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, having an average high-temperature of 31.1°F (-0.5°C) and an average low-temperature of 19.8°F (-6.8°C), is the coldest month.Humidity
January and February, with an average relative humidity of 84%, are the most humid months.Rainfall
In Williamstown, in January, during 8.4 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. Throughout the year, in Williamstown, Ohio, there are 168.7 rainfall days, and 29.72" (755mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In January, it is snowing for 13.4 days. Throughout January, 2.87" (73mm) of snow is accumulated. Throughout the year, there are 48.9 snowfall days, and 13.23" (336mm) of snow is accumulated.Daylight
In January, the average length of the day in Williamstown is 9h and 38min.On the first day of the month, sunrise is at 7:58 am and sunset at 5:17 pm. On the last day of January, in Williamstown, sunrise is at 7:45 am and sunset at 5:50 pm EST.
Sunshine
January has the least sunshine of the year in Williamstown, with an average of 3.4h of sunshine.UV index
The average daily maximum UV index in January in Williamstown is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: A daily high UV index of 2 in January leads to these guidelines:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
What part of the year is the coldest in Williamstown?
How cold is it in Williamstown in January?
What is the most humid month in Williamstown?
What is the average humidity in January in Williamstown?
How much does it rain in Williamstown in January?
How many days does it snow in January in Williamstown?
What is the average length of the day in January in Williamstown?
When is the sunrise / 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 is the UV index intensity in January in Williamstown?
Average temperature in January
Williamstown, OH
- Average high temperature in January: 31.1°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in January: 19.8°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in January
Williamstown, OH
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Williamstown, OH
- Average wind speed in January: 10.7mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in January
Williamstown, OH
- Average humidity in January: 84%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in January
Williamstown, OH
- Average rainfall in January: 2.01"
The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is December (1.81").
Average rainfall days in January
Williamstown, OH
- Average rainfall days in January: 8.4 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in January
Williamstown, OH
- Average snowfall in January: 2.87"
The month with the highest snowfall is February (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Williamstown, OH
- Average snowfall days in January: 13.4 days
The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Williamstown, OH
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January: 3h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in January
Williamstown, OH
- Average sunshine days in January: 10.7 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in January
Williamstown, OH
- Average UV index in January: 2
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in January
Williamstown, OH
- Average cloud cover in January: 65
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in January
Williamstown, OH
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, August and September (5mi).
Williamstown, Ohio, USA
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