January weather forecast
Hillsboro, NH

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Weather in January

January, the same as December, in Hillsboro, New Hampshire, is another subzero cold winter month, with an average temperature fluctuating between 14.5°F (-9.7°C) and 27.7°F (-2.4°C).

Temperature

Hillsboro experiences its lowest average temperatures in January, reaching a peak of 27.7°F (-2.4°C) and a minimum of 14.5°F (-9.7°C).

Humidity

The average relative humidity in January in Hillsboro is 84%.

Rainfall

In Hillsboro, New Hampshire, in January, it is raining for 7.6 days, with typically 2.2" (56mm) of accumulated precipitation. In Hillsboro, during the entire year, the rain falls for 147.7 days and collects up to 30.91" (785mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Hillsboro, in January, during 12.1 snowfall days, 7.95" (202mm) of snow is typically accumulated. Throughout the year, in Hillsboro, there are 54.9 snowfall days, and 37.2" (945mm) of snow is accumulated.

Daylight

In January, the average length of the day in Hillsboro is 9h and 26min.
On the first day of the month, sunrise is at 7:19 am and sunset at 4:22 pm. On the last day of January, sunrise is at 7:04 am and sunset at 4:57 pm EST.

Sunshine

The average sunshine in January is 4.6h.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Hillsboro. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 2 during January leads to these advisories:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. To guard against the harmful effects of the Sun, minimize exposure during midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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Frequently asked questions

What is the coldest month in Hillsboro?

Temperature readings reach their annual highs in January, averaging 27.7°F (-2.4°C) and a minimum average of 14.5°F (-9.7°C).

How cold is it in Hillsboro in January?

In Hillsboro, in January, the average high-temperature is 27.7°F (-2.4°C), and the average low-temperature is 14.5°F (-9.7°C).

What is the average humidity in January in Hillsboro?

In Hillsboro, New Hampshire, the average relative humidity in January is 84%.

How much does it rain in Hillsboro in January?

In Hillsboro, during January, the rain falls for 7.6 days and regularly aggregates up to 2.2" (56mm) of precipitation.

How many days does it snow in January in Hillsboro?

In January, in Hillsboro, New Hampshire, it is snowing for 12.1 days. Throughout January, 7.95" (202mm) of snow is accumulated.

How many hours of daylight does Hillsboro have in January?

In January, the average day length in Hillsboro is 9h and 26min.

When is the sunrise / sunset in January in Hillsboro?

On the first day of January in Hillsboro, sunrise is at 7:19 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 4:57 pm EST.

How long on average sun shines in January in Hillsboro?

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

What is the month with the lowest UV index in Hillsboro?

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

What is the UV index intensity in January in Hillsboro?

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

Average temperature in January - Hillsboro, NH
  • Average high temperature in January: 27.7°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (27.7°F).

  • Average low temperature in January: 14.5°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).

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Average pressure in January
Hillsboro, NH

Average pressure in January - Hillsboro, NH
  • Average pressure in January: 30.01"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in January
Hillsboro, NH

Average wind speed in January - Hillsboro, NH
  • Average wind speed in January: 8mph

The windiest months (with the highest average wind speed) are January and February (8mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in January
Hillsboro, NH

Average humidity in January - Hillsboro, NH
  • Average humidity in January: 84%

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in January
Hillsboro, NH

Average rainfall in January - Hillsboro, NH
  • Average rainfall in January: 2.2"

The wettest month (with the highest rainfall) is October (3.46").
The driest month (with the least rainfall) is September (2.17").

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Average rainfall days in January
Hillsboro, NH

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

The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is January (7.6 days).

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Average snowfall in January
Hillsboro, NH

Average snowfall in January - Hillsboro, NH
  • Average snowfall in January: 7.95"

The month with the highest snowfall is February (10.12").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Hillsboro, NH

Average snowfall days in January - Hillsboro, NH
  • Average snowfall days in January: 12.1 days

The month with the highest number of snowfall days is February (12.6 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
Hillsboro, NH

Average daylight in January / Average sunshine in January - Hillsboro, 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 6min).

  • 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 6min).

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Average sunshine days in January
Hillsboro, NH

Average sunshine days in January - Hillsboro, NH
  • Average sunshine days in January: 15.8 days

The month with the most sunshine days is September (16.1 days).
The month with the least sunshine days is March (12.1 days).

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Average UV index in January
Hillsboro, NH

Average UV index in January - Hillsboro, 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, October, November and December (UV index 2).

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Average cloud cover in January
Hillsboro, NH

Average cloud cover in January - Hillsboro, NH
  • Average cloud cover in January: 50

The month with the most cloud cover is March (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 36).

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Average visibility in January
Hillsboro, NH

Average visibility in January - Hillsboro, NH
  • Average visibility in January: 5mi

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

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Hillsboro, New Hampshire, USA

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