January weather forecast
Troy, NH

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Weather in January

January, the same as December, in Troy, New Hampshire, is a freezing cold winter month, with an average temperature varying between 27.9°F (-2.3°C) and 15.1°F (-9.4°C).

Temperature

The coldest temperatures occur during January, when averages reach a peak of 27.9°F (-2.3°C) and a low of 15.1°F (-9.4°C).

Humidity

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

Rainfall

In Troy, in January, during 6.3 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. In Troy, during the entire year, the rain falls for 125.1 days and collects up to 11.69" (297mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Troy. January is the month with the most snowfall in Troy. Snow falls for 9.2 days and accumulates 2.64" (67mm) of snow.

Daylight

The average length of the day in January in Troy is 9h and 28min.
On the first day of the month, sunrise is at 7:19 am and sunset at 4:24 pm. On the last day of January, sunrise is at 7:04 am and sunset at 4:59 pm EST.

Sunshine

In January, the average sunshine is 4.9h.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Troy. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index, 2 during January, leads to the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Frequently asked questions

What are the coldest months in Troy?

Temperature readings reach their annual highs in January, averaging 27.9°F (-2.3°C) and a minimum average of 15.1°F (-9.4°C).

How cold is January in Troy?

Troy in January has an average high-temperature of 27.9°F (-2.3°C) and an average low-temperature of 15.1°F (-9.4°C).

What is the average humidity in January in Troy?

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

How many days does it rain in January in Troy?

In January, in Troy, the rain falls for 6.3 days. Throughout January, 0.83" (21mm) of precipitation is accumulated.

When does it snow the most in Troy?

The month with the most snowfall in Troy is January, when snow falls for 9.2 days and typically aggregates up to 2.64" (67mm) of snow.

How many days does it snow in January in Troy?

In January, it is snowing for 9.2 days. Throughout January, 2.64" (67mm) of snow is accumulated.

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

The average day length in January in Troy is 9h and 28min.

When are sunrise and sunset in January in Troy?

In January, on the first day of the month, sunrise is at 7:19 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 4:59 pm EST.

How many hours of sunshine does Troy have in January?

In Troy, New Hampshire, the average sunshine duration in January is 4.9h.

When is the lowest UV index in Troy?

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Troy, New Hampshire.

How high is the UV index in January in Troy?

In Troy, the average daily maximum UV index in January is 2. A UV Index reading 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
Troy, NH

Average temperature in January - Troy, NH
  • Average high temperature in January: 27.9°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in January: 15.1°F

The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).

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Average pressure in January
Troy, NH

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

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in January
Troy, NH

Average wind speed in January - Troy, NH
  • Average wind speed in January: 7.9mph

The windiest months (with the highest average wind speed) are January, February and March (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in January
Troy, NH

Average humidity in January - Troy, 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
Troy, NH

Average rainfall in January - Troy, NH
  • Average rainfall in January: 0.83"

The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is March (0.75").

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Average rainfall days in January
Troy, NH

Average rainfall days in January - Troy, NH
  • Average rainfall days in January: 6.3 days

The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (6.3 days).

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Average snowfall in January
Troy, NH

Average snowfall in January - Troy, NH
  • Average snowfall in January: 2.64"

The month with the highest snowfall is January (2.64").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Troy, NH

Average snowfall days in January - Troy, NH
  • Average snowfall days in January: 9.2 days

The month with the highest number of snowfall days is February (9.4 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
Troy, NH

Average daylight in January / Average sunshine in January - Troy, NH
  • Average daylight in January: 9h and 3min

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 5min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

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Average sunshine days in January
Troy, NH

Average sunshine days in January - Troy, NH
  • Average sunshine days in January: 19.6 days

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (13.8 days).

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Average UV index in January
Troy, NH

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

The month with the highest UV index is July (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
Troy, NH

Average cloud cover in January - Troy, NH
  • Average cloud cover in January: 47

The months with the most cloud cover are February and March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in January
Troy, NH

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

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

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Troy, New Hampshire, USA

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