January weather forecast
Williamstown, VT

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Weather in January

January, the same as December, in Williamstown, Vermont, is a freezing cold winter month, with an average temperature ranging between min 10.8°F (-11.8°C) and max 23.2°F (-4.9°C).

Temperature

Williamstown's temperature records reveal January as the coldest month, marked by average highs of 23.2°F (-4.9°C) and lows of 10.8°F (-11.8°C).

Humidity

January and February, with an average relative humidity of 89%, are the most humid months.

Rainfall

In Williamstown, Vermont, during January, the rain falls for 6.8 days and regularly aggregates up to 2.2" (56mm) of precipitation. In Williamstown, during the entire year, the rain falls for 166.6 days and collects up to 32.01" (813mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In January, in Williamstown, it is snowing for 22.3 days. Throughout January, 11.57" (294mm) of snow is accumulated. In Williamstown, during the entire year, snow falls for 107.7 days and aggregates up to 58.82" (1494mm) of snow.

Daylight

The average length of the day in January is 9h and 20min.
On the first day of the month, sunrise is at 7:25 am and sunset at 4:22 pm. On the last day of January, sunrise is at 7:09 am and sunset at 4:58 pm EST.

Sunshine

January and February, with an average of 2.7h of sunshine, are months with the least sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In January, an average UV index of 1 transforms into the following instructions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Enhance your sun protection with tightly woven, yet airy clothing. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.

Frequently asked questions

What month is the coldest?

January is the coldest month, with the temperature often reaching an average high of 23.2°F (-4.9°C) and an average low of 10.8°F (-11.8°C).

How cold is it in January?

The high-temperature, in January, in Williamstown, records 23.2°F (-4.9°C), while the low-temperature is 10.8°F (-11.8°C).

What is the most humid month?

The months with the highest humidity are January and February, with an average relative humidity of 89%.

What is the average humidity in January?

In Williamstown, the average relative humidity in January is 89%.

How much does it rain in Williamstown in January?

In Williamstown, in January, during 6.8 rainfall days, 2.2" (56mm) of precipitation is typically accumulated.

How much does it snow in January?

In January, it is snowing for 22.3 days. Throughout January, 11.57" (294mm) of snow is accumulated.

How many hours of daylight does Williamstown have in January?

In January, the average day length is 9h and 20min.

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 7:25 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 4:58 pm EST.

What are the months with the least sunshine?

The months with the least sunshine are January and February, with an average of 2.7h of sunshine.

How long on average sun shines in January?

The average sunshine duration in January is 2.7h.

When is the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1.

What is the UV index reading in January?

In Williamstown, Vermont, the average daily maximum UV index in January is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Williamstown, VT

Average temperature in January - Williamstown, VT
  • Average high temperature in January: 23.2°F

The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (23.2°F).

  • Average low temperature in January: 10.8°F

The month with the highest average low temperature is July (55.2°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

Average pressure in January
Williamstown, VT

Average pressure in January - Williamstown, VT
  • Average pressure in January: 30.02"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in January
Williamstown, VT

Average wind speed in January - Williamstown, VT
  • Average wind speed in January: 7mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in January
Williamstown, VT

Average humidity in January - Williamstown, VT
  • Average humidity in January: 89%

The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (76%).

Average rainfall in January
Williamstown, VT

Average rainfall in January - Williamstown, VT
  • Average rainfall in January: 2.2"

The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is September (2.09").

Average rainfall days in January
Williamstown, VT

Average rainfall days in January - Williamstown, VT
  • Average rainfall days in January: 6.8 days

The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is January (6.8 days).

Average snowfall in January
Williamstown, VT

Average snowfall in January - Williamstown, VT
  • Average snowfall in January: 11.57"

The month with the highest snowfall is February (13.31").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Williamstown, VT

Average snowfall days in January - Williamstown, VT
  • Average snowfall days in January: 22.3 days

The month with the highest number of snowfall days is January (22.3 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, VT

Average daylight in January / Average sunshine in January - Williamstown, VT
  • Average daylight in January: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in January: 2h and 4min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January and February (Average sunshine: 2h and 42min).

Average sunshine days in January
Williamstown, VT

Average sunshine days in January - Williamstown, VT
  • Average sunshine days in January: 7.5 days

The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is February (5.5 days).

Average UV index in January
Williamstown, VT

Average UV index in January - Williamstown, VT
  • Average UV index in January: 1

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in January
Williamstown, VT

Average cloud cover in January - Williamstown, VT
  • Average cloud cover in January: 74

The months with the most cloud cover are January and February (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 39).

Average visibility in January
Williamstown, VT

Average visibility in January - Williamstown, VT
  • Average visibility in January: 4mi

The months with the highest visibility are April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March and December (4mi).

Williamstown, Vermont, USA

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