January weather forecast
Berkeley Heights, NJ

Weather in January

January, like December, in Berkeley Heights, New Jersey, is a wintry winter month, with an average temperature ranging between max 35.4°F (1.9°C) and min 23.4°F (-4.8°C).

Temperature

With an average high-temperature of 35.4°F (1.9°C) and an average low-temperature of 23.4°F (-4.8°C), January is the coldest month.

Humidity

In Berkeley Heights, the average relative humidity in January is 76%.

Rainfall

In Berkeley Heights, New Jersey, during January, the rain falls for 9.2 days and regularly aggregates up to 2.01" (51mm) of precipitation. Throughout the year, in Berkeley Heights, there are 161.2 rainfall days, and 30.31" (770mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Berkeley Heights, during 7.9 snowfall days, 2.09" (53mm) of snow is typically accumulated. Throughout the year, there are 26.6 snowfall days, and 11.18" (284mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 40min.
On the first day of the month, sunrise is at 7:21 am and sunset at 4:40 pm. On the last day of January, in Berkeley Heights, sunrise is at 7:08 am and sunset at 5:13 pm EST.

Sunshine

In Berkeley Heights, the average sunshine in January is 5.1h.

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 reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 2 in January interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Berkeley Heights?

January is the coldest month in Berkeley Heights, with an average high-temperature of 35.4°F (1.9°C) and an average low-temperature of 23.4°F (-4.8°C).

What is the temperature in January in Berkeley Heights?

In January, the average high-temperature is 35.4°F (1.9°C), and the average low-temperature is 23.4°F (-4.8°C).

What is the average humidity in January in Berkeley Heights?

In January, the average relative humidity in Berkeley Heights is 76%.

How many days does it rain in January in Berkeley Heights?

In Berkeley Heights, during January, the rain falls for 9.2 days and regularly aggregates up to 2.01" (51mm) of precipitation.

How many days does it snow in January in Berkeley Heights?

In Berkeley Heights, New Jersey, during January, snow falls for 7.9 days and regularly aggregates up to 2.09" (53mm) of snow.

What is the average length of the day in January in Berkeley Heights?

The average day length in January is 9h and 40min.

When is the sunrise / sunset in January in Berkeley Heights?

In January, on the first day of the month, sunrise is at 7:21 am and sunset at 4:40 pm. On the last day of the month, in Berkeley Heights, New Jersey, sunrise is at 7:08 am and sunset at 5:13 pm EST.

How long on average sun shines in January in Berkeley Heights?

The average sunshine duration in January in Berkeley Heights, New Jersey, is 5.1h.

When is the lowest UV index in Berkeley Heights?

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

What is the UV index reading in January in Berkeley Heights?

The average daily maximum UV index in January in Berkeley Heights is 2. A UV Index estimate of 2, and below, represents a low health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Berkeley Heights, NJ

Average temperature in January - Berkeley Heights, NJ
  • Average high temperature in January: 35.4°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in January: 23.4°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

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Average pressure in January
Berkeley Heights, NJ

Average pressure in January - Berkeley Heights, 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).

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Average wind speed in January
Berkeley Heights, NJ

Average wind speed in January - Berkeley Heights, NJ
  • Average wind speed in January: 8.5mph

The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in January
Berkeley Heights, NJ

Average humidity in January - Berkeley Heights, NJ
  • Average humidity in January: 76%

The months with the highest relative humidity are February and December (79%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in January
Berkeley Heights, NJ

Average rainfall in January - Berkeley Heights, NJ
  • Average rainfall in January: 2.01"

The wettest months (with the highest rainfall) are July and December (3.11").
The driest month (with the least rainfall) is September (1.69").

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Average rainfall days in January
Berkeley Heights, NJ

Average rainfall days in January - Berkeley Heights, NJ
  • Average rainfall days in January: 9.2 days

The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is January (9.2 days).

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Average snowfall in January
Berkeley Heights, NJ

Average snowfall in January - Berkeley Heights, NJ
  • Average snowfall in January: 2.09"

The month with the highest snowfall is March (3.43").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Berkeley Heights, NJ

Average snowfall days in January - Berkeley Heights, NJ
  • Average snowfall days in January: 7.9 days

The month with the highest number of snowfall days is January (7.9 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
Berkeley Heights, NJ

Average daylight in January / Average sunshine in January - Berkeley Heights, NJ
  • Average daylight in January: 9h and 40min

The month with the longest days is June (Average daylight: 15h and 2min).
The month with the shortest days is December (Average daylight: 9h and 19min).

  • Average sunshine in January: 5h and 6min

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 36min).

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Average sunshine days in January
Berkeley Heights, NJ

Average sunshine days in January - Berkeley Heights, NJ
  • Average sunshine days in January: 16.8 days

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (11.3 days).

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Average UV index in January
Berkeley Heights, NJ

Average UV index in January - Berkeley Heights, 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
Berkeley Heights, NJ

Average cloud cover in January - Berkeley Heights, NJ
  • Average cloud cover in January: 45

The month with the most cloud cover is March (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 33).

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Average visibility in January
Berkeley Heights, NJ

Average visibility in January - Berkeley Heights, 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).

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