January weather forecast
Round Hill, VA

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Weather in January

January, like December, in Round Hill, Virginia, is a wintry winter month, with an average temperature ranging between min 24.8°F (-4°C) and max 38.7°F (3.7°C).

Temperature

Round Hill's temperature records reveal January as the coldest month, marked by average highs of 38.7°F (3.7°C) and lows of 24.8°F (-4°C).

Humidity

The average relative humidity in January is 75%.

Rainfall

In Round Hill, during January, the rain falls for 10.1 days and regularly aggregates up to 2.13" (54mm) of precipitation. Throughout the year, there are 162.2 rainfall days, and 31.1" (790mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. The month with the most snowfall is January, when snow falls for 6.8 days and typically aggregates up to 4.17" (106mm) of snow.

Daylight

The average length of the day in January is 9h and 47min.
On the first day of the month, sunrise is at 7:30 am and sunset at 4:58 pm. On the last day of January, sunrise is at 7:18 am and sunset at 5:30 pm EST.

Sunshine

The months with the least sunshine are January and December, with an average of 5.1h of sunshine.

UV index

January, February, November 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 daily high UV index of 2 in January translates into this advice:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Updated: Jul 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

The coldest time of the year is January, with temperatures averaging a high of 38.7°F (3.7°C) and a low of 24.8°F (-4°C).

Is January cold?

In Round Hill, in January, the average high-temperature is 38.7°F (3.7°C), and the average low-temperature is 24.8°F (-4°C).

What is the average humidity in January?

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

How many days does it rain in January?

In January, the rain falls for 10.1 days. Throughout January, 2.13" (54mm) of precipitation is accumulated.

When does it snow the most?

January is the month with the most snowfall in Round Hill, Virginia. Snow falls for 6.8 days and accumulates 4.17" (106mm) of snow.

How many days does it snow in January?

In January, it is snowing for 6.8 days. Throughout January, 4.17" (106mm) of snow is accumulated.

What is the average length of the day in January in Round Hill?

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

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 7:30 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:30 pm EST.

What are the months with the least sunshine?

The months with the least sunshine are January and December, with an average of 5.1h of sunshine.

How long on average sun shines in January?

The average sunshine duration in January is 5.1h.

When is the lowest UV index in Round Hill?

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

How high is the UV index in January?

In Round Hill, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Round Hill, VA

Average temperature in January - Round Hill, VA
  • Average high temperature in January: 38.7°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 (38.7°F).

  • Average low temperature in January: 24.8°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

Average pressure in January
Round Hill, VA

Average pressure in January - Round Hill, 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).

Average wind speed in January
Round Hill, VA

Average wind speed in January - Round Hill, VA
  • Average wind speed in January: 7.1mph

The windiest month (with the highest average wind speed) is March (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in January
Round Hill, VA

Average humidity in January - Round Hill, VA
  • Average humidity in January: 75%

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

Average rainfall in January
Round Hill, VA

Average rainfall in January - Round Hill, VA
  • Average rainfall in January: 2.13"

The wettest months (with the highest rainfall) are May and August (3.35").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in January
Round Hill, VA

Average rainfall days in January - Round Hill, VA
  • Average rainfall days in January: 10.1 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (10.1 days).

Average snowfall in January
Round Hill, VA

Average snowfall in January - Round Hill, VA
  • Average snowfall in January: 4.17"

The month with the highest snowfall is January (4.17").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Round Hill, VA

Average snowfall days in January - Round Hill, VA
  • Average snowfall days in January: 6.8 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Round Hill, VA

Average daylight in January / Average sunshine in January - Round Hill, VA
  • 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).

Average sunshine days in January
Round Hill, VA

Average sunshine days in January - Round Hill, VA
  • Average sunshine days in January: 15.7 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (11.1 days).

Average UV index in January
Round Hill, VA

Average UV index in January - Round Hill, 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, February, November and December (UV index 2).

Average cloud cover in January
Round Hill, VA

Average cloud cover in January - Round Hill, VA
  • Average cloud cover in January: 45

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in January
Round Hill, VA

Average visibility in January - Round Hill, VA
  • Average visibility in January: 5mi

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

Round Hill, Virginia, USA

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