January weather forecast and climate
Smyrna, DE

Weather in January

January, like December, in Smyrna, Delaware, is another cold winter month, with temperature in the range of an average high of 39.2°F (4°C) and an average low of 27.9°F (-2.3°C).

Temperature

January is the coldest month, with an average high-temperature of 39.2°F (4°C) and an average low-temperature of 27.9°F (-2.3°C).

Humidity

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

Rainfall

The month with the least rainfall in Smyrna is January when the rain falls for 9.7 days and typically collects 2.13" (54mm) of precipitation.

Snowfall

Months with snowfall in Smyrna, Delaware, are January through April, November and December. In January, it is snowing for 4.5 days. Throughout January, 2.09" (53mm) of snow is accumulated. In Smyrna, Delaware, during the entire year, snow falls for 14.4 days, and aggregates up to 7.44" (189mm) of snow.

Daylight

In January, the average length of the day in Smyrna is 9.8h.

Sunshine

The average sunshine in January is 5.3h.

UV index

Months with the lowest UV index in Smyrna, Delaware, are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 2 in January interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Smyrna?

With an average high-temperature of 39.2°F (4°C) and an average low-temperature of 27.9°F (-2.3°C), January is the coldest month.

What is the temperature in January in Smyrna?

In January, in Smyrna, Delaware, the average high-temperature is 39.2°F (4°C), and the average low-temperature is 27.9°F (-2.3°C).

What is the average humidity in January in Smyrna?

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

How many days does it rain in January in Smyrna?

In Smyrna, during January, the rain falls for 9.7 days and regularly aggregates up to 2.13" (54mm) of precipitation.

What is the driest month in Smyrna?

The month with the least rainfall in Smyrna, Delaware, is January when the rain falls for 9.7 days and typically collects 2.13" (54mm) of precipitation.

How many days does it snow in January in Smyrna?

In Smyrna, during January, snow falls for 4.5 days and regularly aggregates up to 2.09" (53mm) of snow.

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

In January, the average length of the day is 9.8h.

How long on average sun shines in January in Smyrna?

In January, the average sunshine is 5.3h.

What are the months with the lowest UV index in Smyrna?

Months with the lowest UV index in Smyrna, Delaware, are January and December, with an average maximum UV index of 2.

How high is the UV index in January in Smyrna?

The average daily maximum UV index in January in Smyrna, Delaware, is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to the UV radiation.

Average temperature in January
Smyrna, DE

Average temperature in January - Smyrna, DE
  • Average high temperature in January: 39.2°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 (39.2°F).

  • Average low temperature in January: 27.9°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).

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Average pressure in January
Smyrna, DE

Average pressure in January - Smyrna, DE
  • Average pressure in January: 30.09"

The month with the highest atmospheric pressure is November (30.12").
The month with the lowest atmospheric pressure is June (29.94").

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Average wind speed in January
Smyrna, DE

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

The windiest months (with the highest average wind speed) are February and March (9.5mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in January
Smyrna, DE

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

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in January
Smyrna, DE

Average rainfall in January - Smyrna, DE
  • Average rainfall in January: 2.13"

The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (2.13").

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Average rainfall days in January
Smyrna, DE

Average rainfall days in January - Smyrna, DE
  • Average rainfall days in January: 9.7 days

The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (9.3 days).

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Average snowfall in January
Smyrna, DE

Average snowfall in January - Smyrna, DE
  • Average snowfall in January: 2.09"

The month with the highest snowfall is March (2.6").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Smyrna, DE

Average snowfall days in January - Smyrna, DE
  • Average snowfall days in January: 4.5 days

The month with the highest number of snowfall days is January (4.5 days).
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
Smyrna, DE

Average daylight in January / Average sunshine in January - Smyrna, DE
  • Average daylight in January: 9.8h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in January: 5.3h

The month with the most sunshine is July (Average sunshine: 10.7h).
The month with the least sunshine is February (Average sunshine: 5.1h).

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Average sunshine days in January
Smyrna, DE

Average sunshine days in January - Smyrna, DE
  • Average sunshine days in January: 17.2 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (9.5 days).

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Average UV index in January
Smyrna, DE

Average UV index in January - Smyrna, DE
  • Average UV index in January: 2

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in January
Smyrna, DE

Average cloud cover in January - Smyrna, DE
  • Average cloud cover in January: 43

Months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in January
Smyrna, DE

Average visibility in January - Smyrna, DE
  • Average visibility in January: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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