December weather forecast
Nyack, NY

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Weather in December

December, the first month of the winter in Nyack, is still a cold month, with an average temperature ranging between min 30.7°F (-0.7°C) and max 41°F (5°C).

Temperature

With December's onset, the weather shows a temperature decrease, transitioning from a fresh 50.9°F (10.5°C) in November to a cold 41°F (5°C). Nyack, during December, witnesses an average low-temperature of 30.7°F (-0.7°C).

Humidity

The months with the highest humidity in Nyack, New York, are February and December, with an average relative humidity of 77%.

Rainfall

In Nyack, New York, during December, the rain falls for 10.4 days and regularly aggregates up to 3.11" (79mm) of precipitation. In Nyack, New York, during the entire year, the rain falls for 151.8 days and collects up to 30.79" (782mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Nyack, in December, during 3.5 snowfall days, 1.85" (47mm) of snow is typically accumulated. In Nyack, during the entire year, snow falls for 19 days and aggregates up to 9.41" (239mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 7:02 am and sunset at 4:27 pm. On the last day of December, sunrise is at 7:20 am and sunset at 4:37 pm EST.

Sunshine

The average sunshine in December is 4.9h.

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 reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 2 suggests these recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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Frequently asked questions

Is it cold in Nyack during December?

December temperatures vary between a high-temperature of 41°F (5°C) and a low-temperature of 30.7°F (-0.7°C). The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in August is computed to be 87.8°F (31°C).

What are the most humid months in Nyack?

The months with the highest humidity in Nyack, New York, are February and December, with an average relative humidity of 77%.

What is the average humidity in December in Nyack?

The average relative humidity in December in Nyack is 77%.

How much does it rain in Nyack in December?

In Nyack, in December, during 10.4 rainfall days, 3.11" (79mm) of precipitation is typically accumulated.

How many days does it snow in December in Nyack?

In Nyack, New York, in December, during 3.5 snowfall days, 1.85" (47mm) of snow is typically accumulated.

What is the month with the shortest days in Nyack?

With an average of 9h and 18min of daylight, December has the shortest days of the year in Nyack, New York.

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

In Nyack, the average day length in December is 9h and 17min.

When are sunrise and sunset in December in Nyack?

On the first day of December in Nyack, New York, sunrise is at 7:02 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:37 pm EST.

How many hours of sunshine does Nyack have in December?

In Nyack, the average sunshine duration in December is 4.9h.

When is the lowest UV index in Nyack?

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

What is the UV index intensity in December in Nyack?

In Nyack, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents 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
Nyack, NY

Average temperature in December - Nyack, NY
  • Average high temperature in December: 41°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 (35.2°F).

  • Average low temperature in December: 30.7°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

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Average pressure in December
Nyack, NY

Average pressure in December - Nyack, 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
Nyack, NY

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

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity in December
Nyack, NY

Average humidity in December - Nyack, NY
  • Average humidity in December: 77%

The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is August (70%).

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Average rainfall in December
Nyack, NY

Average rainfall in December - Nyack, NY
  • Average rainfall in December: 3.11"

The wettest month (with the highest rainfall) is July (3.35").
The driest month (with the least rainfall) is January (1.89").

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Average rainfall days in December
Nyack, NY

Average rainfall days in December - Nyack, NY
  • Average rainfall days in December: 10.4 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (6.8 days).

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Average snowfall in December
Nyack, NY

Average snowfall in December - Nyack, NY
  • Average snowfall in December: 1.85"

The month with the highest snowfall is March (2.8").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Nyack, NY

Average snowfall days in December - Nyack, NY
  • Average snowfall days in December: 3.5 days

The month with the highest number of snowfall days is February (5.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Nyack, NY

Average daylight in December / Average sunshine in December - Nyack, NY
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in December
Nyack, NY

Average sunshine days in December - Nyack, NY
  • Average sunshine days in December: 17.6 days

The months with the most sunshine days are January and November (20 days).
The month with the least sunshine days is July (10.9 days).

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Average UV index in December
Nyack, NY

Average UV index in December - Nyack, 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
Nyack, NY

Average cloud cover in December - Nyack, 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 32).

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Average visibility in December
Nyack, NY

Average visibility in December - Nyack, NY
  • 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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Nyack, New York, USA

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