January weather forecast
Twin Mountain, NH

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Weather in January

January, like December, is a freezing cold winter month in Twin Mountain, New Hampshire, with an average temperature fluctuating between 21.9°F (-5.6°C) and 8.6°F (-13°C).

Temperature

With average temperatures fluctuating between a high of 21.9°F (-5.6°C) and a low of 8.6°F (-13°C), January stands out as the coldest month.

Humidity

In January, the average relative humidity in Twin Mountain, New Hampshire, is 89%.

Rainfall

In January, the rain falls for 5.8 days. Throughout January, 2.83" (72mm) of precipitation is accumulated. Throughout the year, in Twin Mountain, there are 152.5 rainfall days, and 34.72" (882mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Twin Mountain, in January, snow falls for 22.1 days, with typically accumulated 16.97" (431mm) of snow. In Twin Mountain, New Hampshire, during the entire year, snow falls for 120.8 days and aggregates up to 97.17" (2468mm) of snow.

Daylight

In Twin Mountain, New Hampshire, the average length of the day in January is 9h and 19min.
On the first day of January, sunrise is at 7:21 am and sunset at 4:17 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 4:53 pm EST.

Sunshine

In January, the average sunshine is 2.8h.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In January, the UV index of 1 transforms into the following advice:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month in Twin Mountain?

Twin Mountain's coldest temperatures are experienced in January, with average high temperatures of 21.9°F (-5.6°C) and lows of 8.6°F (-13°C).

How cold is January in Twin Mountain?

The high-temperature, in January, in Twin Mountain, records 21.9°F (-5.6°C), while the low-temperature is 8.6°F (-13°C).

What is the average humidity in January in Twin Mountain?

The average relative humidity in January is 89%.

How many days does it rain in January in Twin Mountain?

In January, the rain falls for 5.8 days. Throughout January, 2.83" (72mm) of precipitation is accumulated.

How much does it snow in Twin Mountain in January?

In Twin Mountain, New Hampshire, in January, during 22.1 snowfall days, 16.97" (431mm) of snow is typically accumulated.

How many hours of daylight does Twin Mountain have in January?

In Twin Mountain, New Hampshire, the average day length in January is 9h and 19min.

When are sunrise and sunset in January in Twin Mountain?

On the first day of January in Twin Mountain, New Hampshire, sunrise is at 7:21 am and sunset at 4:17 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 4:53 pm EST.

How many hours of sunshine does Twin Mountain have in January?

The average sunshine duration in January is 2.8h.

What are the months with the lowest UV index in Twin Mountain?

The months with the lowest UV index in Twin Mountain, New Hampshire, are January, February and December, with an average maximum UV index of 1.

What is the UV index reading in January in Twin Mountain?

In Twin Mountain, the average daily maximum UV index in January is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe 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
Twin Mountain, NH

Average temperature in January - Twin Mountain, NH
  • Average high temperature in January: 21.9°F

The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is January (21.9°F).

  • Average low temperature in January: 8.6°F

The month with the highest average low temperature is July (54.1°F).
The coldest month (with the lowest average low temperature) is January (8.6°F).

Average pressure in January
Twin Mountain, NH

Average pressure in January - Twin Mountain, NH
  • Average pressure in January: 30"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
Twin Mountain, NH

Average wind speed in January - Twin Mountain, NH
  • Average wind speed in January: 6.9mph

The windiest months (with the highest average wind speed) are January and February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

Average humidity in January
Twin Mountain, NH

Average humidity in January - Twin Mountain, NH
  • Average humidity in January: 89%

The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (77%).

Average rainfall in January
Twin Mountain, NH

Average rainfall in January - Twin Mountain, NH
  • Average rainfall in January: 2.83"

The wettest month (with the highest rainfall) is October (3.62").
The driest month (with the least rainfall) is September (2.24").

Average rainfall days in January
Twin Mountain, NH

Average rainfall days in January - Twin Mountain, NH
  • Average rainfall days in January: 5.8 days

The month with the highest number of rainy days is July (19.1 days).
The month with the least rainy days is February (5.2 days).

Average snowfall in January
Twin Mountain, NH

Average snowfall in January - Twin Mountain, NH
  • Average snowfall in January: 16.97"

The month with the highest snowfall is February (17.44").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Twin Mountain, NH

Average snowfall days in January - Twin Mountain, NH
  • Average snowfall days in January: 22.1 days

The month with the highest number of snowfall days is January (22.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Twin Mountain, NH

Average daylight in January / Average sunshine in January - Twin Mountain, NH
  • 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 18min).
The month with the least sunshine is February (Average sunshine: 2h and 42min).

Average sunshine days in January
Twin Mountain, NH

Average sunshine days in January - Twin Mountain, NH
  • Average sunshine days in January: 8.8 days

The month with the most sunshine days is September (14.1 days).
The month with the least sunshine days is February (5.8 days).

Average UV index in January
Twin Mountain, NH

Average UV index in January - Twin Mountain, NH
  • 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
Twin Mountain, NH

Average cloud cover in January - Twin Mountain, NH
  • Average cloud cover in January: 73

The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 43).

Average visibility in January
Twin Mountain, NH

Average visibility in January - Twin Mountain, NH
  • Average visibility in January: 4mi

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

Twin Mountain, New Hampshire, USA

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