January weather forecast
Mountcastle, VA

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Weather in January

January, like December, is another chilly winter month in Mountcastle, Virginia, with an average temperature ranging between max 45.1°F (7.3°C) and min 30.2°F (-1°C).

Temperature

Mountcastle records the coldest temperatures in January, averaging a high of 45.1°F (7.3°C) and a low of 30.2°F (-1°C).

Humidity

The average relative humidity in January in Mountcastle is 75%.

Rainfall

In Mountcastle, in January, during 10.2 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. In Mountcastle, during the entire year, the rain falls for 166.1 days and collects up to 33.27" (845mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Mountcastle, Virginia. In Mountcastle, in January, during 3.2 snowfall days, 1.42" (36mm) of snow is typically accumulated. In Mountcastle, during the entire year, snow falls for 10.3 days and aggregates up to 5.71" (145mm) of snow.

Daylight

In Mountcastle, Virginia, the average length of the day in January is 9h and 56min.
On the first day of the month, sunrise is at 7:22 am and sunset at 5:00 pm. On the last day of January, sunrise is at 7:12 am and sunset at 5:30 pm EST.

Sunshine

The average sunshine in January in Mountcastle, Virginia, is 5.5h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: The UV index of 2 in January translates into these instructions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Experience reduced UV exposure by about half when donning a wide-brim hat. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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Frequently asked questions

What month is the coldest in Mountcastle?

January, known for its average high temperature of 45.1°F (7.3°C) and an average low temperature of 30.2°F (-1°C), is the coldest month in Mountcastle.

What is the average January temperature in Mountcastle?

During January, Mountcastle experiences an average high-temperature of 45.1°F (7.3°C) and a low-temperature of 30.2°F (-1°C).

What is the average humidity in January in Mountcastle?

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

How many days does it rain in January in Mountcastle?

In Mountcastle, Virginia, during January, the rain falls for 10.2 days and regularly aggregates up to 2.6" (66mm) of precipitation.

How much does it snow in Mountcastle in January?

In Mountcastle, Virginia, in January, snow falls for 3.2 days, with typically accumulated 1.42" (36mm) of snow.

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

In January, the average day length in Mountcastle, Virginia, is 9h and 56min.

When is the sunrise / sunset in January in Mountcastle?

On the first day of January in Mountcastle, Virginia, sunrise is at 7:22 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:30 pm EST.

How long on average sun shines in January in Mountcastle?

The average sunshine duration in January in Mountcastle, Virginia, is 5.5h.

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

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

How high is the UV index in January in Mountcastle?

The average daily maximum UV index in January in Mountcastle is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from exposure to the Sun's UV radiation.
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
Mountcastle, VA

Average temperature in January - Mountcastle, VA
  • Average high temperature in January: 45.1°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in January: 30.2°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

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Average pressure in January
Mountcastle, VA

Average pressure in January - Mountcastle, VA
  • 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
Mountcastle, VA

Average wind speed in January - Mountcastle, VA
  • Average wind speed in January: 6.8mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in January
Mountcastle, VA

Average humidity in January - Mountcastle, VA
  • Average humidity in January: 75%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is July (73%).

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Average rainfall in January
Mountcastle, VA

Average rainfall in January - Mountcastle, VA
  • Average rainfall in January: 2.6"

The wettest month (with the highest rainfall) is August (3.7").
The driest month (with the least rainfall) is September (2.01").

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Average rainfall days in January
Mountcastle, VA

Average rainfall days in January - Mountcastle, VA
  • Average rainfall days in January: 10.2 days

The month with the highest number of rainy days is May (18.4 days).
The months with the least rainy days are January and November (10.2 days).

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Average snowfall in January
Mountcastle, VA

Average snowfall in January - Mountcastle, VA
  • Average snowfall in January: 1.42"

The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Mountcastle, VA

Average snowfall days in January - Mountcastle, VA
  • Average snowfall days in January: 3.2 days

The month with the highest number of snowfall days is February (3.3 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
Mountcastle, VA

Average daylight in January / Average sunshine in January - Mountcastle, VA
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in January: 5h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

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Average sunshine days in January
Mountcastle, VA

Average sunshine days in January - Mountcastle, VA
  • Average sunshine days in January: 17.2 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (10.9 days).

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Average UV index in January
Mountcastle, VA

Average UV index in January - Mountcastle, VA
  • 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
Mountcastle, VA

Average cloud cover in January - Mountcastle, VA
  • Average cloud cover in January: 41

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in January
Mountcastle, VA

Average visibility in January - Mountcastle, VA
  • Average visibility in January: 6mi

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

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Mountcastle, Virginia, USA

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