January weather forecast
Grimes, VA

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Weather in January

January, the same as December, is another cold winter month in Grimes, Virginia, with an average temperature ranging between max 37.9°F (3.3°C) and min 23.5°F (-4.7°C).

Temperature

Temperature readings reach their annual highs in January, averaging 37.9°F (3.3°C) and a minimum average of 23.5°F (-4.7°C).

Humidity

In January, the average relative humidity is 75%.

Rainfall

January is the month with the least rainfall in Grimes, Virginia. Rain falls for 9.9 days and accumulates 1.97" (50mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Grimes, in January, during 8.7 snowfall days, 4.17" (106mm) of snow is typically accumulated. Throughout the year, there are 26.2 snowfall days, and 17.83" (453mm) of snow is accumulated.

Daylight

In Grimes, the average length of the day in January is 9h and 47min.
On the first day of January, sunrise is at 7:32 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:31 pm EST.

Sunshine

With an average of 5.1h of sunshine, January has the least sunshine of the year.

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 of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 2 in January translates into this advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Updated: Jun 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

January, marked by an average high-temperature of 37.9°F (3.3°C) and a low-temperature of 23.5°F (-4.7°C), is the coldest month.

Is January cold?

An average high-temperature, in January, in Grimes, is 37.9°F (3.3°C) and the average low-temperature is 23.5°F (-4.7°C).

What is the average humidity in January?

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

What is the driest month in Grimes?

January is the month with the least rainfall. Rain falls for 9.9 days and accumulates 1.97" (50mm) of precipitation.

How many days does it rain in January?

In Grimes, in January, it is raining for 9.9 days, with typically 1.97" (50mm) of accumulated precipitation.

How much does it snow in January?

In January, it is snowing for 8.7 days. Throughout January, 4.17" (106mm) of snow is accumulated.

How many hours of daylight does Grimes have in January?

In Grimes, 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 7:32 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:31 pm EST.

What is the month with the least sunshine?

The month with the least sunshine is January, 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.

What are the months with the lowest UV index?

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

What is the UV index reading in January?

The average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a low health threat 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
Grimes, VA

Average temperature in January - Grimes, VA
  • Average high temperature in January: 37.9°F

The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (37.9°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).

Average pressure in January
Grimes, VA

Average pressure in January - Grimes, 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
Grimes, VA

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

The windiest month (with the highest average wind speed) is March (7mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

Average humidity in January
Grimes, VA

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

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

Average rainfall in January
Grimes, VA

Average rainfall in January - Grimes, VA
  • Average rainfall in January: 1.97"

The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is January (1.97").

Average rainfall days in January
Grimes, VA

Average rainfall days in January - Grimes, VA
  • Average rainfall days in January: 9.9 days

The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is November (9.4 days).

Average snowfall in January
Grimes, VA

Average snowfall in January - Grimes, VA
  • Average snowfall in January: 4.17"

The month with the highest snowfall is February (4.45").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Grimes, VA

Average snowfall days in January - Grimes, VA
  • Average snowfall days in January: 8.7 days

The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Grimes, VA

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

Average sunshine days in January
Grimes, VA

Average sunshine days in January - Grimes, VA
  • Average sunshine days in January: 15 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (10 days).

Average UV index in January
Grimes, VA

Average UV index in January - Grimes, 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
Grimes, VA

Average cloud cover in January - Grimes, VA
  • Average cloud cover in January: 45

The months with the most cloud cover are February, March and December (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in January
Grimes, VA

Average visibility in January - Grimes, VA
  • Average visibility in January: 5mi

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

Grimes, Virginia, USA

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