January weather forecast
Cooks Mills, NJ

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Weather in January

January, like December, in Cooks Mills, New Jersey, is an icy winter month, with temperature in the range of an average low of 28.9°F (-1.7°C) and an average high of 38.3°F (3.5°C).

Temperature

Cooks Mills's coldest temperatures are experienced in January, with average high temperatures of 38.3°F (3.5°C) and lows of 28.9°F (-1.7°C).

Humidity

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

Rainfall

The month with the least rainfall is January, when the rain falls for 6.9 days and typically collects 0.55" (14mm) of precipitation.

Snowfall

Months with snowfall in Cooks Mills, New Jersey, are January through March, October and December. In Cooks Mills, during January, snow falls for 4.2 days and regularly aggregates up to 0.28" (7mm) of snow. In Cooks Mills, during the entire year, snow falls for 14.6 days and aggregates up to 1.38" (35mm) of snow.

Daylight

The average length of the day in January is 9h and 41min.
On the first day of January, sunrise is at 7:19 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:13 pm EST.

Sunshine

In Cooks Mills, the average sunshine in January 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. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays 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. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

The coldest period in Cooks Mills tends to be January, when average temperatures fluctuate between a high of 38.3°F (3.5°C) and a low of 28.9°F (-1.7°C).

Is January cold?

In January, in Cooks Mills, the average high-temperature is 38.3°F (3.5°C), and the average low-temperature is 28.9°F (-1.7°C).

What is the average humidity in January?

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

What is the driest month?

The month with the least rainfall in Cooks Mills is January, when the rain falls for 6.9 days and typically collects 0.55" (14mm) of precipitation.

How much does it rain in January?

In Cooks Mills, during January, the rain falls for 6.9 days and regularly aggregates up to 0.55" (14mm) of precipitation.

How many days does it snow in January?

In Cooks Mills, New Jersey, in January, during 4.2 snowfall days, 0.28" (7mm) of snow is typically accumulated.

How many hours of daylight does Cooks Mills have in January?

In Cooks Mills, the average day length in January is 9h and 41min.

What time are sunrise and sunset in January?

On the first day of January, sunrise is at 7:19 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:13 pm EST.

How many hours of sunshine does Cooks Mills have in January?

The average sunshine duration in January is 5.1h.

When is the lowest UV index?

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

What is the UV index reading in January?

In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to 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
Cooks Mills, NJ

Average temperature in January - Cooks Mills, NJ
  • Average high temperature in January: 38.3°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (38.3°F).

  • Average low temperature in January: 28.9°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).

Average pressure in January
Cooks Mills, NJ

Average pressure in January - Cooks Mills, NJ
  • Average pressure in January: 30.06"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in January
Cooks Mills, NJ

Average wind speed in January - Cooks Mills, NJ
  • Average wind speed in January: 12.6mph

The windiest month (with the highest average wind speed) is January (12.6mph).
The calmest month (with the lowest average wind speed) is July (8mph).

Average humidity in January
Cooks Mills, NJ

Average humidity in January - Cooks Mills, NJ
  • Average humidity in January: 74%

The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is November (73%).

Average rainfall in January
Cooks Mills, NJ

Average rainfall in January - Cooks Mills, NJ
  • Average rainfall in January: 0.55"

The wettest month (with the highest rainfall) is July (1.38").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days in January
Cooks Mills, NJ

Average rainfall days in January - Cooks Mills, NJ
  • Average rainfall days in January: 6.9 days

The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is November (6.8 days).

Average snowfall in January
Cooks Mills, NJ

Average snowfall in January - Cooks Mills, NJ
  • Average snowfall in January: 0.28"

The month with the highest snowfall is December (0.47").
The months with the least snowfall are April, May, June, July, August, September and November (0").

Average snowfall days in January
Cooks Mills, NJ

Average snowfall days in January - Cooks Mills, 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 May, June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Cooks Mills, NJ

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

The month with the longest days is June (Average daylight: 15h and 0min).
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: 4h and 48min).

Average sunshine days in January
Cooks Mills, NJ

Average sunshine days in January - Cooks Mills, NJ
  • Average sunshine days in January: 21.4 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (14.3 days).

Average UV index in January
Cooks Mills, NJ

Average UV index in January - Cooks Mills, NJ
  • Average UV index in January: 2

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

Average cloud cover in January
Cooks Mills, NJ

Average cloud cover in January - Cooks Mills, NJ
  • Average cloud cover in January: 43

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in January
Cooks Mills, NJ

Average visibility in January - Cooks Mills, 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).

Cooks Mills, New Jersey, USA

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