January weather forecast
Martinsburg, WV

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Weather in January

In Martinsburg, West Virginia, the brisk and chilly air of January brings with it the lowest temperatures of the year. Notably, the mercury plummets to as low as 23.5°F (-4.7°C) making it the coldest month. White landscapes are common due to occasional snowfall, adding a picturesque layer to the city. The days are short, with relatively low daylight hours, and frequent cloud cover brings a subdued light to the town. Winds can be brisk, adding to the winter's chill.

Temperature

January, with an average high of 37.4°F (3°C) and a low of 23.5°F (-4.7°C), signifies the coldest month of the year in Martinsburg.

Humidity

In Martinsburg, the average relative humidity in January is 75%.

Rainfall

January is the month with the least rainfall. Rain falls for 4.5 days and accumulates 0.67" (17mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Martinsburg. The month with the most snowfall is January, when snow falls for 5.3 days and typically aggregates up to 1.26" (32mm) of snow.

Daylight

In January, the average length of the day is 9h and 46min.
On the first day of January, sunrise is at 7:31 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:30 pm EST.

Sunshine

With an average of 4.9h of sunshine, January has the least sunshine of the year in Martinsburg.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: During January, 2 as the daily maximum UV index converts into the following advice:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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Frequently asked questions

What time of the year is the coldest in Martinsburg?

January is Martinsburg's coldest month, registering average high temperatures of 37.4°F (3°C) and lows of 23.5°F (-4.7°C).

How cold is it in Martinsburg in January?

January temperatures vary between a high-temperature of 37.4°F (3°C) and a low-temperature of 23.5°F (-4.7°C).

What is the average humidity in January in Martinsburg?

In Martinsburg, West Virginia, the average relative humidity in January is 75%.

What is the driest month in Martinsburg?

January is the month with the least rainfall. Rain falls for 4.5 days and accumulates 0.67" (17mm) of precipitation.

How many days does it rain in January in Martinsburg?

In January, in Martinsburg, the rain falls for 4.5 days. Throughout January, 0.67" (17mm) of precipitation is accumulated.

When does it snow the most in Martinsburg?

The month with the most snowfall in Martinsburg is January, when snow falls for 5.3 days and typically aggregates up to 1.26" (32mm) of snow.

How much does it snow in Martinsburg in January?

In Martinsburg, West Virginia, in January, during 5.3 snowfall days, 1.26" (32mm) of snow is typically accumulated.

How many hours of daylight does Martinsburg have in January?

In Martinsburg, the average day length in January is 9h and 46min.

When are sunrise and sunset in January in Martinsburg?

On the first day of January in Martinsburg, sunrise is at 7:31 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:30 pm EST.

What is the month with the least sunshine in Martinsburg?

With an average of 4.9h of sunshine, January has the least sunshine of the year.

How long on average sun shines in January in Martinsburg?

The average sunshine duration in January in Martinsburg is 4.9h.

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

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

What is the UV index reading in January in Martinsburg?

The average daily maximum UV index in January in Martinsburg, West Virginia, is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health 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
Martinsburg, WV

Average temperature in January - Martinsburg, WV
  • Average high temperature in January: 37.4°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in January: 23.5°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).

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Average pressure in January
Martinsburg, WV

Average pressure in January - Martinsburg, WV
  • Average pressure in January: 30.11"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in January
Martinsburg, WV

Average wind speed in January - Martinsburg, WV
  • Average wind speed in January: 7.1mph

The windiest month (with the highest average wind speed) is March (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

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Average humidity in January
Martinsburg, WV

Average humidity in January - Martinsburg, WV
  • Average humidity in January: 75%

The months with the highest relative humidity are May, October and December (78%).
The month with the lowest relative humidity is July (73%).

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Average rainfall in January
Martinsburg, WV

Average rainfall in January - Martinsburg, WV
  • Average rainfall in January: 0.67"

The wettest month (with the highest rainfall) is July (1.5").
The driest month (with the least rainfall) is January (0.67").

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Average rainfall days in January
Martinsburg, WV

Average rainfall days in January - Martinsburg, WV
  • Average rainfall days in January: 4.5 days

The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is January (4.5 days).

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Average snowfall in January
Martinsburg, WV

Average snowfall in January - Martinsburg, WV
  • Average snowfall in January: 1.26"

The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Martinsburg, WV

Average snowfall days in January - Martinsburg, WV
  • Average snowfall days in January: 5.3 days

The month with the highest number of snowfall days is January (5.3 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
Martinsburg, WV

Average daylight in January / Average sunshine in January - Martinsburg, WV
  • 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 24min).

  • Average sunshine in January: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

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Average sunshine days in January
Martinsburg, WV

Average sunshine days in January - Martinsburg, WV
  • Average sunshine days in January: 21.7 days

The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is May (14.6 days).

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Average UV index in January
Martinsburg, WV

Average UV index in January - Martinsburg, WV
  • 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, February, November and December (UV index 2).

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Average cloud cover in January
Martinsburg, WV

Average cloud cover in January - Martinsburg, WV
  • Average cloud cover in January: 48

The months with the most cloud cover are January, March and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in January
Martinsburg, WV

Average visibility in January - Martinsburg, WV
  • Average visibility in January: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, November and December (6mi).
The months with the lowest visibility are May, September and October (5mi).

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Martinsburg, West Virginia, USA

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