January weather forecast
Belfast, NY

Weather in January

January, the same as December, in Belfast, New York, is a freezing cold winter month, with temperature in the range of an average high of 27.5°F (-2.5°C) and an average low of 15.8°F (-9°C).

Temperature

With an average high-temperature of 27.5°F (-2.5°C) and an average low-temperature of 15.8°F (-9°C), January is the coldest month.

Humidity

January and February, with an average relative humidity of 89%, are the most humid months.

Rainfall

In Belfast, in January, during 6.8 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. In Belfast, during the entire year, the rain falls for 170.2 days and collects up to 29.29" (744mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Belfast, New York, during 20.4 snowfall days, 8.23" (209mm) of snow is typically accumulated. In Belfast, during the entire year, snow falls for 95.9 days and aggregates up to 45.12" (1146mm) of snow.

Daylight

The average length of the day in January is 9h and 30min.
On the first day of the month, sunrise is at 7:41 am and sunset at 4:50 pm. On the last day of January, sunrise is at 7:26 am and sunset at 5:24 pm EST.

Sunshine

With an average of 2.5h of sunshine, January has the least sunshine of the year.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 1 in January transform into the following instructions:
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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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 Belfast?

January is the coldest month, with an average high-temperature of 27.5°F (-2.5°C) and an average low-temperature of 15.8°F (-9°C).

What is the temperature in January in Belfast?

In January, the average high-temperature is 27.5°F (-2.5°C), and the average low-temperature is 15.8°F (-9°C).

What is the most humid month in Belfast?

The months with the highest humidity in Belfast, New York, are January and February, with an average relative humidity of 89%.

What is the average humidity in January in Belfast?

The average relative humidity in January in Belfast is 89%.

How much does it rain in Belfast in January?

In Belfast, New York, during January, the rain falls for 6.8 days and regularly aggregates up to 2.17" (55mm) of precipitation.

How much does it snow in Belfast in January?

In Belfast, New York, in January, snow falls for 20.4 days, with typically accumulated 8.23" (209mm) of snow.

How many hours of daylight does Belfast have in January?

In January, the average day length is 9h and 30min.

When is the sunrise / sunset in January in Belfast?

On the first day of January, sunrise is at 7:41 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 5:24 pm EST.

What is the month with the least sunshine in Belfast?

With an average of 2.5h of sunshine, January has the least sunshine of the year.

How long on average sun shines in January in Belfast?

The average sunshine duration in January in Belfast is 2.5h.

When is the lowest UV index in Belfast?

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Belfast.

What is the UV index intensity in January in Belfast?

In Belfast, the average daily maximum UV index in January is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from 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
Belfast, NY

Average temperature in January - Belfast, NY
  • Average high temperature in January: 27.5°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (27.5°F).

  • Average low temperature in January: 15.8°F

The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).

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Average pressure in January
Belfast, NY

Average pressure in January - Belfast, NY
  • Average pressure in January: 30.07"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in January
Belfast, NY

Average wind speed in January - Belfast, NY
  • Average wind speed in January: 10.1mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in January
Belfast, NY

Average humidity in January - Belfast, NY
  • Average humidity in January: 89%

The months with the highest relative humidity are January and February (89%).
The months with the lowest relative humidity are May, June and July (79%).

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Average rainfall in January
Belfast, NY

Average rainfall in January - Belfast, NY
  • Average rainfall in January: 2.17"

The wettest month (with the highest rainfall) is April (3.07").
The driest month (with the least rainfall) is September (1.85").

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Average rainfall days in January
Belfast, NY

Average rainfall days in January - Belfast, NY
  • Average rainfall days in January: 6.8 days

The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is January (6.8 days).

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Average snowfall in January
Belfast, NY

Average snowfall in January - Belfast, NY
  • Average snowfall in January: 8.23"

The month with the highest snowfall is February (11.1").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Belfast, NY

Average snowfall days in January - Belfast, NY
  • Average snowfall days in January: 20.4 days

The month with the highest number of snowfall days is January (20.4 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
Belfast, NY

Average daylight in January / Average sunshine in January - Belfast, NY
  • Average daylight in January: 9h and 30min

The month with the longest days is June (Average daylight: 15h and 14min).
The month with the shortest days is December (Average daylight: 9h and 8min).

  • Average sunshine in January: 2h and 30min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).

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Average sunshine days in January
Belfast, NY

Average sunshine days in January - Belfast, NY
  • Average sunshine days in January: 6.4 days

The month with the most sunshine days is September (12 days).
The month with the least sunshine days is February (5.2 days).

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Average UV index in January
Belfast, NY

Average UV index in January - Belfast, NY
  • Average UV index in January: 1

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

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Average cloud cover in January
Belfast, NY

Average cloud cover in January - Belfast, NY
  • Average cloud cover in January: 78

The month with the most cloud cover is January (Cloud cover 78).
The months with the least cloud cover are July and August (Cloud cover 40).

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Average visibility in January
Belfast, NY

Average visibility in January - Belfast, NY
  • Average visibility in January: 4mi

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

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