January weather forecast
Salem, NJ

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Weather in January

January, like December, in Salem, New Jersey, is another cold winter month, with temperature in the range of an average low of 27°F (-2.8°C) and an average high of 38.7°F (3.7°C).

Temperature

January, known for its average high temperature of 38.7°F (3.7°C) and an average low temperature of 27°F (-2.8°C), is the coldest month.

Humidity

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

Rainfall

The month with the least rainfall is January, when the rain falls for 8.9 days and typically collects 1.77" (45mm) of precipitation.

Snowfall

Months with snowfall in Salem are January through May, November and December. In Salem, during January, snow falls for 4.2 days and regularly aggregates up to 1.81" (46mm) of snow. Throughout the year, there are 13.8 snowfall days, and 6.65" (169mm) of snow is accumulated.

Daylight

In January, the average length of the day in Salem is 9h and 45min.
On the first day of the month, sunrise is at 7:22 am and sunset at 4:48 pm. On the last day of January, sunrise is at 7:10 am and sunset at 5:20 pm EST.

Sunshine

The average sunshine in January in Salem is 5.1h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In January, an average UV index of 2 transforms into the following instructions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month in Salem?

Salem, New Jersey, experiences its lowest temperatures in January, with an average peak of 38.7°F (3.7°C) and a low of 27°F (-2.8°C).

Is it cold in Salem during January?

The average high-temperature, in January, in Salem, is 38.7°F (3.7°C), while the average low-temperature is 27°F (-2.8°C).

What is the average humidity in January in Salem?

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

What is the driest month in Salem?

The month with the least rainfall in Salem, New Jersey, is January, when the rain falls for 8.9 days and typically collects 1.77" (45mm) of precipitation.

How much does it rain in Salem in January?

In January, the rain falls for 8.9 days. Throughout January, 1.77" (45mm) of precipitation is accumulated.

How much does it snow in Salem in January?

In Salem, New Jersey, in January, snow falls for 4.2 days, with typically accumulated 1.81" (46mm) of snow.

How many hours of daylight does Salem have in January?

In Salem, the average day length in January is 9h and 45min.

When is the sunrise / sunset in January in Salem?

On the first day of January, sunrise is at 7:22 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:20 pm EST.

How long on average sun shines in January in Salem?

In Salem, New Jersey, the average sunshine duration in January is 5.1h.

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

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Salem, New Jersey.

How high is the UV index in January in Salem?

In January, the average daily maximum UV index in Salem, New Jersey, is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe 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
Salem, NJ

Average temperature in January - Salem, NJ
  • Average high temperature in January: 38.7°F

The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in January: 27°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27°F).

Average pressure in January
Salem, NJ

Average pressure in January - Salem, NJ
  • Average pressure in January: 30.09"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in January
Salem, NJ

Average wind speed in January - Salem, NJ
  • Average wind speed in January: 8.8mph

The windiest months (with the highest average wind speed) are February, March and April (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in January
Salem, NJ

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

The months with the highest relative humidity are May, June, September and October (77%).
The month with the lowest relative humidity is April (72%).

Average rainfall in January
Salem, NJ

Average rainfall in January - Salem, NJ
  • Average rainfall in January: 1.77"

The wettest month (with the highest rainfall) is August (3.23").
The driest month (with the least rainfall) is January (1.77").

Average rainfall days in January
Salem, NJ

Average rainfall days in January - Salem, NJ
  • Average rainfall days in January: 8.9 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is November (8 days).

Average snowfall in January
Salem, NJ

Average snowfall in January - Salem, NJ
  • Average snowfall in January: 1.81"

The month with the highest snowfall is March (2.32").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in January
Salem, NJ

Average snowfall days in January - Salem, NJ
  • Average snowfall days in January: 4.2 days

The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in January / Average sunshine in January - Salem, NJ
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in January: 5h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in January
Salem, NJ

Average sunshine days in January - Salem, NJ
  • Average sunshine days in January: 18.7 days

The month with the most sunshine days is November (20.6 days).
The months with the least sunshine days are May and July (11.8 days).

Average UV index in January
Salem, NJ

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

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in January
Salem, NJ

Average cloud cover in January - Salem, NJ
  • Average cloud cover in January: 44

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in January
Salem, NJ

Average visibility in January - Salem, 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).

Salem, New Jersey, USA

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