January weather forecast
Littleton, NH

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Weather in January

Starting the year in Littleton, January is characterized by below-freezing temperatures with an average low of 9.3°F (-12.6°C) and a high of 22.5°F (-5.3°C). Heavy snowfall is also common in this month, resulting in a winter wonderland in Littleton. The daylight hours are relatively short and the skies remain cloudy for the most part. Moving from January to February, the temperatures remain frigid, but the average snowfall tends to lessen slightly.

Temperature

The coldest temperatures in Littleton, New Hampshire, occur during January, when averages reach a peak of 22.5°F (-5.3°C) and a low of 9.3°F (-12.6°C).

Humidity

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

Rainfall

In January, the rain falls for 7.9 days. Throughout January, 2.36" (60mm) of precipitation is accumulated. In Littleton, during the entire year, the rain falls for 164.3 days and collects up to 29.45" (748mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Littleton. In Littleton, during January, snow falls for 21.1 days and regularly aggregates up to 12.68" (322mm) of snow. Throughout the year, there are 99.6 snowfall days, and 57.68" (1465mm) of snow is accumulated.

Daylight

The average length of the day in January in Littleton is 9h and 19min.
On the first day of the month, sunrise is at 7:22 am and sunset at 4:18 pm. On the last day of January, in Littleton, sunrise is at 7:06 am and sunset at 4:54 pm EST.

Sunshine

The average sunshine in January in Littleton is 3.1h.

UV index

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Littleton. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In January, the maximum UV index of 1 translates into these guidelines:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
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Frequently asked questions

What are the coldest months in Littleton?

The coldest period in Littleton tends to be January, when average temperatures fluctuate between a high of 22.5°F (-5.3°C) and a low of 9.3°F (-12.6°C).

How cold is it in Littleton in January?

In January, the average high-temperature and low-temperature are 22.5°F (-5.3°C) and 9.3°F (-12.6°C) respectively.

What is the most humid month in Littleton?

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 Littleton?

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

How many days does it rain in January in Littleton?

In Littleton, New Hampshire, during January, the rain falls for 7.9 days and regularly aggregates up to 2.36" (60mm) of precipitation.

How many days does it snow in January in Littleton?

In Littleton, New Hampshire, during January, snow falls for 21.1 days and regularly aggregates up to 12.68" (322mm) of snow.

How many hours of daylight does Littleton have in January?

In January, the average day length in Littleton is 9h and 19min.

What time are sunrise and sunset in January in Littleton?

In January, on the first day of the month, sunrise is at 7:22 am and sunset at 4:18 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 4:54 pm EST.

How many hours of sunshine does Littleton have in January?

In January, the average sunshine duration is 3.1h.

What are the months with the lowest UV index in Littleton?

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

What is the UV index intensity in January in Littleton?

In January, the average daily maximum UV index in Littleton is 1. A UV Index of 2, and less, symbolizes 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
Littleton, NH

Average temperature in January - Littleton, NH
  • Average high temperature in January: 22.5°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 (22.5°F).

  • Average low temperature in January: 9.3°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 (9.3°F).

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Average pressure in January
Littleton, NH

Average pressure in January - Littleton, NH
  • 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).

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Average wind speed in January
Littleton, NH

Average wind speed in January - Littleton, NH
  • Average wind speed in January: 6.1mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity in January
Littleton, NH

Average humidity in January - Littleton, NH
  • 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%).

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Average rainfall in January
Littleton, NH

Average rainfall in January - Littleton, NH
  • Average rainfall in January: 2.36"

The wettest month (with the highest rainfall) is October (2.91").
The driest month (with the least rainfall) is September (2.09").

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Average rainfall days in January
Littleton, NH

Average rainfall days in January - Littleton, NH
  • Average rainfall days in January: 7.9 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (6.7 days).

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Average snowfall in January
Littleton, NH

Average snowfall in January - Littleton, NH
  • Average snowfall in January: 12.68"

The month with the highest snowfall is February (13.58").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Littleton, NH

Average snowfall days in January - Littleton, NH
  • Average snowfall days in January: 21.1 days

The month with the highest number of snowfall days is January (21.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Littleton, 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: 3h and 1min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 0min).

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Average sunshine days in January
Littleton, NH

Average sunshine days in January - Littleton, NH
  • Average sunshine days in January: 8.2 days

The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (5.9 days).

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Average UV index in January
Littleton, NH

Average UV index in January - Littleton, 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).

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Average cloud cover in January
Littleton, NH

Average cloud cover in January - Littleton, NH
  • Average cloud cover in January: 69

The month with the most cloud cover is February (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 39).

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Average visibility in January
Littleton, NH

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

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

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Littleton, New Hampshire, USA

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