January weather forecast
Somersworth, NH

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Weather in January

January in Somersworth, New Hampshire is characterized by the cold and snowy conditions that define a typical New England winter. This is the coldest month with the lowest temperatures hitting 17.4°F (-8.1°C) and the snowflakes don't hold back either, falling for about 10.4 days. Frosty air invades the city, plummeting mercury levels to the teens with endless cloud cover adding to the gloom. Despite the severe chill, life trudges on, albeit at a slower pace, with warm jackets, gloves, and scarves being essential accessories.

Temperature

In Somersworth, the month of January registers the lowest temperatures, averaging 29.7°F (-1.3°C) at the peak and 17.4°F (-8.1°C) at the lowest.

Humidity

The months with the highest humidity are January and February, with an average relative humidity of 82%.

Rainfall

In Somersworth, in January, during 7.6 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Somersworth, during the entire year, the rain falls for 143.1 days and collects up to 29.06" (738mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Somersworth, New Hampshire, during January, snow falls for 10.4 days and regularly aggregates up to 6.26" (159mm) of snow. In Somersworth, during the entire year, snow falls for 40 days and aggregates up to 27.8" (706mm) of snow.

Daylight

In January, the average length of the day in Somersworth is 9h and 25min.
On the first day of the month, sunrise is at 7:15 am and sunset at 4:18 pm. On the last day of January, sunrise is at 7:00 am and sunset at 4:53 pm EST.

Sunshine

In January, the average sunshine in Somersworth is 5h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Somersworth, New Hampshire. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 2 during January translates into these guidelines:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Frequently asked questions

What part of the year is the coldest in Somersworth?

With its average high temperature of 29.7°F (-1.3°C) and a low of 17.4°F (-8.1°C), January is regarded as the coldest month in Somersworth.

How cold is it in Somersworth in January?

An average high-temperature, in January, in Somersworth, is 29.7°F (-1.3°C) and the average low-temperature is 17.4°F (-8.1°C).

What are the most humid months in Somersworth?

The months with the highest humidity in Somersworth, New Hampshire, are January and February, with an average relative humidity of 82%.

What is the average humidity in January in Somersworth?

The average relative humidity in January in Somersworth, New Hampshire, is 82%.

How much does it rain in Somersworth in January?

In Somersworth, New Hampshire, during January, the rain falls for 7.6 days and regularly aggregates up to 2.28" (58mm) of precipitation.

How many days does it snow in January in Somersworth?

In Somersworth, New Hampshire, during January, snow falls for 10.4 days and regularly aggregates up to 6.26" (159mm) of snow.

How many hours of daylight does Somersworth have in January?

In January, the average day length in Somersworth, New Hampshire, is 9h and 25min.

When are sunrise and sunset in January in Somersworth?

On the first day of January in Somersworth, New Hampshire, sunrise is at 7:15 am and sunset at 4:18 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 4:53 pm EST.

How long on average sun shines in January in Somersworth?

In Somersworth, the average sunshine duration in January is 5h.

When is the lowest UV index in Somersworth?

The months with the lowest UV index in Somersworth are January through March, November and December, with an average maximum UV index of 2.

What is the UV index reading in January in Somersworth?

The average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low health threat from unprotected exposure to 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
Somersworth, NH

Average temperature in January - Somersworth, NH
  • Average high temperature in January: 29.7°F

The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in January: 17.4°F

The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).

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Average pressure in January
Somersworth, NH

Average pressure in January - Somersworth, NH
  • Average pressure in January: 29.99"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in January
Somersworth, NH

Average wind speed in January - Somersworth, NH
  • Average wind speed in January: 9.3mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in January
Somersworth, NH

Average humidity in January - Somersworth, NH
  • Average humidity in January: 82%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is April (75%).

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Average rainfall in January
Somersworth, NH

Average rainfall in January - Somersworth, NH
  • Average rainfall in January: 2.28"

The wettest months (with the highest rainfall) are October and December (3.11").
The driest month (with the least rainfall) is September (1.5").

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Average rainfall days in January
Somersworth, NH

Average rainfall days in January - Somersworth, NH
  • Average rainfall days in January: 7.6 days

The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is February (6.8 days).

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Average snowfall in January
Somersworth, NH

Average snowfall in January - Somersworth, NH
  • Average snowfall in January: 6.26"

The month with the highest snowfall is December (6.69").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Somersworth, NH

Average snowfall days in January - Somersworth, NH
  • Average snowfall days in January: 10.4 days

The month with the highest number of snowfall days is January (10.4 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
Somersworth, NH

Average daylight in January / Average sunshine in January - Somersworth, NH
  • Average daylight in January: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in January: 5h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in January
Somersworth, NH

Average sunshine days in January - Somersworth, NH
  • Average sunshine days in January: 16.3 days

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is April (13.3 days).

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Average UV index in January
Somersworth, NH

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

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in January
Somersworth, NH

Average cloud cover in January - Somersworth, NH
  • Average cloud cover in January: 45

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in January
Somersworth, NH

Average visibility in January - Somersworth, NH
  • Average visibility in January: 6mi

The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).

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Somersworth, New Hampshire, USA

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