January weather forecast
Jackson, NH

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Weather in January

January sees the weather in Jackson, New Hampshire attaining its coldest states. Average temperatures hardly surpass 24.3°F (-4.3°C) with a chilly low of 10.8°F (-11.8°C). The city experiences a dense cloud cover of 52% and a high relative humidity of 87%, ensuring a commonly misty landscape. Snowfall is quite common, making it an ideal period for those who enjoy winter sports. The start of the year also possesses one of the lowest quantities of daylight hours, limiting outdoor activities for residents and visitors.

Temperature

January, known for its average high temperature of 24.3°F (-4.3°C) and an average low temperature of 10.8°F (-11.8°C), is the coldest month in Jackson.

Humidity

January and February, with an average relative humidity of 87%, are the most humid months in Jackson, New Hampshire.

Rainfall

In Jackson, New Hampshire, in January, during 4.2 rainfall days, 0.91" (23mm) of precipitation is typically accumulated. Throughout the year, there are 90.5 rainfall days, and 11.61" (295mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Jackson. In Jackson, in January, during 8.3 snowfall days, 3.74" (95mm) of snow is typically accumulated. In Jackson, during the entire year, snow falls for 41.7 days and aggregates up to 19.96" (507mm) of snow.

Daylight

The average length of the day in January in Jackson is 9h and 20min.
On the first day of the month, sunrise is at 7:19 am and sunset at 4:16 pm. On the last day of January, in Jackson, sunrise is at 7:03 am and sunset at 4:52 pm EST.

Sunshine

In Jackson, the average sunshine in January is 4.6h.

UV index

The average daily maximum UV index in January in Jackson is 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.
Note: In January, the maximum UV index of 2 suggests these recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in Jackson?

January, having an average high-temperature of 24.3°F (-4.3°C) and an average low-temperature of 10.8°F (-11.8°C), is the coldest month.

How cold is it in Jackson in January?

During January, Jackson experiences an average high-temperature of 24.3°F (-4.3°C) and a low-temperature of 10.8°F (-11.8°C).

What is the most humid month in Jackson?

January and February, with an average relative humidity of 87%, are most humid months in Jackson, New Hampshire.

What is the average humidity in January in Jackson?

In January, the average relative humidity is 87%.

How much does it rain in Jackson in January?

In Jackson, in January, it is raining for 4.2 days, with typically 0.91" (23mm) of accumulated precipitation.

How much does it snow in Jackson in January?

In Jackson, during January, snow falls for 8.3 days and regularly aggregates up to 3.74" (95mm) of snow.

What is the average length of the day in January in Jackson?

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

When are sunrise and sunset in January in Jackson?

In January, on the first day of the month, sunrise is at 7:19 am and sunset at 4:16 pm. On the last day of the month, in Jackson, sunrise is at 7:03 am and sunset at 4:52 pm EST.

How many hours of sunshine does Jackson have in January?

In Jackson, New Hampshire, the average sunshine duration in January is 4.6h.

What is the UV index intensity in January in Jackson?

In January, the average daily maximum UV index in Jackson, New Hampshire, is 2. A UV Index of 2, and less, symbolizes a low health threat 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
Jackson, NH

Average temperature in January - Jackson, NH
  • Average high temperature in January: 24.3°F

The warmest month (with the highest average high temperature) is July (76.3°F).
The month with the lowest average high temperature is January (24.3°F).

  • Average low temperature in January: 10.8°F

The month with the highest average low temperature is July (55.4°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

Average pressure in January
Jackson, NH

Average pressure in January - Jackson, 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
Jackson, NH

Average wind speed in January - Jackson, NH
  • Average wind speed in January: 7.5mph

The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in January
Jackson, NH

Average humidity in January - Jackson, NH
  • Average humidity in January: 87%

The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is May (77%).

Average rainfall in January
Jackson, NH

Average rainfall in January - Jackson, NH
  • Average rainfall in January: 0.91"

The wettest months (with the highest rainfall) are April and October (1.46").
The driest month (with the least rainfall) is September (0.39").

Average rainfall days in January
Jackson, NH

Average rainfall days in January - Jackson, NH
  • Average rainfall days in January: 4.2 days

The months with the highest number of rainy days are May and July (10.3 days).
The month with the least rainy days is February (3.7 days).

Average snowfall in January
Jackson, NH

Average snowfall in January - Jackson, NH
  • Average snowfall in January: 3.74"

The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Jackson, NH

Average snowfall days in January - Jackson, NH
  • Average snowfall days in January: 8.3 days

The month with the highest number of snowfall days is February (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Jackson, NH

Average daylight in January / Average sunshine in January - Jackson, NH
  • 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: 4h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

Average sunshine days in January
Jackson, NH

Average sunshine days in January - Jackson, NH
  • Average sunshine days in January: 22.6 days

The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is June (18.2 days).

Average UV index in January
Jackson, NH

Average UV index in January - Jackson, NH
  • Average UV index in January: 2

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

Average cloud cover in January
Jackson, NH

Average cloud cover in January - Jackson, NH
  • Average cloud cover in January: 52

The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 38).

Average visibility in January
Jackson, NH

Average visibility in January - Jackson, NH
  • Average visibility in January: 4mi

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

Jackson, New Hampshire, USA

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