January weather forecast
Hanover, NH

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Weather in January

Hanover, New Hampshire begins the year with a cool and dry winter month. Typical of January, lower temperatures prevail, reaching from a chilly 12.6°F (-10.8°C) to a slightly warmer 25°F (-3.9°C), along with an impressive amount of snowfall at 8.39" (213mm). The weather follows a consistent pattern of cloud cover, less sunshine, and variable wind speeds. Winter sports enthusiasts value this month, taking advantage of the snowy climate. In essence, January in Hanover offers a classic New England winter setting.

Temperature

The lowest temperatures are recorded in January, with averages reaching a high of 25°F (-3.9°C) and a low of 12.6°F (-10.8°C).

Humidity

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

Rainfall

In Hanover, New Hampshire, 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

January through May, October through December are months with snowfall in Hanover, New Hampshire. In Hanover, in January, during 16.5 snowfall days, 8.39" (213mm) of snow is typically accumulated. In Hanover, during the entire year, snow falls for 75.5 days and aggregates up to 40.83" (1037mm) of snow.

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, sunrise is at 7:07 am and sunset at 4:58 pm EST.

Sunshine

In January, the average sunshine is 3.8h.

UV index

In Hanover, New Hampshire, 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 the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 2 in January converts into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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Frequently asked questions

What time of the year is the coldest in Hanover?

Hanover's January weather, with an average high temperature of 25°F (-3.9°C) and an average low temperature of 12.6°F (-10.8°C), tends to be the coldest of the year.

How cold is it in Hanover in January?

In January, in Hanover, the average high-temperature is 25°F (-3.9°C), and the average low-temperature is 12.6°F (-10.8°C).

What are the most humid months in Hanover?

January and February, with an average relative humidity of 86%, are most humid months.

What is the average humidity in January in Hanover?

In Hanover, New Hampshire, the average relative humidity in January is 86%.

How many days does it rain in January in Hanover?

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, New Hampshire, during January, snow falls for 16.5 days and regularly aggregates up to 8.39" (213mm) of snow.

What is the average length of the day in January in Hanover?

In January, the average day length is 9h and 22min.

What time are sunrise and 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, in Hanover, New Hampshire, sunrise is at 7:07 am and sunset at 4:58 pm EST.

How many hours of sunshine does Hanover have in January?

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

What is the UV index intensity in January in Hanover?

The average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
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 2min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in January: 3h and 5min

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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Hanover, New Hampshire, USA

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