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, marked by an average high-temperature of 37°F (2.8°C) and a low-temperature of 24.6°F (-4.1°C), is the coldest month.Humidity
In January, the average relative humidity in Williamstown, Kentucky, is 79%.Rainfall
In Williamstown, in January, during 10.8 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. In Williamstown, Kentucky, during the entire year, the rain falls for 169.6 days and collects up to 36.02" (915mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Williamstown, during January, snow falls for 10.3 days and regularly aggregates up to 2.8" (71mm) of snow. Throughout the year, there are 37 snowfall days, and 12.87" (327mm) of snow is accumulated.Daylight
In Williamstown, the average length of the day in January is 9h and 50min.On the first day of January in Williamstown, sunrise is at 7:55 am and sunset at 5:27 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:58 pm EST.
Sunshine
January has the least sunshine of the year, with an average of 4h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 2 in January translates into the following instructions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
What month is the coldest in Williamstown?
How cold is January in Williamstown?
What is the average humidity in January in Williamstown?
How much does it rain in Williamstown in January?
How much does it snow in Williamstown in January?
What is the average length of the day in January in Williamstown?
What time are sunrise and sunset in January in Williamstown?
What is the month with the least sunshine in Williamstown?
How many hours of sunshine does Williamstown have in January?
What are the months with the lowest UV index in Williamstown?
How high is the UV index in January in Williamstown?
Average temperature in January
Williamstown, KY
- Average high temperature in January: 37°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in January: 24.6°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in January
Williamstown, KY
- Average pressure in January: 30.15"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in January
Williamstown, KY
- Average wind speed in January: 8.6mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in January
Williamstown, 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 (74%).
Average rainfall in January
Williamstown, KY
- Average rainfall in January: 2.52"
The wettest month (with the highest rainfall) is April (3.82").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in January
Williamstown, KY
- Average rainfall days in January: 10.8 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is November (10.6 days).
Average snowfall in January
Williamstown, KY
- Average snowfall in January: 2.8"
The month with the highest snowfall is February (3.35").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Williamstown, KY
- Average snowfall days in January: 10.3 days
The month with the highest number of snowfall days is January (10.3 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
Williamstown, KY
- 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: 4h and 0min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in January
Williamstown, KY
- Average sunshine days in January: 12.4 days
The month with the most sunshine days is October (17 days).
The month with the least sunshine days is February (10.5 days).
Average UV index in January
Williamstown, KY
- Average UV index in January: 2
The months with the highest UV index are 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
Williamstown, KY
- Average cloud cover in January: 59
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in January
Williamstown, KY
- Average visibility in January: 5mi
The months with the highest visibility are March, April, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, May, July and December (5mi).
Williamstown, Kentucky, USA
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