January weather forecast
Rollinsford, NH

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Weather in January

January, like December, is another subzero cold winter month in Rollinsford, New Hampshire, with temperature in the range of an average low of 17.4°F (-8.1°C) and an average high of 29.7°F (-1.3°C).

Temperature

January tends to be the coldest month, with temperatures averaging a daily high of 29.7°F (-1.3°C) and a low of 17.4°F (-8.1°C).

Humidity

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

Rainfall

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

Snowfall

Months with snowfall are January through May, October through December. In January, in Rollinsford, it is snowing for 10.4 days. Throughout January, 6.26" (159mm) of snow is accumulated. Throughout the year, in Rollinsford, there are 40 snowfall days, and 27.8" (706mm) of snow is accumulated.

Daylight

The average length of the day in January in Rollinsford 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, in Rollinsford, sunrise is at 7:00 am and sunset at 4:53 pm EST.

Sunshine

In Rollinsford, New Hampshire, the average sunshine in January 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. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: During January, 2 as the daily maximum UV index converts into the following advice:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. To protect against the Sun's most potent rays, avoid direct exposure around midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
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Frequently asked questions

What part of the year is the coldest in Rollinsford?

The month of January sees the average lowest temperatures in Rollinsford, reaching 29.7°F (-1.3°C) at the peak and 17.4°F (-8.1°C) at the low.

How cold is January in Rollinsford?

In Rollinsford, in January, the average high-temperature 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 Rollinsford?

January and February, with an average relative humidity of 82%, are most humid months.

What is the average humidity in January in Rollinsford?

In Rollinsford, New Hampshire, the average relative humidity in January is 82%.

How many days does it rain in January in Rollinsford?

In Rollinsford, in January, during 7.6 rainfall days, 2.28" (58mm) of precipitation is typically accumulated.

How many days does it snow in January in Rollinsford?

In Rollinsford, New Hampshire, in January, during 10.4 snowfall days, 6.26" (159mm) of snow is typically accumulated.

How many hours of daylight does Rollinsford have in January?

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

What time are sunrise and sunset in January in Rollinsford?

On the first day of January in Rollinsford, 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 many hours of sunshine does Rollinsford have in January?

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

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

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

How high is the UV index in January in Rollinsford?

In January, the average daily maximum UV index in Rollinsford is 2. A UV Index estimate of 2, and below, represents a low health risk 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
Rollinsford, NH

Average temperature in January - Rollinsford, 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
Rollinsford, NH

Average pressure in January - Rollinsford, 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
Rollinsford, NH

Average wind speed in January - Rollinsford, 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
Rollinsford, NH

Average humidity in January - Rollinsford, 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
Rollinsford, NH

Average rainfall in January - Rollinsford, 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
Rollinsford, NH

Average rainfall days in January - Rollinsford, 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
Rollinsford, NH

Average snowfall in January - Rollinsford, 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
Rollinsford, NH

Average snowfall days in January - Rollinsford, 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
Rollinsford, NH

Average daylight in January / Average sunshine in January - Rollinsford, 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
Rollinsford, NH

Average sunshine days in January - Rollinsford, 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
Rollinsford, NH

Average UV index in January - Rollinsford, 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
Rollinsford, NH

Average cloud cover in January - Rollinsford, 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
Rollinsford, NH

Average visibility in January - Rollinsford, 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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Rollinsford, New Hampshire, USA

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