January weather forecast
Perth Amboy, NJ

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A scenic panorama of Perth Amboy Town in New Jersey, with the bright neon lights as the sun sets behind the colorful and heavy cloudy sky above
A scenic panorama of Perth Amboy Town in New Jersey, with the bright neon lights as the sun sets behind the colorful and heavy cloudy sky above

Weather in January

January's weather in Perth Amboy, New Jersey, sees cooler temperatures and an occasional snowfall. The average highest temperature recorded in this month is 36.9°F (2.7°C), while the lowest temperature tends to hover around 25.9°F (-3.4°C). There is also an increased chance of precipitation, with mild snowfall expected. Residents and visitors can expect brisk winds, so warm clothing is advisable. The sea temperature remains cold, making most water activities unadvisable at this time of year.

Temperature

January, characterized by an average high temperature of 36.9°F (2.7°C) and a low temperature of 25.9°F (-3.4°C), is generally the coldest month in Perth Amboy, New Jersey.

Humidity

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

Rainfall

In January, in Perth Amboy, the rain falls for 9.3 days. Throughout January, 2.01" (51mm) of precipitation is accumulated. Throughout the year, in Perth Amboy, New Jersey, there are 157.5 rainfall days, and 31.42" (798mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall in Perth Amboy. In Perth Amboy, New Jersey, in January, during 5.8 snowfall days, 1.57" (40mm) of snow is typically accumulated. In Perth Amboy, during the entire year, snow falls for 19.5 days and aggregates up to 8.35" (212mm) of snow.

Ocean temperature

In Perth Amboy, in January, the average water temperature is 41.7°F (5.4°C).
Note: It is advised against swimming in 41.7°F (5.4°C) when it drops below 50°F (10°C). Such temperatures can cause extreme cold shock, leading to hyperventilation.

Daylight

In Perth Amboy, the average length of the day in January is 9h and 40min.
On the first day of the month, sunrise is at 7:20 am and sunset at 4:40 pm. On the last day of January, in Perth Amboy, sunrise is at 7:07 am and sunset at 5:13 pm EST.

Sunshine

In Perth Amboy, the average sunshine in January is 5.1h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Perth Amboy. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.
Note: A maximum UV index of 2 in January translates into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Frequently asked questions

What month is the coldest in Perth Amboy?

January, known for its average high temperature of 36.9°F (2.7°C) and an average low temperature of 25.9°F (-3.4°C), is the coldest month in Perth Amboy, New Jersey.

How cold is January in Perth Amboy?

The high-temperature, in January, in Perth Amboy, is 36.9°F (2.7°C), while the low-temperature averages to 25.9°F (-3.4°C).

What is the average humidity in January in Perth Amboy?

The average relative humidity in January in Perth Amboy, New Jersey, is 74%.

How much does it rain in Perth Amboy in January?

In Perth Amboy, in January, it is raining for 9.3 days, with typically 2.01" (51mm) of accumulated precipitation.

How many days does it snow in January in Perth Amboy?

In Perth Amboy, in January, snow falls for 5.8 days, with typically accumulated 1.57" (40mm) of snow.

How cold is the water in January in Perth Amboy?

In January, the average ocean temperature in Perth Amboy, New Jersey, is 41.7°F (5.4°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What is the average length of the day in January in Perth Amboy?

In Perth Amboy, New Jersey, the average day length in January is 9h and 40min.

What time are sunrise and sunset in January in Perth Amboy?

In January, on the first day of the month, sunrise is at 7:20 am and sunset at 4:40 pm. On the last day of the month, in Perth Amboy, sunrise is at 7:07 am and sunset at 5:13 pm EST.

How long on average sun shines in January in Perth Amboy?

In January, the average sunshine duration in Perth Amboy is 5.1h.

When is the lowest UV index in Perth Amboy?

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 in Perth Amboy?

The average daily maximum UV index in January in Perth Amboy is 2. A UV Index value of 2, and less, symbolizes a low health risk from 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
Perth Amboy, NJ

Average temperature in January - Perth Amboy, NJ
  • Average high temperature in January: 36.9°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in January: 25.9°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).

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Average pressure in January
Perth Amboy, NJ

Average pressure in January - Perth Amboy, 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
Perth Amboy, NJ

Average wind speed in January - Perth Amboy, NJ
  • Average wind speed in January: 10.2mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

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Average humidity in January
Perth Amboy, NJ

Average humidity in January - Perth Amboy, NJ
  • Average humidity in January: 74%

The months with the highest relative humidity are February and May (77%).
The months with the lowest relative humidity are March, April, August and November (73%).

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Average rainfall in January
Perth Amboy, NJ

Average rainfall in January - Perth Amboy, NJ
  • Average rainfall in January: 2.01"

The wettest months (with the highest rainfall) are July and December (3.31").
The driest month (with the least rainfall) is September (1.81").

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Average rainfall days in January
Perth Amboy, NJ

Average rainfall days in January - Perth Amboy, NJ
  • Average rainfall days in January: 9.3 days

The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is January (9.3 days).

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Average snowfall in January
Perth Amboy, NJ

Average snowfall in January - Perth Amboy, NJ
  • Average snowfall in January: 1.57"

The month with the highest snowfall is March (3.39").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Perth Amboy, NJ

Average snowfall days in January - Perth Amboy, NJ
  • Average snowfall days in January: 5.8 days

The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average sea temperature in January
Perth Amboy, NJ

Average sea temperature in January - Perth Amboy, 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
Perth Amboy, NJ

Average daylight in January / Average sunshine in January - Perth Amboy, 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 42min).

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Average sunshine days in January
Perth Amboy, NJ

Average sunshine days in January - Perth Amboy, NJ
  • Average sunshine days in January: 17.3 days

The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (12.2 days).

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Average UV index in January
Perth Amboy, NJ

Average UV index in January - Perth Amboy, 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
Perth Amboy, NJ

Average cloud cover in January - Perth Amboy, NJ
  • Average cloud cover in January: 45

The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in January
Perth Amboy, NJ

Average visibility in January - Perth Amboy, 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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Perth Amboy, New Jersey, USA

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