January weather forecastClifton, VA
January
Weather in January
January marks the start of the year in Clifton, Virginia, frequently showcasing days covered by dense cloud layers reaching a cloud coverage percentage of 43%. With shorter daylight hours of 9.8 hours, expect a quintessential winter month where the city residents brace for chilly days and colder nights, coupled with occasional snowfall. January also introduces the new year with relative humidity standing at a considerable 73%, so the likelihood of some dampness in the air is often. In comparison to February, the initial month sees a bit less snow with indicators pointing to an average of 3.58" (91mm). Snowfall, cold temperatures, and potential frost marks a near-conclusive conclusion of the winter season.Temperature
January, marked by an average high-temperature of 40.5°F (4.7°C) and a low-temperature of 26.8°F (-2.9°C), is the coldest month.Humidity
In Clifton, the average relative humidity in January is 73%.Rainfall
The month with the least rainfall is January, when the rain falls for 10.3 days and typically collects 2.09" (53mm) of precipitation.Snowfall
Months with snowfall in Clifton are January through April, November and December. January is the month with the most snowfall. Snow falls for 5.2 days and accumulates 3.58" (91mm) of snow.Daylight
The average length of the day in January is 9h and 49min.On the first day of the month, sunrise is at 7:27 am and sunset at 4:58 pm. On the last day of January, sunrise is at 7:16 am and sunset at 5:29 pm EST.
Sunshine
January, February and December, with an average of 5.2h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index in Clifton, Virginia, are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In January, the UV index of 2 transforms into the following advice:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Clifton, VA
- Average high temperature in January: 40.5°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 (40.5°F).
- Average low temperature in January: 26.8°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 (26.8°F).
Average pressure in January
Clifton, 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
Clifton, VA
- Average wind speed in January: 7mph
The windiest month (with the highest average wind speed) is March (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in January
Clifton, 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
Clifton, VA
- Average rainfall in January: 2.09"
The wettest month (with the highest rainfall) is August (3.94").
The driest month (with the least rainfall) is January (2.09").
Average rainfall days in January
Clifton, VA
- Average rainfall days in January: 10.3 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in January
Clifton, VA
- Average snowfall in January: 3.58"
The month with the highest snowfall is January (3.58").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Clifton, VA
- Average snowfall days in January: 5.2 days
The month with the highest number of snowfall days is January (5.2 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
Clifton, 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 months with the least sunshine are January, February and December (Average sunshine: 5h and 12min).
Average sunshine days in January
Clifton, VA
- Average sunshine days in January: 16.8 days
The month with the most sunshine days is November (19.3 days).
The months with the least sunshine days are May and July (10.5 days).
Average UV index in January
Clifton, 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
Clifton, 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
Clifton, 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).
