January weather forecast and climate
Wyckoff, NJ

January, the same as December, is a wintry winter month in Wyckoff, New Jersey, with average temperature varying between 34.5°F (1.4°C) and 21.6°F (-5.8°C).

Temperature

January is the coldest month, with an average high-temperature of 34.5°F (1.4°C) and an average low-temperature of 21.6°F (-5.8°C).

Humidity

The average relative humidity in Wyckoff is 77%.

Rainfall

In January, in Wyckoff, the rain falls for 6.6 days. Throughout January, 1.54" (39mm) of precipitation is accumulated. Throughout the year, in Wyckoff, there are 148.6 rainfall days, and 26.18" (665mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Wyckoff, during January, snow falls for 6.4 days and regularly aggregates up to 3.43" (87mm) of snow. In Wyckoff, during the entire year, snow falls for 25.5 days, and aggregates up to 15.83" (402mm) of snow.

Daylight

In Wyckoff, the average length of the day in January is 9.6h.

Sunshine

The average sunshine in January is 4.8h.

UV index

Months with the lowest UV index in Wyckoff 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 low threat to health from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 2 in January interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the coldest month in Wyckoff?

January is the coldest month in Wyckoff, with an average high-temperature of 34.5°F (1.4°C) and an average low-temperature of 21.6°F (-5.8°C).

What is the temperature in January in Wyckoff?

In January, in Wyckoff, the average high-temperature is 34.5°F (1.4°C), and the average low-temperature is 21.6°F (-5.8°C).

What is the average humidity in January in Wyckoff?

The average relative humidity in January is 77%.

How many days does it rain in January in Wyckoff?

In Wyckoff, New Jersey, during January, the rain falls for 6.6 days and regularly aggregates up to 1.54" (39mm) of precipitation.

How much does it snow in Wyckoff in January?

In Wyckoff, New Jersey, during January, snow falls for 6.4 days and regularly aggregates up to 3.43" (87mm) of snow.

What is the average length of the day in January in Wyckoff?

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

How many hours of sunshine does Wyckoff have in January?

In January, the average sunshine in Wyckoff is 4.8h.

When is the lowest UV index in Wyckoff?

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

What is the UV index reading in January in Wyckoff?

In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health threat from the exposure to the Sun's UV rays.
Average temperature in January - Wyckoff, NJ
  • Average high temperature in January: 1.4°C

The warmest month (with the highest average high temperature) is July (28.8°C).
The month with the lowest average high temperature is January (1.4°C).

  • Average low temperature in January: -5.8°C

The month with the highest average low temperature is July (18.1°C).
The coldest month (with the lowest average low temperature) is January (-5.8°C).

Average pressure in January - Wyckoff, NJ
  • Average pressure in January: 1018mbar

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 - Wyckoff, NJ
  • Average wind speed in January: 12.7km/h

The windiest month (with the highest average wind speed) is March (12.9km/h).
The calmest month (with the lowest average wind speed) is August (8.2km/h).

Average humidity in January - Wyckoff, NJ
  • Average humidity in January: 77%

Months with the highest relative humidity are February and December (80%).
Months with the lowest relative humidity are April, July and August (74%).

Average rainfall in January - Wyckoff, NJ
  • Average rainfall in January: 39mm

The wettest month (with the highest rainfall) is July (74mm).
The driest month (with the least rainfall) is September (38mm).

Average rainfall days in January - Wyckoff, NJ
  • Average rainfall days in January: 6.6 days

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (6.6 days).

Average snowfall in January - Wyckoff, NJ
  • Average snowfall in January: 87mm

The month with the highest snowfall is March (108mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in January - Wyckoff, NJ
  • Average snowfall days in January: 6.4 days

The month with the highest number of snowfall days is February (7.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January / Average sunshine in January - Wyckoff, 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: 4.8h

The month with the most sunshine is July (Average sunshine: 10.2h).
The month with the least sunshine is February (Average sunshine: 4.4h).

Average sunshine days in January - Wyckoff, NJ
  • Average sunshine days in January: 19.2 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.9 days).

Average UV index in January - Wyckoff, 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 - Wyckoff, NJ
  • Average cloud cover in January: 47

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in January - Wyckoff, NJ
  • Average visibility in January: 9km

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