January weather forecastAlexandria, VA
January
Weather in January
January in Alexandria is distinctly wintery, marked by the year's coldest temperatures. Compared to December, there is a slight rise in temperatures, though still in the chill range, with average highs reaching 40.6°F (4.8°C) and lows of about 27.7°F (-2.4°C). Humidity remains relatively high, contributing to a colder feel. Snow, albeit light, does occur, adding a touch of winter wonder to the city. Transitioning into February, colder weather conditions are expected to persist.Temperature
In Alexandria, Virginia, the lowest average temperatures are observed in January, with a high of 40.6°F (4.8°C) and a low of 27.7°F (-2.4°C).Humidity
In January, the average relative humidity is 72%.Rainfall
In Alexandria, in January, during 9.9 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. In Alexandria, during the entire year, the rain falls for 158.2 days and collects up to 30.67" (779mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Alexandria, Virginia. The month with the most snowfall in Alexandria is January, when snow falls for 4.5 days and typically aggregates up to 2.48" (63mm) of snow.Ocean temperature
In Alexandria, the average seawater temperature in January is 47.1°F (8.4°C).Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.
Daylight
In Alexandria, Virginia, the average length of the day in January is 9h and 49min.On the first day of January in Alexandria, sunrise is at 7:26 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:27 pm EST.
Sunshine
The average sunshine in January in Alexandria, Virginia, is 5.2h.UV index
The months with the lowest UV index in Alexandria are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 2 during January, leads to the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Alexandria, VA
- Average high temperature in January: 40.6°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in January: 27.7°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).
Average pressure in January
Alexandria, 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
Alexandria, VA
- Average wind speed in January: 7.5mph
The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in January
Alexandria, VA
- Average humidity in January: 72%
The months with the highest relative humidity are May, October and December (76%).
The months with the lowest relative humidity are April and July (71%).
Average rainfall in January
Alexandria, VA
- Average rainfall in January: 2.05"
The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in January
Alexandria, VA
- Average rainfall days in January: 9.9 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in January
Alexandria, VA
- Average snowfall in January: 2.48"
The month with the highest snowfall is January (2.48").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Alexandria, VA
- Average snowfall days in January: 4.5 days
The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in January
Alexandria, VA
- Average sea temperature in January: 47.1°F
The best month for swimming (with the highest average sea temperature) is August (78°F).
The coldest month (with the lowest average sea temperature) is February (45.2°F).
Average daylight in January /
Average sunshine in January
Alexandria, VA
- Average daylight in January: 9h and 48min
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 30min).
- Average sunshine in January: 5h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in January
Alexandria, VA
- Average sunshine days in January: 17.6 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (11.5 days).
Average UV index in January
Alexandria, 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).
Average cloud cover in January
Alexandria, VA
- Average cloud cover in January: 43
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in January
Alexandria, 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).
