January weather forecast
Martinsburg, MO

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Weather in January

January, the same as December, is a wintry winter month in Martinsburg, Missouri, with an average temperature fluctuating between 22.5°F (-5.3°C) and 36.1°F (2.3°C).

Temperature

January, with its high-temperature average of 36.1°F (2.3°C) and a low-temperature average of 22.5°F (-5.3°C), is the coldest month.

Humidity

In January, the average relative humidity is 76%.

Rainfall

The months with the least rainfall in Martinsburg, Missouri, are January and February Rain falls for 6.7 days and accumulates 1.46" (37mm) of rain.

Snowfall

Months with snowfall in Martinsburg are January through April, November and December. January is the month with the most snowfall in Martinsburg, Missouri. Snow falls for 5.7 days and accumulates 3.11" (79mm) of snow.

Daylight

In January, the average length of the day in Martinsburg is 9h and 47min.
On the first day of the month, sunrise is at 7:25 am and sunset at 4:54 pm. On the last day of January, in Martinsburg, sunrise is at 7:14 am and sunset at 5:25 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 4.4h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Martinsburg. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: An average UV index of 2 in January transforms into this advice:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
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Frequently asked questions

What is the coldest month in Martinsburg?

The coldest period is January, when temperatures fluctuate between an average high of 36.1°F (2.3°C) and a low of 22.5°F (-5.3°C).

How cold is January in Martinsburg?

Martinsburg in January has an average high-temperature of 36.1°F (2.3°C) and an average low-temperature of 22.5°F (-5.3°C).

What is the average humidity in January in Martinsburg?

In January, the average relative humidity in Martinsburg, Missouri, is 76%.

What is the driest month in Martinsburg?

January and February are months with the least rain in Martinsburg when the rain falls for 6.7 days and typically aggregates up to 1.46" (37mm) of rain.

How much does it rain in Martinsburg in January?

In Martinsburg, during January, the rain falls for 6.7 days and regularly aggregates up to 1.46" (37mm) of precipitation.

What is the snowiest month in Martinsburg?

The month with the most snowfall is January, when snow falls for 5.7 days and typically aggregates up to 3.11" (79mm) of snow.

How many days does it snow in January in Martinsburg?

In Martinsburg, Missouri, during January, snow falls for 5.7 days and regularly aggregates up to 3.11" (79mm) of snow.

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

In January, the average day length is 9h and 47min.

When is the sunrise / sunset in January in Martinsburg?

In January, on the first day of the month, sunrise is at 7:25 am and sunset at 4:54 pm. On the last day of the month, in Martinsburg, sunrise is at 7:14 am and sunset at 5:25 pm CST.

What is the month with the least sunshine in Martinsburg?

With an average of 4.4h of sunshine, January has the least sunshine of the year.

How long on average sun shines in January in Martinsburg?

In January, the average sunshine duration in Martinsburg is 4.4h.

When is 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.

What is the UV index reading in January in Martinsburg?

In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
41°F 5°C
36.1°F 2.3°C
40.6°F 4.8°C
Average low temperature
28.4°F -2°C
22.5°F -5.3°C
26.2°F -3.2°C
Average pressure
30.13" 765mmHg
30.16" 766mmHg
30.12" 765mmHg
Average wind speed
9mph 14.5km/h
9.3mph 15km/h
9.3mph 15km/h
Average max. wind speed
9.6mph 15.4km/h
9.9mph 15.9km/h
9.9mph 15.9km/h
Average wind speed gusts
14.5mph 23.3km/h
14.9mph 24km/h
14.6mph 23.5km/h
Average humidity
77%
76%
76%
Average rainfall
1.73" 44mm
1.46" 37mm
1.46" 37mm
Average rainfall days
6.5
6.7
6.8
Average snowfall
1.54" 39mm
3.11" 79mm
2.68" 68mm
Average snowfall days
4
5.7
5.9
Average daylight
9h 3min
9h 5min
10h 5min
Average sunshine
4h 5min
4h 2min
4h 3min
Average sunshine days
20
19.3
15.7
Average UV index
2
2
2
Average cloud cover
49%
52%
51%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Martinsburg, MO

Average temperature in January - Martinsburg, MO
  • Average high temperature in January: 36.1°F

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in January: 22.5°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

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Average pressure in January
Martinsburg, MO

Average pressure in January - Martinsburg, MO
  • Average pressure in January: 30.16"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in January
Martinsburg, MO

Average wind speed in January - Martinsburg, MO
  • Average wind speed in January: 9.3mph

The windiest months (with the highest average wind speed) are January and February (9.3mph).
The calmest month (with the lowest average wind speed) is July (6mph).

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Average humidity in January
Martinsburg, MO

Average humidity in January - Martinsburg, MO
  • Average humidity in January: 76%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in January
Martinsburg, MO

Average rainfall in January - Martinsburg, MO
  • Average rainfall in January: 1.46"

The wettest month (with the highest rainfall) is May (3.39").
The driest months (with the least rainfall) are January and February (1.46").

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Average rainfall days in January
Martinsburg, MO

Average rainfall days in January - Martinsburg, MO
  • Average rainfall days in January: 6.7 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is December (6.5 days).

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Average snowfall in January
Martinsburg, MO

Average snowfall in January - Martinsburg, MO
  • Average snowfall in January: 3.11"

The month with the highest snowfall is January (3.11").
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, MO

Average snowfall days in January - Martinsburg, MO
  • Average snowfall days in January: 5.7 days

The month with the highest number of snowfall days is February (5.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Martinsburg, MO

Average daylight in January / Average sunshine in January - Martinsburg, MO
  • 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: 4h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days in January
Martinsburg, MO

Average sunshine days in January - Martinsburg, MO
  • Average sunshine days in January: 19.3 days

The month with the most sunshine days is December (20 days).
The month with the least sunshine days is May (12.2 days).

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Average UV index in January
Martinsburg, MO

Average UV index in January - Martinsburg, MO
  • Average UV index in January: 2

The months with the highest UV index are 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, MO

Average cloud cover in January - Martinsburg, MO
  • Average cloud cover in January: 52

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in January
Martinsburg, MO

Average visibility in January - Martinsburg, MO
  • 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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Martinsburg, Missouri, USA

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