January weather forecast
Dunellen, NJ

Share

Weather in January

January, the same as December, is an icy winter month in Dunellen, New Jersey, with an average temperature ranging between min 23.2°F (-4.9°C) and max 35.6°F (2°C).

Temperature

January, with its average high-temperature of 35.6°F (2°C) and an average low-temperature of 23.2°F (-4.9°C), holds the record as the coldest month.

Humidity

The average relative humidity in January is 76%.

Rainfall

In Dunellen, during January, the rain falls for 8.4 days and regularly aggregates up to 2.17" (55mm) of precipitation. In Dunellen, during the entire year, the rain falls for 155.4 days and collects up to 31.18" (792mm) of precipitation.

Snowfall

Months with snowfall in Dunellen are January through May, October through December. In January, in Dunellen, it is snowing for 7.8 days. Throughout January, 2.48" (63mm) of snow is accumulated. In Dunellen, during the entire year, snow falls for 26.7 days and aggregates up to 12.68" (322mm) of snow.

Daylight

In Dunellen, the average length of the day in January is 9h and 40min.
On the first day of January in Dunellen, sunrise is at 7:21 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:13 pm EST.

Sunshine

The average sunshine in January in Dunellen 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 minimal health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: A typical high UV index of 2 in January suggests the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
[Resources]

Frequently asked questions

What are the coldest months in Dunellen?

January, recording an average high temperature of 35.6°F (2°C) and a low temperature of 23.2°F (-4.9°C), is Dunellen's coldest month.

How cold is January in Dunellen?

The average high-temperature, in January, in Dunellen, is 35.6°F (2°C), while the average low-temperature is 23.2°F (-4.9°C).

What is the average humidity in January in Dunellen?

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

How much does it rain in Dunellen in January?

In January, in Dunellen, the rain falls for 8.4 days. Throughout January, 2.17" (55mm) of precipitation is accumulated.

How many days does it snow in January in Dunellen?

In Dunellen, in January, snow falls for 7.8 days, with typically accumulated 2.48" (63mm) of snow.

How many hours of daylight does Dunellen have in January?

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

When are sunrise and sunset in January in Dunellen?

On the first day of January in Dunellen, sunrise is at 7:21 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:13 pm EST.

How long on average sun shines in January in Dunellen?

The average sunshine duration in January in Dunellen, New Jersey, is 5h.

What is the month with the lowest UV index in Dunellen?

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 Dunellen?

In January, the average daily maximum UV index in Dunellen is 2. A UV Index estimate of 2, and below, represents 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
Dunellen, NJ

Average temperature in January - Dunellen, NJ
  • Average high temperature in January: 35.6°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in January: 23.2°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

[Resources]

Average pressure in January
Dunellen, NJ

Average pressure in January - Dunellen, 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).

[Resources]

Average wind speed in January
Dunellen, NJ

Average wind speed in January - Dunellen, NJ
  • Average wind speed in January: 8.4mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

[Resources]

Average humidity in January
Dunellen, NJ

Average humidity in January - Dunellen, NJ
  • Average humidity in January: 76%

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

[Resources]

Average rainfall in January
Dunellen, NJ

Average rainfall in January - Dunellen, NJ
  • Average rainfall in January: 2.17"

The wettest month (with the highest rainfall) is December (3.31").
The driest month (with the least rainfall) is September (1.57").

[Resources]

Average rainfall days in January
Dunellen, NJ

Average rainfall days in January - Dunellen, NJ
  • Average rainfall days in January: 8.4 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (8.4 days).

[Resources]

Average snowfall in January
Dunellen, NJ

Average snowfall in January - Dunellen, NJ
  • Average snowfall in January: 2.48"

The month with the highest snowfall is March (4.06").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in January
Dunellen, NJ

Average snowfall days in January - Dunellen, NJ
  • Average snowfall days in January: 7.8 days

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

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

Average daylight in January / Average sunshine in January - Dunellen, 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 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

[Resources]

Average sunshine days in January
Dunellen, NJ

Average sunshine days in January - Dunellen, NJ
  • Average sunshine days in January: 17.8 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (11.6 days).

[Resources]

Average UV index in January
Dunellen, NJ

Average UV index in January - Dunellen, 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).

[Resources]

Average cloud cover in January
Dunellen, NJ

Average cloud cover in January - Dunellen, 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).

[Resources]

Average visibility in January
Dunellen, NJ

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

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

[Resources]

Dunellen, New Jersey, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location