December weather forecast
Cookstown, NJ

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Weather in December

The first month of the winter, December, is also a frosty month in Cookstown, New Jersey, with an average temperature ranging between min 32.7°F (0.4°C) and max 44.2°F (6.8°C).

Temperature

December is marked by a subtle drop in average high-temperatures, transitioning from a fresh 52.7°F (11.5°C) in November to a frosty 44.2°F (6.8°C). In the month of December, Cookstown's average low-temperature falls to a cold 32.7°F (0.4°C).

Humidity

In December, the average relative humidity in Cookstown is 78%.

Rainfall

December is the month with the most rainfall in Cookstown, New Jersey. Rain falls for 10.9 days and accumulates 3.7" (94mm) of precipitation.

Snowfall

Months with snowfall in Cookstown are January through May, October through December. In Cookstown, in December, snow falls for 3.6 days, with typically accumulated 1.5" (38mm) of snow. Throughout the year, in Cookstown, there are 19.6 snowfall days, and 10.63" (270mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:01 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:43 pm EST.

Sunshine

The average sunshine in December in Cookstown is 5h.

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 value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 2 during December translates into the following directions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
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Frequently asked questions

Is December cold in Cookstown?

The high-temperature during December is 44.2°F (6.8°C) and the low-temperature is 32.7°F (0.4°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 89.6°F (32°C).

What is the average humidity in December in Cookstown?

In December, the average relative humidity is 78%.

What is the wettest month in Cookstown?

December is the month with the most rainfall. Rain falls for 10.9 days and accumulates 3.7" (94mm) of precipitation.

How many days does it rain in December in Cookstown?

In Cookstown, New Jersey, in December, during 10.9 rainfall days, 3.7" (94mm) of precipitation is typically accumulated.

How many days does it snow in December in Cookstown?

In Cookstown, during December, snow falls for 3.6 days and regularly aggregates up to 1.5" (38mm) of snow.

What is the month with the shortest days in Cookstown?

The month with the shortest days in Cookstown, New Jersey, is December, with an average of 9h and 24min of daylight.

What is the average length of the day in December in Cookstown?

In Cookstown, New Jersey, the average day length in December is 9h and 23min.

When is the sunrise / sunset in December in Cookstown?

In December, on the first day of the month, sunrise is at 7:01 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:43 pm EST.

How long on average sun shines in December in Cookstown?

The average sunshine duration in December in Cookstown, New Jersey, is 5h.

What are the months with the lowest UV index in Cookstown?

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

How high is the UV index in December in Cookstown?

In Cookstown, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat 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 December
Cookstown, NJ

Average temperature in December - Cookstown, NJ
  • Average high temperature in December: 44.2°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in December: 32.7°F

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

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Average pressure in December
Cookstown, NJ

Average pressure in December - Cookstown, NJ
  • Average pressure in December: 30.09"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).

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Average wind speed in December
Cookstown, NJ

Average wind speed in December - Cookstown, NJ
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in December
Cookstown, NJ

Average humidity in December - Cookstown, NJ
  • Average humidity in December: 78%

The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in December
Cookstown, NJ

Average rainfall in December - Cookstown, NJ
  • Average rainfall in December: 3.7"

The wettest month (with the highest rainfall) is December (3.7").
The driest month (with the least rainfall) is September (1.89").

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Average rainfall days in December
Cookstown, NJ

Average rainfall days in December - Cookstown, NJ
  • Average rainfall days in December: 10.9 days

The months with the highest number of rainy days are May and July (17 days).
The month with the least rainy days is November (9 days).

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Average snowfall in December
Cookstown, NJ

Average snowfall in December - Cookstown, NJ
  • Average snowfall in December: 1.5"

The month with the highest snowfall is March (3.54").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Cookstown, NJ

Average snowfall days in December - Cookstown, NJ
  • Average snowfall days in December: 3.6 days

The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Cookstown, NJ

Average daylight in December / Average sunshine in December - Cookstown, NJ
  • Average daylight in December: 9h and 2min

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 December: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in December
Cookstown, NJ

Average sunshine days in December - Cookstown, NJ
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.8 days).

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Average UV index in December
Cookstown, NJ

Average UV index in December - Cookstown, NJ
  • Average UV index in December: 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 December
Cookstown, NJ

Average cloud cover in December - Cookstown, NJ
  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 33).

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Average visibility in December
Cookstown, NJ

Average visibility in December - Cookstown, NJ
  • Average visibility in December: 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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Cookstown, New Jersey, USA

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