Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January is the coldest month, exhibiting average temperatures of 40.6°F (4.8°C) at the peak and 27°F (-2.8°C) at the base.Humidity
In Lorton, Virginia, the average relative humidity in January is 73%.Rainfall
The month with the least rainfall is January, when the rain falls for 8.3 days and typically collects 1.73" (44mm) of precipitation.Snowfall
January through April and December are months with snowfall. The month with the most snowfall in Lorton is January, when snow falls for 3.8 days and typically aggregates up to 3.23" (82mm) of snow.Daylight
In January, the average length of the day is 9h and 50min.On the first day of January in Lorton, sunrise is at 7:26 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:28 pm EST.
Sunshine
In Lorton, the average sunshine in January is 5.3h.UV index
The months with the lowest UV index in Lorton are January, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: A maximum daily UV index of 2 during January morphs into the following directions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
What are the coldest months in Lorton?
How cold is January in Lorton?
What is the average humidity in January in Lorton?
What is the driest month in Lorton?
How much does it rain in Lorton in January?
What is the snowiest month in Lorton?
How many days does it snow in January in Lorton?
What is the average length of the day in January in Lorton?
What time are sunrise and sunset in January in Lorton?
How many hours of sunshine does Lorton have in January?
What is the month with the lowest UV index in Lorton?
How high is the UV index in January in Lorton?
Average temperature in January
Lorton, VA
- Average high temperature in January: 40.6°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in January: 27°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in January
Lorton, 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
Lorton, VA
- Average wind speed in January: 6.8mph
The windiest month (with the highest average wind speed) is March (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in January
Lorton, VA
- Average humidity in January: 73%
The months with the highest relative humidity are October and December (77%).
The month with the lowest relative humidity is July (71%).
Average rainfall in January
Lorton, VA
- Average rainfall in January: 1.73"
The wettest month (with the highest rainfall) is August (3.98").
The driest month (with the least rainfall) is January (1.73").
Average rainfall days in January
Lorton, VA
- Average rainfall days in January: 8.3 days
The months with the highest number of rainy days are May and August (17.8 days).
The month with the least rainy days is November (7.7 days).
Average snowfall in January
Lorton, VA
- Average snowfall in January: 3.23"
The month with the highest snowfall is January (3.23").
The months with the least snowfall are May, June, July, August, September, October and November (0").
Average snowfall days in January
Lorton, VA
- Average snowfall days in January: 3.8 days
The month with the highest number of snowfall days is February (4.1 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
Lorton, VA
- Average daylight in January: 9h and 5min
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 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 5h and 12min).
Average sunshine days in January
Lorton, VA
- Average sunshine days in January: 18.9 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is August (10.4 days).
Average UV index in January
Lorton, 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, November and December (UV index 2).
Average cloud cover in January
Lorton, 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 31).
Average visibility in January
Lorton, 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).
Lorton, Virginia, USA
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