January weather forecast
Blackwood, NJ

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Weather in January

January, like December, in Blackwood, New Jersey, is a wintry winter month, with an average temperature varying between 37.9°F (3.3°C) and 26.1°F (-3.3°C).

Temperature

January is the coldest month, exhibiting average temperatures of 37.9°F (3.3°C) at the peak and 26.1°F (-3.3°C) at the base.

Humidity

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

Rainfall

January and September are months with the least rain when the rain falls for 6.5 days and typically aggregates up to 0.67" (17mm) of rain.

Snowfall

Months with snowfall in Blackwood are January through March, May, November and December. In January, it is snowing for 3.5 days. Throughout January, 0.91" (23mm) of snow is accumulated. Throughout the year, there are 11.4 snowfall days, and 3.11" (79mm) of snow is accumulated.

Daylight

In January, the average length of the day in Blackwood is 9h and 44min.
On the first day of the month, sunrise is at 7:21 am and sunset at 4:45 pm. On the last day of January, sunrise is at 7:09 am and sunset at 5:17 pm EST.

Sunshine

In January, the average sunshine is 5.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Blackwood. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: In January, an average UV index of 2 transforms into the following instructions:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

Blackwood experiences its lowest temperatures in January, with an average peak of 37.9°F (3.3°C) and a low of 26.1°F (-3.3°C).

How cold does it get in January?

The average high-temperature and low-temperature during January are 37.9°F (3.3°C) and 26.1°F (-3.3°C) respectively.

What is the average humidity in January?

The average relative humidity in January is 74%.

What is the driest month?

January and September are months with the least rain when the rain falls for 6.5 days and typically aggregates up to 0.67" (17mm) of rain.

How many days does it rain in January?

In Blackwood, in January, during 6.5 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.

How many days does it snow in January?

In Blackwood, in January, during 3.5 snowfall days, 0.91" (23mm) of snow is typically accumulated.

What is the average length of the day in January?

In January, the average day length in Blackwood is 9h and 44min.

What time are sunrise and sunset in January?

On the first day of January in Blackwood, sunrise is at 7:21 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 5:17 pm EST.

How many hours of sunshine does Blackwood have in January?

In January, the average sunshine duration is 5.1h.

What are the months with the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

What is the UV index reading in January?

The average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health risk 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
Blackwood, NJ

Average temperature in January - Blackwood, NJ
  • Average high temperature in January: 37.9°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in January: 26.1°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in January
Blackwood, NJ

Average pressure in January - Blackwood, NJ
  • Average pressure in January: 30.08"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
Blackwood, NJ

Average wind speed in January - Blackwood, NJ
  • Average wind speed in January: 8.1mph

The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in January
Blackwood, NJ

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

The month with the highest relative humidity is October (77%).
The month with the lowest relative humidity is April (71%).

Average rainfall in January
Blackwood, NJ

Average rainfall in January - Blackwood, NJ
  • Average rainfall in January: 0.67"

The wettest month (with the highest rainfall) is August (1.38").
The driest months (with the least rainfall) are January and September (0.67").

Average rainfall days in January
Blackwood, NJ

Average rainfall days in January - Blackwood, NJ
  • Average rainfall days in January: 6.5 days

The month with the highest number of rainy days is July (13.7 days).
The month with the least rainy days is January (6.5 days).

Average snowfall in January
Blackwood, NJ

Average snowfall in January - Blackwood, NJ
  • Average snowfall in January: 0.91"

The month with the highest snowfall is February (1.1").
The months with the least snowfall are April, June, July, August, September and October (0").

Average snowfall days in January
Blackwood, NJ

Average snowfall days in January - Blackwood, NJ
  • Average snowfall days in January: 3.5 days

The month with the highest number of snowfall days is January (3.5 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
Blackwood, NJ

Average daylight in January / Average sunshine in January - Blackwood, NJ
  • Average daylight in January: 9h and 4min

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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in January
Blackwood, NJ

Average sunshine days in January - Blackwood, NJ
  • Average sunshine days in January: 20.8 days

The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is July (14.3 days).

Average UV index in January
Blackwood, NJ

Average UV index in January - Blackwood, 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, November and December (UV index 2).

Average cloud cover in January
Blackwood, NJ

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

The months with the most cloud cover are February and March (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 31).

Average visibility in January
Blackwood, NJ

Average visibility in January - Blackwood, 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).

Blackwood, New Jersey, USA

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