December weather forecast and climate
Amagansett, NY

Weather in December

December, the first month of the winter, in Amagansett, is also a frosty month, with average temperature fluctuating between 45.1°F (7.3°C) and 38.1°F (3.4°C).

Temperature

In Amagansett, the average high-temperature slightly decreases, from a fresh 52.5°F (11.4°C) in November, to a frosty 45.1°F (7.3°C). In Amagansett, the average low-temperature is 38.1°F (3.4°C).

Humidity

The average relative humidity in Amagansett is 74%.

Rainfall

The month with the most rainfall is December when the rain falls for 11.6 days and typically aggregates up to 3.54" (90mm) of precipitation.

Snowfall

Months with snowfall in Amagansett are January through May, November and December. In Amagansett, during December, snow falls for 1.8 days and regularly aggregates up to 0.79" (20mm) of snow. In Amagansett, during the entire year, snow falls for 12.6 days, and aggregates up to 5.94" (151mm) of snow.

Daylight

With an average of 9.3h of daylight, December has the shortest days of the year.

Sunshine

The month with the least sunshine in Amagansett is December, with an average of 4.6h of sunshine.

UV index

January through March 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 unsafe exposure to the UV radiation for average individuals.
Note: The daily maximum UV index of 2 in December interpret into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in December in Amagansett?

In December, the average relative humidity is 74%.

What is the rainiest month in Amagansett?

December is the month with the most rainfall. Rain falls for 11.6 days and accumulates 3.54" (90mm) of precipitation.

How many days does it rain in December in Amagansett?

In Amagansett, New York, in December, during 11.6 rainfall days, 3.54" (90mm) of precipitation is typically accumulated.

How much does it snow in Amagansett in December?

In December, in Amagansett, it is snowing for 1.8 days. Throughout December, 0.79" (20mm) of snow is accumulated.

What is the month with the shortest days in Amagansett?

With an average of 9.3h of daylight, December has the shortest days of the year.

How many hours of daylight does Amagansett have in December?

In December, the average length of the day is 9.3h.

What is the month with the least sunshine in Amagansett?

With an average of 4.6h of sunshine, December has the least sunshine of the year in Amagansett.

How many hours of sunshine does Amagansett have in December?

The average sunshine in December in Amagansett, New York, is 4.6h.

When is the lowest UV index in Amagansett?

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

What is the UV index reading in December in Amagansett?

In December, the average daily maximum UV index in Amagansett is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to the UV radiation.

Average temperature in December
Amagansett, NY

Average temperature in December - Amagansett, NY
  • Average high temperature in December: 45.1°F

The warmest month (with the highest average high temperature) is August (75.4°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in December: 38.1°F

The month with the highest average low temperature is August (71.2°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).

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Average pressure in December
Amagansett, NY

Average pressure in December - Amagansett, NY
  • Average pressure in December: 30.05"

The month with the highest atmospheric pressure is November (30.08").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in December
Amagansett, NY

Average wind speed in December - Amagansett, NY
  • Average wind speed in December: 16mph

The windiest month (with the highest average wind speed) is January (16.4mph).
The calmest month (with the lowest average wind speed) is July (10.8mph).

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Average humidity in December
Amagansett, NY

Average humidity in December - Amagansett, NY
  • Average humidity in December: 74%

Months with the highest relative humidity are May and June (82%).
The month with the lowest relative humidity is November (72%).

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Average rainfall in December
Amagansett, NY

Average rainfall in December - Amagansett, NY
  • Average rainfall in December: 3.54"

The wettest month (with the highest rainfall) is December (3.54").
The driest month (with the least rainfall) is September (2.09").

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Average rainfall days in December
Amagansett, NY

Average rainfall days in December - Amagansett, NY
  • Average rainfall days in December: 11.6 days

Months with the highest number of rainy days are July and August (15.5 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in December
Amagansett, NY

Average snowfall in December - Amagansett, NY
  • Average snowfall in December: 0.79"

The month with the highest snowfall is March (1.97").
Months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Amagansett, NY

Average snowfall days in December - Amagansett, NY
  • Average snowfall days in December: 1.8 days

The month with the highest number of snowfall days is January (3.9 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Amagansett, NY
  • Average daylight in December: 9.3h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in December: 4.6h

The month with the most sunshine is August (Average sunshine: 10.6h).
The month with the least sunshine is December (Average sunshine: 4.6h).

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Average sunshine days in December
Amagansett, NY

Average sunshine days in December - Amagansett, NY
  • Average sunshine days in December: 16.3 days

The month with the most sunshine days is November (18.4 days).
Months with the least sunshine days are July and August (13.3 days).

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Average UV index in December
Amagansett, NY

Average UV index in December - Amagansett, NY
  • Average UV index in December: 2

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

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Average cloud cover in December
Amagansett, NY

Average cloud cover in December - Amagansett, NY
  • Average cloud cover in December: 51

The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in December
Amagansett, NY

Average visibility in December - Amagansett, NY
  • Average visibility in December: 6mi

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

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