December weather forecast
Briarcliff Manor, NY

Weather in December

The first month of the winter, December, is still a cold month in Briarcliff Manor, New York, with an average temperature fluctuating between 30.2°F (-1°C) and 40.1°F (4.5°C).

Temperature

In Briarcliff Manor, New York, the average high-temperature in December decreases from a fresh 50.4°F (10.2°C) in November to a wintry 40.1°F (4.5°C). In Briarcliff Manor, New York, the average low-temperature is 30.2°F (-1°C).

Humidity

February and December, with an average relative humidity of 78%, are the most humid months.

Rainfall

In Briarcliff Manor, New York, during December, the rain falls for 9.4 days and regularly aggregates up to 2.56" (65mm) of precipitation. Throughout the year, in Briarcliff Manor, there are 144.6 rainfall days, and 25.51" (648mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Briarcliff Manor, snow falls for 3.2 days, with typically accumulated 1.89" (48mm) of snow. Throughout the year, in Briarcliff Manor, there are 20.6 snowfall days, and 10.12" (257mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 16min of daylight.
On the first day of December, sunrise is at 7:01 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:36 pm EST.

Sunshine

In December, the average sunshine in Briarcliff Manor is 4.9h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 2 in December interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Briarcliff Manor?

In December, the average high-temperature is 40.1°F (4.5°C), and the average low-temperature is 30.2°F (-1°C). in August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 87.8°F (31°C).

What are the most humid months in Briarcliff Manor?

February and December, with an average relative humidity of 78%, are most humid months in Briarcliff Manor.

What is the average humidity in December in Briarcliff Manor?

In Briarcliff Manor, New York, the average relative humidity in December is 78%.

How much does it rain in Briarcliff Manor in December?

In Briarcliff Manor, in December, it is raining for 9.4 days, with typically 2.56" (65mm) of accumulated precipitation.

How much does it snow in Briarcliff Manor in December?

In Briarcliff Manor, in December, snow falls for 3.2 days, with typically accumulated 1.89" (48mm) of snow.

What is the month with the shortest days in Briarcliff Manor?

December has the shortest days of the year, with an average of 9h and 16min of daylight.

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

The average day length in December is 9h and 16min.

When is the sunrise / sunset in December in Briarcliff Manor?

On the first day of December in Briarcliff Manor, sunrise is at 7:01 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:36 pm EST.

How many hours of sunshine does Briarcliff Manor have in December?

The average sunshine duration in December is 4.9h.

When is the lowest UV index in Briarcliff Manor?

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

How high is the UV index in December in Briarcliff Manor?

In Briarcliff Manor, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes 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
Briarcliff Manor, NY

Average temperature in December - Briarcliff Manor, NY
  • Average high temperature in December: 40.1°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (34.9°F).

  • Average low temperature in December: 30.2°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

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Average pressure in December
Briarcliff Manor, NY

Average pressure in December - Briarcliff Manor, NY
  • Average pressure in December: 30.07"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Briarcliff Manor, NY

Average wind speed in December - Briarcliff Manor, NY
  • Average wind speed in December: 7.5mph

The windiest months (with the highest average wind speed) are January and March (8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in December
Briarcliff Manor, NY

Average humidity in December - Briarcliff Manor, NY
  • Average humidity in December: 78%

The months with the highest relative humidity are February and December (78%).
The months with the lowest relative humidity are April, July and August (72%).

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Average rainfall in December
Briarcliff Manor, NY

Average rainfall in December - Briarcliff Manor, NY
  • Average rainfall in December: 2.56"

The wettest month (with the highest rainfall) is July (2.87").
The driest month (with the least rainfall) is February (1.5").

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Average rainfall days in December
Briarcliff Manor, NY

Average rainfall days in December - Briarcliff Manor, NY
  • Average rainfall days in December: 9.4 days

The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is January (6 days).

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Average snowfall in December
Briarcliff Manor, NY

Average snowfall in December - Briarcliff Manor, NY
  • Average snowfall in December: 1.89"

The month with the highest snowfall is March (3.31").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Briarcliff Manor, NY

Average snowfall days in December - Briarcliff Manor, NY
  • Average snowfall days in December: 3.2 days

The month with the highest number of snowfall days is February (5.8 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
Briarcliff Manor, NY

Average daylight in December / Average sunshine in December - Briarcliff Manor, NY
  • Average daylight in December: 9h and 16min

The month with the longest days is June (Average daylight: 15h and 5min).
The month with the shortest days is December (Average daylight: 9h and 16min).

  • Average sunshine in December: 4h and 54min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in December
Briarcliff Manor, NY

Average sunshine days in December - Briarcliff Manor, NY
  • Average sunshine days in December: 19.5 days

The month with the most sunshine days is November (20 days).
The months with the least sunshine days are June and July (12.3 days).

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Average UV index in December
Briarcliff Manor, NY

Average UV index in December - Briarcliff Manor, NY
  • 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, March, November and December (UV index 2).

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Average cloud cover in December
Briarcliff Manor, NY

Average cloud cover in December - Briarcliff Manor, NY
  • Average cloud cover in December: 48

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

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Average visibility in December
Briarcliff Manor, NY

Average visibility in December - Briarcliff Manor, NY
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

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