January weather forecast and climate
Sewaren, NJ

Weather in January

January, like December, in Sewaren, New Jersey, is another cold winter month, with average temperature ranging between min 25.9°F (-3.4°C) and max 36.9°F (2.7°C).

Temperature

January is the coldest month, with an average high-temperature of 36.9°F (2.7°C) and an average low-temperature of 25.9°F (-3.4°C).

Humidity

The average relative humidity in Sewaren is 74%.

Rainfall

In January, in Sewaren, the rain falls for 9.3 days. Throughout January, 2.01" (51mm) of precipitation is accumulated. In Sewaren, New Jersey, during the entire year, the rain falls for 157.5 days and collects up to 31.42" (798mm) of precipitation.

Snowfall

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

Ocean temperature

In Sewaren, New Jersey,, the average water temperature is 41.7°F (5.4°C).
Note: Swimming in 41.7°F (5.4°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

In Sewaren, the average length of the day is 9.7h.

Sunshine

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. A UV Index estimate of 2, and below, represents a minimal health hazard from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 2 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 Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for 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.
[Resources]

FAQ

What is the coldest month in Sewaren?

The coldest month in Sewaren, New Jersey, is January, with an average high-temperature of 36.9°F (2.7°C) and an average low-temperature of 25.9°F (-3.4°C).

What is the average humidity in January in Sewaren?

In January, the average relative humidity in Sewaren is 74%.

How many days does it rain in January in Sewaren?

In Sewaren, New Jersey, in January, during 9.3 rainfall days, 2.01" (51mm) of precipitation is typically accumulated.

How many days does it snow in January in Sewaren?

In Sewaren, during January, snow falls for 5.8 days and regularly aggregates up to 1.57" (40mm) of snow.

How cold is the water in January in Sewaren?

In Sewaren, in January, the average water temperature is 41.7°F (5.4°C). Swimming in 41.7°F (5.4°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does Sewaren have in January?

In January, the average length of the day in Sewaren is 9.7h.

How long on average sun shines in January in Sewaren?

In Sewaren, the average sunshine in January is 5.1h.

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

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

What is the UV index intensity in January in Sewaren?

In January, the average daily maximum UV index in Sewaren, New Jersey, is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to the Sun's UV rays.

Average temperature in January
Sewaren, NJ

Average temperature in January - Sewaren, 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).

[Resources]

Average pressure in January
Sewaren, NJ

Average pressure in January - Sewaren, NJ
  • Average pressure in January: 30.07"

The month with the highest atmospheric pressure is November (30.11").
The month with the lowest atmospheric pressure is June (29.93").

[Resources]

Average wind speed in January
Sewaren, NJ

Average wind speed in January - Sewaren, 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).

[Resources]

Average humidity in January
Sewaren, NJ

Average humidity in January - Sewaren, NJ
  • Average humidity in January: 74%

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

[Resources]

Average rainfall in January
Sewaren, NJ

Average rainfall in January - Sewaren, 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").

[Resources]

Average rainfall days in January
Sewaren, NJ

Average rainfall days in January - Sewaren, 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).

[Resources]

Average snowfall in January
Sewaren, NJ

Average snowfall in January - Sewaren, NJ
  • Average snowfall in January: 1.57"

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

[Resources]

Average snowfall days in January
Sewaren, NJ

Average snowfall days in January - Sewaren, NJ
  • Average snowfall days in January: 5.8 days

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

[Resources]

Average sea temperature in January
Sewaren, NJ

Average sea temperature in January - Sewaren, 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).

[Resources]

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

Average daylight in January / Average sunshine in January - Sewaren, NJ
  • Average daylight in January: 9.7h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in January: 5.1h

The month with the most sunshine is July (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.7h).

[Resources]

Average sunshine days in January
Sewaren, NJ

Average sunshine days in January - Sewaren, 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).

[Resources]

Average UV index in January
Sewaren, NJ

Average UV index in January - Sewaren, NJ
  • Average UV index in January: 2

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

[Resources]

Average cloud cover in January
Sewaren, NJ

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

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).

[Resources]

Average visibility in January
Sewaren, NJ

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

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

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location