January weather forecast
South Hackensack, NJ

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Weather in January

January, like December, in South Hackensack, New Jersey, is an icy winter month, with an average temperature fluctuating between 24.4°F (-4.2°C) and 35.6°F (2°C).

Temperature

January brings the lowest temperatures, with an average high of 35.6°F (2°C) and an average low of 24.4°F (-4.2°C).

Humidity

The average relative humidity in January in South Hackensack is 75%.

Rainfall

In January, the rain falls for 8.5 days. Throughout January, 2.01" (51mm) of precipitation is accumulated. Throughout the year, there are 156.4 rainfall days, and 29.65" (753mm) of precipitation is accumulated.

Snowfall

Months with snowfall in South Hackensack are January through April, November and December. In January, it is snowing for 6.3 days. Throughout January, 2.01" (51mm) of snow is accumulated. Throughout the year, there are 22.5 snowfall days, and 9.17" (233mm) of snow is accumulated.

Daylight

In January, the average length of the day in South Hackensack is 9h and 38min.
On the first day of January, sunrise is at 7:20 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:11 pm EST.

Sunshine

In January, the average sunshine in South Hackensack is 5.1h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in South Hackensack. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 2 during January translates into the following directions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. 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 part of the year is the coldest in South Hackensack?

January, with its high-temperature average of 35.6°F (2°C) and a low-temperature average of 24.4°F (-4.2°C), is the coldest month.

How cold is it in South Hackensack in January?

An average high-temperature, in January, in South Hackensack, is 35.6°F (2°C) and the average low-temperature is 24.4°F (-4.2°C).

What is the average humidity in January in South Hackensack?

In January, the average relative humidity in South Hackensack, New Jersey, is 75%.

How many days does it rain in January in South Hackensack?

In January, in South Hackensack, New Jersey, the rain falls for 8.5 days. Throughout January, 2.01" (51mm) of precipitation is accumulated.

How many days does it snow in January in South Hackensack?

In South Hackensack, in January, snow falls for 6.3 days, with typically accumulated 2.01" (51mm) of snow.

How many hours of daylight does South Hackensack have in January?

The average day length in January in South Hackensack is 9h and 38min.

When is the sunrise / sunset in January in South Hackensack?

On the first day of January in South Hackensack, sunrise is at 7:20 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:11 pm EST.

How long on average sun shines in January in South Hackensack?

In January, the average sunshine duration in South Hackensack, New Jersey, is 5.1h.

What are the months with the lowest UV index in South Hackensack?

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

What is the UV index intensity in January in South Hackensack?

The average daily maximum UV index in January in South Hackensack is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's 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
South Hackensack, NJ

Average temperature in January - South Hackensack, NJ
  • Average high temperature in January: 35.6°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in January: 24.4°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).

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Average pressure in January
South Hackensack, NJ

Average pressure in January - South Hackensack, NJ
  • Average pressure in January: 30.06"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in January
South Hackensack, NJ

Average wind speed in January - South Hackensack, NJ
  • Average wind speed in January: 9mph

The windiest month (with the highest average wind speed) is January (9mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in January
South Hackensack, NJ

Average humidity in January - South Hackensack, NJ
  • Average humidity in January: 75%

The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (70%).

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Average rainfall in January
South Hackensack, NJ

Average rainfall in January - South Hackensack, NJ
  • Average rainfall in January: 2.01"

The wettest month (with the highest rainfall) is December (3.15").
The driest month (with the least rainfall) is September (1.61").

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Average rainfall days in January
South Hackensack, NJ

Average rainfall days in January - South Hackensack, NJ
  • Average rainfall days in January: 8.5 days

The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is January (8.5 days).

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Average snowfall in January
South Hackensack, NJ

Average snowfall in January - South Hackensack, NJ
  • Average snowfall in January: 2.01"

The month with the highest snowfall is March (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
South Hackensack, NJ

Average snowfall days in January - South Hackensack, NJ
  • Average snowfall days in January: 6.3 days

The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in January /
Average sunshine in January
South Hackensack, NJ

Average daylight in January / Average sunshine in January - South Hackensack, NJ
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in January: 5h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in January
South Hackensack, NJ

Average sunshine days in January - South Hackensack, NJ
  • Average sunshine days in January: 17.5 days

The month with the most sunshine days is November (18.4 days).
The months with the least sunshine days are May and June (12.7 days).

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Average UV index in January
South Hackensack, NJ

Average UV index in January - South Hackensack, NJ
  • Average UV index in January: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in January
South Hackensack, NJ

Average cloud cover in January - South Hackensack, NJ
  • Average cloud cover in January: 44

The month with the most cloud cover is March (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 31).

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Average visibility in January
South Hackensack, NJ

Average visibility in January - South Hackensack, NJ
  • Average visibility in January: 6mi

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

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South Hackensack, New Jersey, USA

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