January weather forecast and climate
Cedar Grove, NJ

January, the same as December, is a wintry winter month in Cedar Grove, New Jersey, with average temperature ranging between max 35.2°F (1.8°C) and min 23.9°F (-4.5°C).

Temperature

January is the coldest month, with an average high-temperature of 35.2°F (1.8°C) and an average low-temperature of 23.9°F (-4.5°C).

Humidity

In January, the average relative humidity is 75%.

Rainfall

The month with the least rainfall in Cedar Grove is January when the rain falls for 7.6 days and typically collects 1.38" (35mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Cedar Grove. In January, in Cedar Grove, it is snowing for 5.8 days. Throughout January, 1.65" (42mm) of snow is accumulated. In Cedar Grove, during the entire year, snow falls for 22.1 days, and aggregates up to 8.9" (226mm) of snow.

Daylight

The average length of the day in January is 9.6h.

Sunshine

In January, the average sunshine 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 in Cedar Grove. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV rays for the average person.
Note: In January, the average maximum UV index of 2 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the coldest month in Cedar Grove?

With an average high-temperature of 35.2°F (1.8°C) and an average low-temperature of 23.9°F (-4.5°C), January is the coldest month in Cedar Grove, New Jersey.

What is the temperature in January in Cedar Grove?

In January, in Cedar Grove, New Jersey, the average high-temperature is 35.2°F (1.8°C), and the average low-temperature is 23.9°F (-4.5°C).

What is the average humidity in January in Cedar Grove?

The average relative humidity in January in Cedar Grove is 75%.

How much does it rain in Cedar Grove in January?

In January, the rain falls for 7.6 days. Throughout January, 1.38" (35mm) of precipitation is accumulated.

What is the driest month in Cedar Grove?

The month with the least rainfall in Cedar Grove, New Jersey, is January when the rain falls for 7.6 days and typically collects 1.38" (35mm) of precipitation.

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

In January, in Cedar Grove, it is snowing for 5.8 days. Throughout January, 1.65" (42mm) of snow is accumulated.

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

In Cedar Grove, New Jersey, the average length of the day in January is 9.6h.

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

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

What are the months with the lowest UV index in Cedar Grove?

Months with the lowest UV index in Cedar Grove are January through March, November and December, with an average maximum UV index of 2.

What is the UV index intensity in January in Cedar Grove?

The average daily maximum UV index in January in Cedar Grove is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in January - Cedar Grove, NJ
  • Average high temperature in January: 1.8°C

The warmest month (with the highest average high temperature) is July (29°C).
The month with the lowest average high temperature is January (1.8°C).

  • Average low temperature in January: -4.5°C

The month with the highest average low temperature is July (19.8°C).
The coldest month (with the lowest average low temperature) is January (-4.5°C).

Average pressure in January - Cedar Grove, NJ
  • Average pressure in January: 1018.1mbar

The month with the highest atmospheric pressure is November (1019.5mbar).
The month with the lowest atmospheric pressure is June (1013.6mbar).

Average wind speed in January - Cedar Grove, NJ
  • Average wind speed in January: 14.1km/h

The windiest months (with the highest average wind speed) are January and March (14.1km/h).
The calmest month (with the lowest average wind speed) is July (9.2km/h).

Average humidity in January - Cedar Grove, NJ
  • Average humidity in January: 75%

The month with the highest relative humidity is February (78%).
Months with the lowest relative humidity are April and August (72%).

Average rainfall in January - Cedar Grove, NJ
  • Average rainfall in January: 35mm

The wettest month (with the highest rainfall) is July (78mm).
The driest month (with the least rainfall) is January (35mm).

Average rainfall days in January - Cedar Grove, NJ
  • Average rainfall days in January: 7.6 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (7.6 days).

Average snowfall in January - Cedar Grove, NJ
  • Average snowfall in January: 42mm

The month with the highest snowfall is March (83mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in January - Cedar Grove, NJ
  • Average snowfall days in January: 5.8 days

The month with the highest number of snowfall days is February (6.8 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in January / Average sunshine in January - Cedar Grove, NJ
  • Average daylight in January: 9.6h

The month with the longest days is June (Average daylight: 15.1h).
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: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.7h).

Average sunshine days in January - Cedar Grove, NJ
  • Average sunshine days in January: 19.3 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (10.7 days).

Average UV index in January - Cedar Grove, 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).

Average cloud cover in January - Cedar Grove, NJ
  • Average cloud cover in January: 44

Months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in January - Cedar Grove, NJ
  • Average visibility in January: 9km

Months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is May (8km).