January weather forecast
Cedar Brook, NJ

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Weather in January

January, the same as December, is a wintry winter month in Cedar Brook, New Jersey, with an average temperature varying between 26.8°F (-2.9°C) and 38.5°F (3.6°C).

Temperature

January, with average temperatures reaching a high of 38.5°F (3.6°C) and a low of 26.8°F (-2.9°C), is the coldest month.

Humidity

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

Rainfall

January is the month with the least rainfall in Cedar Brook. Rain falls for 6.5 days and accumulates 0.63" (16mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. The months with the most snowfall in Cedar Brook are January and February, with an average 1.06" (27mm) of accumulated snow.

Daylight

The average length of the day in January in Cedar Brook is 9h and 44min.
On the first day of the month, sunrise is at 7:20 am and sunset at 4:45 pm. On the last day of January, in Cedar Brook, sunrise is at 7:08 am and sunset at 5:17 pm EST.

Sunshine

In Cedar Brook, the average sunshine in January 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. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 2 in January translates into these instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
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Frequently asked questions

What is the coldest month in Cedar Brook?

January tends to be the coldest month in Cedar Brook, New Jersey, with temperatures averaging a daily high of 38.5°F (3.6°C) and a low of 26.8°F (-2.9°C).

Is January cold in Cedar Brook?

The high-temperature, in January, in Cedar Brook, is 38.5°F (3.6°C), while the low-temperature averages to 26.8°F (-2.9°C).

What is the average humidity in January in Cedar Brook?

In January, the average relative humidity is 74%.

What is the driest month in Cedar Brook?

January is the month with the least rainfall. Rain falls for 6.5 days and accumulates 0.63" (16mm) of precipitation.

How many days does it rain in January in Cedar Brook?

In January, the rain falls for 6.5 days. Throughout January, 0.63" (16mm) of precipitation is accumulated.

What is the snowiest month in Cedar Brook?

The months with the most snowfall in Cedar Brook are January and February, with an average 1.06" (27mm) of accumulated snow.

How many days does it snow in January in Cedar Brook?

In Cedar Brook, in January, snow falls for 3.8 days, with typically accumulated 1.06" (27mm) of snow.

What is the average length of the day in January in Cedar Brook?

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

What time are sunrise and sunset in January in Cedar Brook?

On the first day of January in Cedar Brook, New Jersey, sunrise is at 7:20 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:17 pm EST.

How long on average sun shines in January in Cedar Brook?

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

What is the month with the lowest UV index in Cedar Brook?

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 in Cedar Brook?

The average daily maximum UV index in January in Cedar Brook is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
44.6°F 7°C
38.5°F 3.6°C
42.1°F 5.6°C
Average low temperature
33.8°F 1°C
26.8°F -2.9°C
28.9°F -1.7°C
Average pressure
30.09" 764mmHg
30.08" 764mmHg
30.05" 763mmHg
Average wind speed
7.8mph 12.6km/h
8.5mph 13.7km/h
8.6mph 13.8km/h
Average max. wind speed
8.5mph 13.7km/h
9.1mph 14.6km/h
9.3mph 15km/h
Average wind speed gusts
12.7mph 20.4km/h
13.7mph 22km/h
13.9mph 22.4km/h
Average humidity
77%
74%
76%
Average rainfall
1.3" 33mm
0.63" 16mm
0.87" 22mm
Average rainfall days
7.9
6.5
6.9
Average snowfall
0.28" 7mm
1.06" 27mm
1.06" 27mm
Average snowfall days
2.4
3.8
4
Average daylight
9h 2min
9h 4min
10h 4min
Average sunshine
5h 1min
5h 1min
5h 0min
Average sunshine days
21.1
21.1
18.1
Average UV index
2
2
2
Average cloud cover
45%
43%
46%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Cedar Brook, NJ

Average temperature in January - Cedar Brook, NJ
  • Average high temperature in January: 38.5°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (38.5°F).

  • Average low temperature in January: 26.8°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

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Average pressure in January
Cedar Brook, NJ

Average pressure in January - Cedar Brook, 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).

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Average wind speed in January
Cedar Brook, NJ

Average wind speed in January - Cedar Brook, NJ
  • Average wind speed in January: 8.5mph

The windiest months (with the highest average wind speed) are March and April (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

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Average humidity in January
Cedar Brook, NJ

Average humidity in January - Cedar Brook, NJ
  • Average humidity in January: 74%

The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in January
Cedar Brook, NJ

Average rainfall in January - Cedar Brook, NJ
  • Average rainfall in January: 0.63"

The wettest month (with the highest rainfall) is July (1.42").
The driest month (with the least rainfall) is January (0.63").

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Average rainfall days in January
Cedar Brook, NJ

Average rainfall days in January - Cedar Brook, NJ
  • Average rainfall days in January: 6.5 days

The month with the highest number of rainy days is July (13.5 days).
The month with the least rainy days is January (6.5 days).

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Average snowfall in January
Cedar Brook, NJ

Average snowfall in January - Cedar Brook, NJ
  • Average snowfall in January: 1.06"

The months with the highest snowfall are January and February (1.06").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in January
Cedar Brook, NJ

Average snowfall days in January - Cedar Brook, NJ
  • Average snowfall days in January: 3.8 days

The month with the highest number of snowfall days is February (4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in January /
Average sunshine in January
Cedar Brook, NJ

Average daylight in January / Average sunshine in January - Cedar Brook, 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 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in January
Cedar Brook, NJ

Average sunshine days in January - Cedar Brook, NJ
  • Average sunshine days in January: 21.1 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is July (13.9 days).

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Average UV index in January
Cedar Brook, NJ

Average UV index in January - Cedar Brook, 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).

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Average cloud cover in January
Cedar Brook, NJ

Average cloud cover in January - Cedar Brook, NJ
  • Average cloud cover in January: 43

The months with the most cloud cover are February and March (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 29).

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Average visibility in January
Cedar Brook, NJ

Average visibility in January - Cedar Brook, 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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Cedar Brook, New Jersey, USA

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