January weather forecast
Hanover, NH

Weather in January

January, the same as December, in Hanover, New Hampshire, is a freezing cold winter month, with an average temperature fluctuating between 12.6°F (-10.8°C) and 25°F (-3.9°C).

Temperature

The coldest month is January, with an average high-temperature of 25°F (-3.9°C) and an average low-temperature of 12.6°F (-10.8°C).

Humidity

The months with the highest humidity in Hanover, New Hampshire, are January and February, with an average relative humidity of 86%.

Rainfall

In Hanover, in January, during 8.9 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. Throughout the year, in Hanover, there are 156.9 rainfall days, and 28.23" (717mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Hanover, snow falls for 16.5 days, with typically accumulated 8.39" (213mm) of snow. Throughout the year, there are 75.5 snowfall days, and 40.83" (1037mm) of snow is accumulated.

Daylight

In Hanover, the average length of the day in January is 9h and 22min.
On the first day of the month, sunrise is at 7:22 am and sunset at 4:22 pm. On the last day of January, in Hanover, sunrise is at 7:06 am and sunset at 4:58 pm EST.

Sunshine

In Hanover, New Hampshire, the average sunshine in January is 3.8h.

UV index

The average daily maximum UV index in January in Hanover is 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: In January, the average maximum UV index of 2 translate into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in Hanover?

With an average high-temperature of 25°F (-3.9°C) and an average low-temperature of 12.6°F (-10.8°C), January is the coldest month.

What is the most humid month in Hanover?

The months with the highest humidity are January and February, with an average relative humidity of 86%.

What is the average humidity in January in Hanover?

In January, the average relative humidity is 86%.

How much does it rain in Hanover in January?

In Hanover, New Hampshire, in January, during 8.9 rainfall days, 2.05" (52mm) of precipitation is typically accumulated.

How many days does it snow in January in Hanover?

In Hanover, in January, during 16.5 snowfall days, 8.39" (213mm) of snow is typically accumulated.

How many hours of daylight does Hanover have in January?

The average day length in January is 9h and 22min.

When is the sunrise / sunset in January in Hanover?

In January, on the first day of the month, sunrise is at 7:22 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 4:58 pm EST.

How many hours of sunshine does Hanover have in January?

In Hanover, New Hampshire, the average sunshine duration in January is 3.8h.

What is the UV index reading in January in Hanover?

The average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Hanover, NH

Average temperature in January - Hanover, NH
  • Average high temperature in January: 25°F

The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (25°F).

  • Average low temperature in January: 12.6°F

The month with the highest average low temperature is July (56.5°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).

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Average pressure in January
Hanover, NH

Average pressure in January - Hanover, NH
  • Average pressure in January: 30.02"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in January
Hanover, NH

Average wind speed in January - Hanover, NH
  • Average wind speed in January: 7.2mph

The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in January
Hanover, NH

Average humidity in January - Hanover, NH
  • Average humidity in January: 86%

The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is May (75%).

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Average rainfall in January
Hanover, NH

Average rainfall in January - Hanover, NH
  • Average rainfall in January: 2.05"

The wettest month (with the highest rainfall) is October (2.99").
The driest month (with the least rainfall) is September (1.85").

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Average rainfall days in January
Hanover, NH

Average rainfall days in January - Hanover, NH
  • Average rainfall days in January: 8.9 days

The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is February (7.9 days).

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Average snowfall in January
Hanover, NH

Average snowfall in January - Hanover, NH
  • Average snowfall in January: 8.39"

The month with the highest snowfall is February (11.57").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Hanover, NH

Average snowfall days in January - Hanover, NH
  • Average snowfall days in January: 16.5 days

The month with the highest number of snowfall days is January (16.5 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
Hanover, NH

Average daylight in January / Average sunshine in January - Hanover, NH
  • Average daylight in January: 9h and 22min

The month with the longest days is June (Average daylight: 15h and 23min).
The month with the shortest days is December (Average daylight: 8h and 59min).

  • Average sunshine in January: 3h and 48min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).

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Average sunshine days in January
Hanover, NH

Average sunshine days in January - Hanover, NH
  • Average sunshine days in January: 11.8 days

The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is February (9.8 days).

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Average UV index in January
Hanover, NH

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

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

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Average cloud cover in January
Hanover, NH

Average cloud cover in January - Hanover, NH
  • Average cloud cover in January: 60

The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 37).

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Average visibility in January
Hanover, NH

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

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

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