperatures fluctuate between a high of 41.7°F (5.4°C) and a low of 33.4°F (0.8°C).

Is January cold in South Bethany?

The high-temperature during January is 41.7°F (5.4°C) and the low-temperature is 33.4°F (0.8°C).

What is the average humidity in January in South Bethany?

In January, the average relative humidity is 74%.

What is the driest month in South Bethany?

The month with the least rainfall in South Bethany, Delaware, is January, when the rain falls for 8.5 days and typically collects 1.38" (35mm) of precipitation.

How much does it rain in South Bethany in January?

In January, in South Bethany, Delaware, the rain falls for 8.5 days. Throughout January, 1.38" (35mm) of precipitation is accumulated.

What is the snowiest month in South Bethany?

The month with the most snowfall in South Bethany, Delaware, is January, when snow falls for 2.8 days and typically aggregates up to 0.55" (14mm) of snow.

How much does it snow in South Bethany in January?

In South Bethany, Delaware, in January, snow falls for 2.8 days, with typically accumulated 0.55" (14mm) of snow.

What is the average length of the day in January in South Bethany?

In South Bethany, Delaware, the average day length in January is 9h and 50min.

What time are sunrise and sunset in January in South Bethany?

In January, on the first day of the month, sunrise is at 7:17 am and sunset at 4:49 pm. On the last day of the month, in South Bethany, Delaware, sunrise is at 7:06 am and sunset at 5:20 pm EST.

How many hours of sunshine does South Bethany have in January?

The average sunshine duration in January in South Bethany, Delaware, is 5.4h.

When is the lowest UV index in South Bethany?

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

How high is the UV index in January in South Bethany?

The average daily maximum UV index in January in South Bethany, Delaware, is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
47.8°F 8.8°C
41.7°F 5.4°C
43.2°F 6.2°C
Average low temperature
40.1°F 4.5°C
33.4°F 0.8°C
35.2°F 1.8°C
Average pressure
30.1" 765mmHg
30.09" 764mmHg
30.06" 764mmHg
Average wind speed
13mph 20.9km/h
13.5mph 21.7km/h
13.2mph 21.2km/h
Average max. wind speed
14mph 22.5km/h
14.4mph 23.2km/h
14mph 22.5km/h
Average wind speed gusts
20mph 32.2km/h
20.8mph 33.5km/h
21.4mph 34.4km/h
Average humidity
76%
74%
75%
Average rainfall
1.81" 46mm
1.38" 35mm
1.61" 41mm
Average rainfall days
11.1
8.5
8.8
Average snowfall
0.2" 5mm
0.55" 14mm
0.39" 10mm
Average snowfall days
1.7
2.8
2.2
Average daylight
9h 3min
9h 5min
10h 5min
Average sunshine
5h 1min
5h 2min
5h 0min
Average sunshine days
16.3
18.4
15.3
Average UV index
2
2
3
Average cloud cover
45%
43%
45%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
South Bethany, DE

Average temperature in January - South Bethany, DE
  • Average high temperature in January: 41.7°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (41.7°F).

  • Average low temperature in January: 33.4°F

The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

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Average pressure in January
South Bethany, DE

Average pressure in January - South Bethany, 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
South Bethany, DE

Average wind speed in January - South Bethany, DE
  • Average wind speed in January: 13.5mph

The windiest month (with the highest average wind speed) is January (13.5mph).
The calmest month (with the lowest average wind speed) is August (9.3mph).

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Average humidity in January
South Bethany, DE

Average humidity in January - South Bethany, DE
  • Average humidity in January: 74%

The month with the highest relative humidity is May (82%).
The month with the lowest relative humidity is November (73%).

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Average rainfall in January
South Bethany, DE

Average rainfall in January - South Bethany, DE
  • Average rainfall in January: 1.38"

The wettest month (with the highest rainfall) is August (2.68").
The driest month (with the least rainfall) is January (1.38").

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Average rainfall days in January
South Bethany, DE

Average rainfall days in January - South Bethany, DE
  • Average rainfall days in January: 8.5 days

The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is January (8.5 days).

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Average snowfall in January
South Bethany, DE

Average snowfall in January - South Bethany, DE
  • Average snowfall in January: 0.55"

The month with the highest snowfall is January (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in January
South Bethany, DE

Average snowfall days in January - South Bethany, DE
  • Average snowfall days in January: 2.8 days

The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in January /
Average sunshine in January
South Bethany, DE

Average daylight in January / Average sunshine in January - South Bethany, 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 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in January
South Bethany, DE

Average sunshine days in January - South Bethany, DE
  • Average sunshine days in January: 18.4 days

The months with the most sunshine days are January and November (18.4 days).
The month with the least sunshine days is August (13.2 days).

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Average UV index in January
South Bethany, DE

Average UV index in January - South Bethany, 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
South Bethany, DE

Average cloud cover in January - South Bethany, DE
  • Average cloud cover in January: 43

The months with the most cloud cover are February, March and December (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 26).

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Average visibility in January
South Bethany, DE

Average visibility in January - South Bethany, 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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South Bethany, Delaware, USA

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