January weather forecast
Newark, NJ

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A mirrored reflection of Newark City in New Jersey, on the Passaic River
A mirrored reflection of Newark City in New Jersey, on the Passaic River

Weather in January

January in Newark, New Jersey, USA, greets residents with an atmosphere dominated by chilly temperatures and a decent amount of precipitation. An extended period of daylight, reaching up to 9.7 hours per day, allows for enough sunlight despite the wintry conditions. Nevertheless, with relative humidity averaging at 74% and moderate cloud coverage, a cold yet humid environment prevails. This is further complemented by snowfall averaging 1.73", lending a characteristic wintery touch to the landscape. The air pressure stabilizes around 30.06 in, contributing to the month's crisp and frosty ambiance.

Temperature

January, on average, is the coldest month, registering a high temperature of 36.3°F and a low of 25.7°F.

Humidity

In January, the average relative humidity in Newark is 74%.

Rainfall

In Newark, during January, the rain falls for 9.7 days and regularly aggregates up to 1.97" of precipitation. Throughout the year, there are 161.1 rainfall days, and 30.67" of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Newark, in January, during 6.1 snowfall days, 1.73" of snow is typically accumulated. Throughout the year, in Newark, there are 20.9 snowfall days, and 8.94" of snow is accumulated.

Ocean temperature

In Newark, the average seawater temperature in January is 41.7°F.
Note: While a brief time in 41.7°F at 55.4°F is already bracing, plunging below 50°F can severely affect breathing and introduce a cold shock, relying on your physical state.

Daylight

In January, the average length of the day in Newark is 9h and 39min.
On the first day of the month, sunrise is at 7:20 am and sunset at 4:39 pm. On the last day of January, sunrise is at 7:07 am and sunset at 5:12 pm EST.

Sunshine

In Newark, New Jersey, the average sunshine in January is 5.2h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: A daily high UV index of 2 in January leads to these guidelines:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. It's recommended to limit sun exposure when its radiation is at its peak during midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
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FAQ

What are the coldest months in Newark?

In Newark, January records the average lowest temperatures, peaking at 36.3°F and reaching a low of 25.7°F.

How cold is it in Newark in January?

The high-temperature, in January, in Newark, is 36.3°F, while the low-temperature averages to 25.7°F.

What is the average humidity in January in Newark?

In January, the average relative humidity in Newark, New Jersey, is 74%.

How much does it rain in Newark in January?

In Newark, New Jersey, in January, during 9.7 rainfall days, 1.97" of precipitation is typically accumulated.

How much does it snow in Newark in January?

In Newark, New Jersey, in January, during 6.1 snowfall days, 1.73" of snow is typically accumulated.

What is the ocean temperature in January in Newark?

In January, the average ocean temperature in Newark is 41.7°F. Swimming in 41.7°F is considered dangerous. Unprotected immersion in temperatures below 50°F causes quickly maximum intensity cold shock with hyperventilation.

How many hours of daylight does Newark have in January?

In Newark, New Jersey, the average day length in January is 9h and 39min.

What time are sunrise and sunset in January in Newark?

On the first day of January, sunrise is at 7:20 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:12 pm EST.

How long on average sun shines in January in Newark?

In January, the average sunshine duration in Newark, New Jersey, is 5.2h.

What is the month with the lowest UV index in Newark?

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

What is the UV index reading in January in Newark?

In Newark, New Jersey, 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 high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Newark, NJ

Average temperature in January - Newark, NJ
  • Average high temperature in January: 36.3°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (36.3°F).

  • Average low temperature in January: 25.7°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

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Average pressure in January
Newark, NJ

Average pressure in January - Newark, NJ
  • Average pressure in January: 30.06"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
Newark, NJ

Average wind speed in January - Newark, NJ
  • Average wind speed in January: 9.8mph

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).

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Average humidity in January
Newark, NJ

Average humidity in January - Newark, NJ
  • Average humidity in January: 74%

The months with the highest relative humidity are February, May, October and December (76%).
The months with the lowest relative humidity are April and August (72%).

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Average rainfall in January
Newark, NJ

Average rainfall in January - Newark, NJ
  • Average rainfall in January: 1.97"

The wettest months (with the highest rainfall) are July and December (3.19").
The driest month (with the least rainfall) is September (1.65").

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Average rainfall days in January
Newark, NJ

Average rainfall days in January - Newark, NJ
  • Average rainfall days in January: 9.7 days

The months with the highest number of rainy days are May and July (17.1 days).
The month with the least rainy days is November (9.5 days).

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Average snowfall in January
Newark, NJ

Average snowfall in January - Newark, NJ
  • Average snowfall in January: 1.73"

The month with the highest snowfall is March (3.46").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Newark, NJ

Average snowfall days in January - Newark, NJ
  • Average snowfall days in January: 6.1 days

The month with the highest number of snowfall days is January (6.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in January
Newark, NJ

Average sea temperature in January - Newark, NJ
  • Average sea temperature in January: 41.7°F

The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).

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Average daylight in January /
Average sunshine in January
Newark, NJ

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

The month with the longest days is June (Average daylight: 15h and 0min).
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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in January
Newark, NJ

Average sunshine days in January - Newark, NJ
  • Average sunshine days in January: 17.3 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is June (11.4 days).

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Average UV index in January
Newark, NJ

Average UV index in January - Newark, 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
Newark, NJ

Average cloud cover in January - Newark, NJ
  • Average cloud cover in January: 43

The months with the most cloud cover are February, March and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 30).

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Average visibility in January
Newark, NJ

Average visibility in January - Newark, 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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Newark, New Jersey, USA

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