January weather forecast
Smyrna, DE

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Weather in January

Smyrna starts the year with a noticeably chilly weather, as is expected during winter. January sees the lowest temperatures of the year, with an average low of 27.9°F (-2.3°C) and a high just barely peaking at 39.2°F (4°C). The intensity of the cold that Smyrna experiences can also be traced to the humidity which peaks at 74%. The relatively wet conditions extend to rainfall and snowfall, with accumulations being moderate. Despite the low temperatures, the start of the year provides ample opportunities for residents to enjoy outdoor activities, although adequate preparations are necessary for the weather conditions.

Temperature

With average temperatures fluctuating between a high of 39.2°F (4°C) and a low of 27.9°F (-2.3°C), January stands out as the coldest month in Smyrna.

Humidity

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

Rainfall

January is the month with the least rainfall. Rain falls for 9.7 days and accumulates 2.13" (54mm) of precipitation.

Snowfall

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

Daylight

In Smyrna, the average length of the day in January is 9h and 47min.
On the first day of the month, sunrise is at 7:22 am and sunset at 4:49 pm. On the last day of January, in Smyrna, sunrise is at 7:10 am and sunset at 5:21 pm EST.

Sunshine

In Smyrna, Delaware, the average sunshine in January is 5.3h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.
Note: An average UV index of 2 in January transforms into this advice:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

What part of the year is the coldest in Smyrna?

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

Is January cold in Smyrna?

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

What is the average humidity in January in Smyrna?

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

What is the driest month in Smyrna?

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.

How much does it rain in Smyrna in January?

In January, in Smyrna, the rain falls for 9.7 days. Throughout January, 2.13" (54mm) of precipitation is accumulated.

How much does it snow in Smyrna in January?

In January, in Smyrna, it is snowing for 4.5 days. Throughout January, 2.09" (53mm) of snow is accumulated.

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

The average day length in January in Smyrna is 9h and 47min.

What time are sunrise and sunset in January in Smyrna?

In January, on the first day of the month, sunrise is at 7:22 am and sunset at 4:49 pm. On the last day of the month, in Smyrna, sunrise is at 7:10 am and sunset at 5:21 pm EST.

How many hours of sunshine does Smyrna have in January?

In Smyrna, Delaware, the average sunshine duration in January is 5.3h.

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

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

What is the UV index intensity in January in Smyrna?

In Smyrna, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
45.9°F 7.7°C
39.2°F 4°C
43°F 6.1°C
Average low temperature
34.7°F 1.5°C
27.9°F -2.3°C
29.8°F -1.2°C
Average pressure
30.1" 765mmHg
30.09" 764mmHg
30.06" 764mmHg
Average wind speed
8.7mph 14km/h
9.4mph 15.1km/h
9.5mph 15.3km/h
Average max. wind speed
9.4mph 15.1km/h
10.1mph 16.3km/h
10.3mph 16.6km/h
Average wind speed gusts
14.3mph 23km/h
15.3mph 24.6km/h
15.5mph 24.9km/h
Average humidity
77%
74%
75%
Average rainfall
3.43" 87mm
2.13" 54mm
2.64" 67mm
Average rainfall days
11.5
9.7
10.3
Average snowfall
0.91" 23mm
2.09" 53mm
1.46" 37mm
Average snowfall days
2.5
4.5
4.1
Average daylight
9h 3min
9h 5min
10h 4min
Average sunshine
5h 1min
5h 2min
5h 1min
Average sunshine days
16.8
17.2
13.6
Average UV index
2
2
3
Average cloud cover
44%
43%
45%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

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"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
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").
The 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).
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
Smyrna, DE

Average daylight in January / Average sunshine in January - Smyrna, 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 42min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

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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

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
Smyrna, DE

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

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 29).

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Average visibility in January
Smyrna, DE

Average visibility in January - Smyrna, 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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Smyrna, Delaware, USA

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