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
Temperature records mark January as the coldest month, with highs averaging 41.7°F (5.4°C) and lows at 27.5°F (-2.5°C).Humidity
In Williamsburg, the average relative humidity in January is 79%.Rainfall
In Williamsburg, in January, during 12.8 rainfall days, 3.19" (81mm) of precipitation is typically accumulated. Throughout the year, there are 184.3 rainfall days, and 39.33" (999mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Williamsburg, during January, snow falls for 9.1 days and regularly aggregates up to 2.91" (74mm) of snow. In Williamsburg, during the entire year, snow falls for 30.8 days and aggregates up to 13.19" (335mm) of snow.Daylight
In Williamsburg, the average length of the day in January is 9h and 59min.On the first day of the month, sunrise is at 7:49 am and sunset at 5:31 pm. On the last day of January, in Williamsburg, sunrise is at 7:39 am and sunset at 6:00 pm EST.
Sunshine
January has the least sunshine of the year, with an average of 4.3h of sunshine.UV index
The months with the lowest UV index are January, February 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: The daily high UV index of 2 in January translates into this advice:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
Is January cold in Williamsburg?
What is the average humidity in January?
How many days does it rain in January?
How much does it snow in January?
How many hours of daylight does Williamsburg have in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Williamsburg have in January?
What are the months with the lowest UV index in Williamsburg?
What is the UV index reading in January?
Average temperature in January
Williamsburg, KY
- Average high temperature in January: 41.7°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (41.7°F).
- Average low temperature in January: 27.5°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).
Average pressure in January
Williamsburg, KY
- Average pressure in January: 30.16"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in January
Williamsburg, KY
- Average wind speed in January: 6.4mph
The windiest months (with the highest average wind speed) are February and April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in January
Williamsburg, KY
- Average humidity in January: 79%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (76%).
Average rainfall in January
Williamsburg, KY
- Average rainfall in January: 3.19"
The wettest month (with the highest rainfall) is February (4.37").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in January
Williamsburg, KY
- Average rainfall days in January: 12.8 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (11.3 days).
Average snowfall in January
Williamsburg, KY
- Average snowfall in January: 2.91"
The month with the highest snowfall is February (4.06").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Williamsburg, KY
- Average snowfall days in January: 9.1 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Williamsburg, KY
- Average daylight in January: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January: 4h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in January
Williamsburg, KY
- Average sunshine days in January: 12.2 days
The month with the most sunshine days is October (15.8 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in January
Williamsburg, KY
- 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
Williamsburg, KY
- Average cloud cover in January: 56
The month with the most cloud cover is February (Cloud cover 57).
The months with the least cloud cover are June and August (Cloud cover 32).
Average visibility in January
Williamsburg, KY
- Average visibility in January: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Williamsburg, Kentucky, USA
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