January weather forecastPort Royal, VA
January
Weather in January
January, like December, in Port Royal, Virginia, is an icy winter month, with an average temperature fluctuating between 42.3°F (5.7°C) and 28.8°F (-1.8°C).Temperature
Port Royal, Virginia, reaches its lowest average temperatures in January, measuring 42.3°F (5.7°C) at the peak and 28.8°F (-1.8°C) at the lowest.Humidity
In January, the average relative humidity is 74%.Rainfall
In Port Royal, Virginia, in January, it is raining for 9.4 days, with typically 2.05" (52mm) of accumulated precipitation. Throughout the year, in Port Royal, Virginia, there are 158.1 rainfall days, and 30.47" (774mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Port Royal. January is the month with the most snowfall in Port Royal. Snow falls for 4 days and accumulates 1.85" (47mm) of snow.Daylight
In January, the average length of the day in Port Royal is 9h and 52min.On the first day of January, sunrise is at 7:25 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:29 pm EST.
Sunshine
In Port Royal, the average sunshine in January is 5.4h.UV index
The months with the lowest UV index in Port Royal are January, February and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In January, an average UV index of 2 transforms into the following instructions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. When the Sun is at its strongest around midday, find shade and limit exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Port Royal, VA
- Average high temperature in January: 42.3°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (42.3°F).
- Average low temperature in January: 28.8°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 (28.8°F).
Average pressure in January
Port Royal, 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
Port Royal, VA
- Average wind speed in January: 7.4mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in January
Port Royal, VA
- Average humidity in January: 74%
The months with the highest relative humidity are May and December (78%).
The month with the lowest relative humidity is April (73%).
Average rainfall in January
Port Royal, VA
- Average rainfall in January: 2.05"
The wettest months (with the highest rainfall) are July and August (3.19").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in January
Port Royal, VA
- Average rainfall days in January: 9.4 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in January
Port Royal, VA
- Average snowfall in January: 1.85"
The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Port Royal, VA
- Average snowfall days in January: 4 days
The month with the highest number of snowfall days is January (4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Port Royal, VA
- Average daylight in January: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January: 5h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).
Average sunshine days in January
Port Royal, VA
- Average sunshine days in January: 18.1 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in January
Port Royal, 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 and December (UV index 2).
Average cloud cover in January
Port Royal, VA
- Average cloud cover in January: 42
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in January
Port Royal, 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).
