December weather forecast
Cranmoor Manor, NJ

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Weather in December

December, the first month of the winter in Cranmoor Manor, is still a chilly month, with an average temperature ranging between max 45°F (7.2°C) and min 36.1°F (2.3°C).

Temperature

Cranmoor Manor's transition into December involves a gentle shift in temperature, receding from a cool 53.1°F (11.7°C) in November to a frosty 45°F (7.2°C). Cranmoor Manor's nighttime temperature in December consistently rests at an icy 36.1°F (2.3°C).

Humidity

In Cranmoor Manor, the average relative humidity in December is 77%.

Rainfall

In December, the rain falls for 9.6 days. Throughout December, 1.5" (38mm) of precipitation is accumulated. Throughout the year, in Cranmoor Manor, there are 129.4 rainfall days, and 15.31" (389mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. December is the month with the most snowfall. Snow falls for 2.8 days and accumulates 0.75" (19mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:59 am and sunset at 4:32 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:41 pm EST.

Sunshine

The average sunshine in December is 5.1h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, an average UV index of 2 transforms into the following instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December in Cranmoor Manor?

The average high-temperature and low-temperature during December are 45°F (7.2°C) and 36.1°F (2.3°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in July is calculated to be 86°F (30°C).

What is the average humidity in December?

In Cranmoor Manor, the average relative humidity in December is 77%.

How much does it rain in December?

In Cranmoor Manor, during December, the rain falls for 9.6 days and regularly aggregates up to 1.5" (38mm) of precipitation.

When does it snow the most?

December is the month with the most snowfall. Snow falls for 2.8 days and accumulates 0.75" (19mm) of snow.

How many days does it snow in December?

In Cranmoor Manor, in December, snow falls for 2.8 days, with typically accumulated 0.75" (19mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 24min of daylight.

How many hours of daylight does Cranmoor Manor have in December?

In Cranmoor Manor, the average day length in December is 9h and 23min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:59 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:41 pm EST.

How long on average sun shines in December?

In Cranmoor Manor, the average sunshine duration in December is 5.1h.

When is the lowest UV index?

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 Cranmoor Manor, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to the Sun's 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
Cranmoor Manor, NJ

Average temperature in December - Cranmoor Manor, NJ
  • Average high temperature in December: 45°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in December: 36.1°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

Average pressure in December
Cranmoor Manor, NJ

Average pressure in December - Cranmoor Manor, NJ
  • Average pressure in December: 30.08"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 December
Cranmoor Manor, NJ

Average wind speed in December - Cranmoor Manor, NJ
  • Average wind speed in December: 11.1mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).

Average humidity in December
Cranmoor Manor, NJ

Average humidity in December - Cranmoor Manor, NJ
  • Average humidity in December: 77%

The months with the highest relative humidity are May and June (80%).
The months with the lowest relative humidity are January, March and November (74%).

Average rainfall in December
Cranmoor Manor, NJ

Average rainfall in December - Cranmoor Manor, NJ
  • Average rainfall in December: 1.5"

The wettest month (with the highest rainfall) is July (1.97").
The driest month (with the least rainfall) is January (0.79").

Average rainfall days in December
Cranmoor Manor, NJ

Average rainfall days in December - Cranmoor Manor, NJ
  • Average rainfall days in December: 9.6 days

The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is January (6.9 days).

Average snowfall in December
Cranmoor Manor, NJ

Average snowfall in December - Cranmoor Manor, NJ
  • Average snowfall in December: 0.75"

The month with the highest snowfall is December (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Cranmoor Manor, NJ

Average snowfall days in December - Cranmoor Manor, NJ
  • Average snowfall days in December: 2.8 days

The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Cranmoor Manor, NJ

Average daylight in December / Average sunshine in December - Cranmoor Manor, 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 1min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in December
Cranmoor Manor, NJ

Average sunshine days in December - Cranmoor Manor, NJ
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (13.9 days).

Average UV index in December
Cranmoor Manor, NJ

Average UV index in December - Cranmoor Manor, NJ
  • Average UV index in December: 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, November and December (UV index 2).

Average cloud cover in December
Cranmoor Manor, NJ

Average cloud cover in December - Cranmoor Manor, NJ
  • Average cloud cover in December: 46

The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 28).

Average visibility in December
Cranmoor Manor, NJ

Average visibility in December - Cranmoor Manor, 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).

Cranmoor Manor, New Jersey, USA

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