January weather forecast
Bernardsville, NJ

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Weather in January

January, like December, in Bernardsville, New Jersey, is another cold winter month, with an average temperature varying between 22.5°F (-5.3°C) and 35.1°F (1.7°C).

Temperature

In Bernardsville, the lowest temperatures are generally noted in January, averaging a high of 35.1°F (1.7°C) and a low of 22.5°F (-5.3°C).

Humidity

The average relative humidity in January is 77%.

Rainfall

In Bernardsville, New Jersey, in January, it is raining for 7.8 days, with typically 1.65" (42mm) of accumulated precipitation. Throughout the year, there are 155.7 rainfall days, and 27.64" (702mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall. In Bernardsville, in January, snow falls for 7.2 days, with typically accumulated 1.93" (49mm) of snow. In Bernardsville, during the entire year, snow falls for 24.7 days and aggregates up to 10.83" (275mm) of snow.

Daylight

In January, the average length of the day is 9h and 39min.
On the first day of the month, sunrise is at 7:22 am and sunset at 4:41 pm. On the last day of January, sunrise is at 7:09 am and sunset at 5:14 pm EST.

Sunshine

In January, the average sunshine in Bernardsville, New Jersey, is 5h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A daily maximum UV index of 2 in January translates into the following instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Updated: Jun 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

January, with average temperatures reaching a high of 35.1°F (1.7°C) and a low of 22.5°F (-5.3°C), is the coldest month.

How cold is it in January?

In January, the average high-temperature and low-temperature are 35.1°F (1.7°C) and 22.5°F (-5.3°C) respectively.

What is the average humidity in January?

The average relative humidity in January is 77%.

How much does it rain in January?

In Bernardsville, in January, during 7.8 rainfall days, 1.65" (42mm) of precipitation is typically accumulated.

How much does it snow in January?

In January, it is snowing for 7.2 days. Throughout January, 1.93" (49mm) of snow is accumulated.

What is the average length of the day in January?

In Bernardsville, the average day length in January is 9h and 39min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:22 am and sunset at 4:41 pm. On the last day of the month, in Bernardsville, New Jersey, sunrise is at 7:09 am and sunset at 5:14 pm EST.

How long on average sun shines in January?

In Bernardsville, New Jersey, the average sunshine duration in January is 5h.

When is the lowest UV index?

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 reading in January?

The average daily maximum UV index in January is 2. A UV Index 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
Bernardsville, NJ

Average temperature in January - Bernardsville, NJ
  • Average high temperature in January: 35.1°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.1°F).

  • Average low temperature in January: 22.5°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in January
Bernardsville, NJ

Average pressure in January - Bernardsville, NJ
  • 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).

Average wind speed in January
Bernardsville, NJ

Average wind speed in January - Bernardsville, NJ
  • Average wind speed in January: 8.2mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity in January
Bernardsville, NJ

Average humidity in January - Bernardsville, NJ
  • Average humidity in January: 77%

The months with the highest relative humidity are February and October (80%).
The month with the lowest relative humidity is April (74%).

Average rainfall in January
Bernardsville, NJ

Average rainfall in January - Bernardsville, NJ
  • Average rainfall in January: 1.65"

The wettest month (with the highest rainfall) is July (3.11").
The driest month (with the least rainfall) is September (1.57").

Average rainfall days in January
Bernardsville, NJ

Average rainfall days in January - Bernardsville, NJ
  • Average rainfall days in January: 7.8 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in January
Bernardsville, NJ

Average snowfall in January - Bernardsville, NJ
  • Average snowfall in January: 1.93"

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

Average snowfall days in January
Bernardsville, NJ

Average snowfall days in January - Bernardsville, NJ
  • Average snowfall days in January: 7.2 days

The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in January / Average sunshine in January - Bernardsville, 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 0min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in January
Bernardsville, NJ

Average sunshine days in January - Bernardsville, NJ
  • Average sunshine days in January: 18.6 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (11.2 days).

Average UV index in January
Bernardsville, NJ

Average UV index in January - Bernardsville, 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
Bernardsville, NJ

Average cloud cover in January - Bernardsville, NJ
  • Average cloud cover in January: 45

The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in January
Bernardsville, NJ

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

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

Bernardsville, New Jersey, USA

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