January weather forecast
Westwood, NJ

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Weather in January

January, the same as December, is an icy winter month in Westwood, New Jersey, with an average temperature fluctuating between 35.2°F (1.8°C) and 22.8°F (-5.1°C).

Temperature

January, known for its average high temperature of 35.2°F (1.8°C) and an average low temperature of 22.8°F (-5.1°C), is the coldest month.

Humidity

In January, the average relative humidity is 76%.

Rainfall

In January, the rain falls for 8.4 days. Throughout January, 2.28" (58mm) of precipitation is accumulated. In Westwood, New Jersey, during the entire year, the rain falls for 157.3 days and collects up to 32.72" (831mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Westwood, New Jersey, in January, during 7.3 snowfall days, 2.8" (71mm) of snow is typically accumulated. In Westwood, during the entire year, snow falls for 28 days and aggregates up to 13.82" (351mm) of snow.

Daylight

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

Sunshine

In Westwood, New Jersey, the average sunshine in January is 4.9h.

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 low health risk from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 2 in January translates into this advice:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Updated: Jun 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

In Westwood, January records the average lowest temperatures, peaking at 35.2°F (1.8°C) and reaching a low of 22.8°F (-5.1°C).

How cold is January?

In Westwood, in January, the average high-temperature is 35.2°F (1.8°C), and the average low-temperature is 22.8°F (-5.1°C).

What is the average humidity in January?

The average relative humidity in January is 76%.

How much does it rain in January?

In Westwood, during January, the rain falls for 8.4 days and regularly aggregates up to 2.28" (58mm) of precipitation.

How much does it snow in January?

In Westwood, in January, snow falls for 7.3 days, with typically accumulated 2.8" (71mm) of snow.

What is the average length of the day in January?

In Westwood, the average day length in January is 9h and 38min.

When is the sunrise / sunset in January?

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.

How long on average sun shines in January?

In Westwood, the average sunshine duration in January is 4.9h.

What are the months with the lowest UV index in Westwood?

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

How high is the UV index in January in Westwood?

In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe 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
Westwood, NJ

Average temperature in January - Westwood, NJ
  • Average high temperature in January: 35.2°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in January: 22.8°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).

Average pressure in January
Westwood, NJ

Average pressure in January - Westwood, 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).

Average wind speed in January
Westwood, NJ

Average wind speed in January - Westwood, NJ
  • Average wind speed in January: 7.9mph

The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in January
Westwood, NJ

Average humidity in January - Westwood, NJ
  • Average humidity in January: 76%

The months with the highest relative humidity are February and December (78%).
The month with the lowest relative humidity is August (70%).

Average rainfall in January
Westwood, NJ

Average rainfall in January - Westwood, NJ
  • Average rainfall in January: 2.28"

The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in January
Westwood, NJ

Average rainfall days in January - Westwood, NJ
  • Average rainfall days in January: 8.4 days

The months with the highest number of rainy days are May and July (16.8 days).
The month with the least rainy days is January (8.4 days).

Average snowfall in January
Westwood, NJ

Average snowfall in January - Westwood, NJ
  • Average snowfall in January: 2.8"

The month with the highest snowfall is February (4.09").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Westwood, NJ

Average snowfall days in January - Westwood, NJ
  • Average snowfall days in January: 7.3 days

The month with the highest number of snowfall days is February (7.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Westwood, 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: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in January
Westwood, NJ

Average sunshine days in January - Westwood, NJ
  • Average sunshine days in January: 17.6 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (11.5 days).

Average UV index in January
Westwood, NJ

Average UV index in January - Westwood, 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).

Average cloud cover in January
Westwood, NJ

Average cloud cover in January - Westwood, NJ
  • Average cloud cover in January: 46

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in January
Westwood, NJ

Average visibility in January - Westwood, NJ
  • Average visibility in January: 6mi

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

Westwood, New Jersey, USA

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