January weather forecast
Alpine, NJ

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Weather in January

January, like December, in Alpine, New Jersey, is another cold winter month, with temperature in the range of an average low of 24.1°F (-4.4°C) and an average high of 35.4°F (1.9°C).

Temperature

Alpine's coldest month, January, generally records average temperatures ranging from a high of 35.4°F (1.9°C) to a low of 24.1°F (-4.4°C).

Humidity

In January, the average relative humidity is 75%.

Rainfall

In Alpine, New Jersey, in January, it is raining for 8.2 days, with typically 2.2" (56mm) of accumulated precipitation. In Alpine, during the entire year, the rain falls for 153.9 days and collects up to 30.75" (781mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Alpine, during January, snow falls for 6.9 days and regularly aggregates up to 2.17" (55mm) of snow. Throughout the year, there are 25.5 snowfall days, and 10.55" (268mm) of snow is accumulated.

Daylight

In Alpine, the average length of the day in January is 9h and 38min.
On the first day of the month, sunrise is at 7:20 am and sunset at 4:37 pm. On the last day of January, sunrise is at 7:07 am and sunset at 5:10 pm EST.

Sunshine

In January, the average sunshine 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 value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 2 in January translates into the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Experience reduced UV exposure by about half when donning a wide-brim hat. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in Alpine?

January stands out as Alpine's coldest month, with temperatures ranging between an average high of 35.4°F (1.9°C) and a low of 24.1°F (-4.4°C).

How cold is January?

The high-temperature during January is 35.4°F (1.9°C) and the low-temperature is 24.1°F (-4.4°C).

What is the average humidity in January?

In January, the average relative humidity is 75%.

How much does it rain in January?

In Alpine, in January, during 8.2 rainfall days, 2.2" (56mm) of precipitation is typically accumulated.

How much does it snow in January?

In Alpine, during January, snow falls for 6.9 days and regularly aggregates up to 2.17" (55mm) of snow.

How many hours of daylight does Alpine have in January?

In January, the average day length in Alpine 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 4:37 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:10 pm EST.

How many hours of sunshine does Alpine have in January?

In January, the average sunshine duration 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.

How high is the UV index in January?

In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unprotected exposure to 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
Alpine, NJ

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

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (35.4°F).

  • Average low temperature in January: 24.1°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).

Average pressure in January
Alpine, NJ

Average pressure in January - Alpine, 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
Alpine, NJ

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

The windiest months (with the highest average wind speed) are January and March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

Average humidity in January
Alpine, NJ

Average humidity in January - Alpine, 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 (68%).

Average rainfall in January
Alpine, NJ

Average rainfall in January - Alpine, NJ
  • Average rainfall in January: 2.2"

The wettest month (with the highest rainfall) is December (3.46").
The driest month (with the least rainfall) is September (1.73").

Average rainfall days in January
Alpine, NJ

Average rainfall days in January - Alpine, NJ
  • Average rainfall days in January: 8.2 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (8.2 days).

Average snowfall in January
Alpine, NJ

Average snowfall in January - Alpine, NJ
  • Average snowfall in January: 2.17"

The month with the highest snowfall is March (3.07").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Alpine, NJ

Average snowfall days in January - Alpine, NJ
  • Average snowfall days in January: 6.9 days

The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

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

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in January
Alpine, NJ

Average sunshine days in January - Alpine, NJ
  • Average sunshine days in January: 18.1 days

The months with the most sunshine days are January and November (18.1 days).
The months with the least sunshine days are April and June (12.7 days).

Average UV index in January
Alpine, NJ

Average UV index in January - Alpine, 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
Alpine, NJ

Average cloud cover in January - Alpine, 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 August (Cloud cover 32).

Average visibility in January
Alpine, NJ

Average visibility in January - Alpine, 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).

Alpine, New Jersey, USA

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