January weather forecast
Groton, VT

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Weather in January

January, like December, is a freezing cold winter month in Groton, Vermont, with temperature in the range of an average low of 9.7°F (-12.4°C) and an average high of 22.8°F (-5.1°C).

Temperature

January proves to be the coldest month, recording an average maximum temperature of 22.8°F (-5.1°C) and a minimum temperature of 9.7°F (-12.4°C).

Humidity

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

Rainfall

In Groton, Vermont, in January, during 6.1 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, there are 157.2 rainfall days, and 28.35" (720mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 20.5 days and accumulates 12.44" (316mm) of snow.

Daylight

In Groton, the average length of the day in January is 9h and 19min.
On the first day of January, sunrise is at 7:24 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 4:56 pm EST.

Sunshine

In January, the average sunshine is 2.9h.

UV index

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 1 in January translates into this advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Around midday, solar radiation is most harmful; hence, exposure should be limited. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

The coldest temperatures occur during January, when averages reach a peak of 22.8°F (-5.1°C) and a low of 9.7°F (-12.4°C).

How cold is it in January?

The average high-temperature, in January, in Groton, is 22.8°F (-5.1°C), while the average low-temperature is 9.7°F (-12.4°C).

What are the most humid months?

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

What is the average humidity in January?

In January, the average relative humidity is 89%.

How much does it rain in January?

In January, the rain falls for 6.1 days. Throughout January, 2.32" (59mm) of precipitation is accumulated.

What is the snowiest month?

The month with the most snowfall is January, when snow falls for 20.5 days and typically aggregates up to 12.44" (316mm) of snow.

How much does it snow in Groton in January?

In Groton, in January, snow falls for 20.5 days, with typically accumulated 12.44" (316mm) of snow.

What is the average length of the day in January?

The average day length in January is 9h and 19min.

What time are sunrise and sunset in January?

On the first day of January, sunrise is at 7:24 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 4:56 pm EST.

How many hours of sunshine does Groton have in January?

In Groton, the average sunshine duration in January is 2.9h.

What is the month with the lowest UV index?

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

What is the UV index reading in January?

The average daily maximum UV index in January is 1. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation.
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
Groton, VT

Average temperature in January - Groton, VT
  • Average high temperature in January: 22.8°F

The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (22.8°F).

  • Average low temperature in January: 9.7°F

The month with the highest average low temperature is July (54.5°F).
The coldest month (with the lowest average low temperature) is January (9.7°F).

Average pressure in January
Groton, VT

Average pressure in January - Groton, VT
  • Average pressure in January: 30.01"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in January
Groton, VT

Average wind speed in January - Groton, VT
  • Average wind speed in January: 6.3mph

The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in January
Groton, VT

Average humidity in January - Groton, 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
Groton, VT

Average rainfall in January - Groton, VT
  • Average rainfall in January: 2.32"

The wettest months (with the highest rainfall) are June and October (2.87").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in January
Groton, VT

Average rainfall days in January - Groton, VT
  • Average rainfall days in January: 6.1 days

The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is January (6.1 days).

Average snowfall in January
Groton, VT

Average snowfall in January - Groton, VT
  • Average snowfall in January: 12.44"

The month with the highest snowfall is January (12.44").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Groton, VT

Average snowfall days in January - Groton, VT
  • Average snowfall days in January: 20.5 days

The month with the highest number of snowfall days is February (20.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Groton, VT

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

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in January: 2h and 5min

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

Average sunshine days in January
Groton, VT

Average sunshine days in January - Groton, VT
  • Average sunshine days in January: 8.3 days

The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is February (6.6 days).

Average UV index in January
Groton, VT

Average UV index in January - Groton, 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 and December (UV index 1).

Average cloud cover in January
Groton, VT

Average cloud cover in January - Groton, VT
  • Average cloud cover in January: 71

The month with the most cloud cover is February (Cloud cover 73).
The months with the least cloud cover are July and August (Cloud cover 39).

Average visibility in January
Groton, VT

Average visibility in January - Groton, 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).

Groton, Vermont, USA

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