December weather forecast
Bay Shore, NY

Weather in December

The first month of the winter, December, is still a chilly month in Bay Shore, New York, with an average temperature ranging between min 36.9°F (2.7°C) and max 43.9°F (6.6°C).

Temperature

In December, the average high-temperature slightly decreases from a fresh 52°F (11.1°C) in November to a frosty 43.9°F (6.6°C). In December, in Bay Shore, the average low-temperature is 36.9°F (2.7°C).

Humidity

In Bay Shore, the average relative humidity in December is 74%.

Rainfall

In Bay Shore, New York, in December, it is raining for 11.6 days, with typically 3.58" (91mm) of accumulated precipitation. Throughout the year, in Bay Shore, New York, there are 153.2 rainfall days, and 34.45" (875mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Bay Shore are January through March, October through December. In Bay Shore, during December, snow falls for 1.7 days and regularly aggregates up to 1.42" (36mm) of snow. Throughout the year, in Bay Shore, there are 13 snowfall days, and 5.87" (149mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 19min of daylight.
On the first day of the month, sunrise is at 6:57 am and sunset at 4:26 pm. On the last day of December, in Bay Shore, sunrise is at 7:16 am and sunset at 4:35 pm EST.

Sunshine

In December, the average sunshine is 4.9h.

UV index

The months with the lowest UV index are January through March and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 2 in December transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Bay Shore?

In Bay Shore, New York, in December, the average high-temperature is 43.9°F (6.6°C), and the average low-temperature is 36.9°F (2.7°C).

What is the average humidity in December in Bay Shore?

In Bay Shore, the average relative humidity in December is 74%.

How much does it rain in Bay Shore in December?

In Bay Shore, in December, it is raining for 11.6 days, with typically 3.58" (91mm) of accumulated precipitation.

How many days does it snow in December in Bay Shore?

In Bay Shore, in December, during 1.7 snowfall days, 1.42" (36mm) of snow is typically accumulated.

What is the month with the shortest days in Bay Shore?

December has the shortest days of the year, with an average of 9h and 19min of daylight.

How many hours of daylight does Bay Shore have in December?

In December, the average day length in Bay Shore is 9h and 19min.

When are sunrise and sunset in December in Bay Shore?

On the first day of December in Bay Shore, New York, sunrise is at 6:57 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:35 pm EST.

How long on average sun shines in December in Bay Shore?

The average sunshine duration in December in Bay Shore, New York, is 4.9h.

When is the lowest UV index in Bay Shore?

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

How high is the UV index in December in Bay Shore?

In December, the average daily maximum UV index in Bay Shore, New York, 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
Bay Shore, NY

Average temperature in December - Bay Shore, NY
  • Average high temperature in December: 43.9°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in December: 36.9°F

The month with the highest average low temperature is August (72°F).
The coldest month (with the lowest average low temperature) is January (30°F).

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Average pressure in December
Bay Shore, NY

Average pressure in December - Bay Shore, NY
  • Average pressure in December: 30.06"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Bay Shore, NY

Average wind speed in December - Bay Shore, NY
  • Average wind speed in December: 12.9mph

The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is July (8.6mph).

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Average humidity in December
Bay Shore, NY

Average humidity in December - Bay Shore, NY
  • Average humidity in December: 74%

The months with the highest relative humidity are May and June (77%).
The month with the lowest relative humidity is November (71%).

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Average rainfall in December
Bay Shore, NY

Average rainfall in December - Bay Shore, NY
  • Average rainfall in December: 3.58"

The wettest month (with the highest rainfall) is July (3.86").
The driest month (with the least rainfall) is January (2.05").

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Average rainfall days in December
Bay Shore, NY

Average rainfall days in December - Bay Shore, NY
  • Average rainfall days in December: 11.6 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.6 days).

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Average snowfall in December
Bay Shore, NY

Average snowfall in December - Bay Shore, NY
  • Average snowfall in December: 1.42"

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

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Average snowfall days in December
Bay Shore, NY

Average snowfall days in December - Bay Shore, NY
  • Average snowfall days in December: 1.7 days

The month with the highest number of snowfall days is February (4.2 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
Bay Shore, NY

Average daylight in December / Average sunshine in December - Bay Shore, NY
  • Average daylight in December: 9h and 19min

The month with the longest days is June (Average daylight: 15h and 3min).
The month with the shortest days is December (Average daylight: 9h and 19min).

  • Average sunshine in December: 4h and 54min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in December
Bay Shore, NY

Average sunshine days in December - Bay Shore, NY
  • Average sunshine days in December: 17.4 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.2 days).

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Average UV index in December
Bay Shore, NY

Average UV index in December - Bay Shore, 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 and December (UV index 2).

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Average cloud cover in December
Bay Shore, NY

Average cloud cover in December - Bay Shore, NY
  • Average cloud cover in December: 48

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in December
Bay Shore, NY

Average visibility in December - Bay Shore, 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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