Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December brings a slight decrease in temperature, down from a fresh 51.4°F (10.8°C) in November to a chilly 43.3°F (6.3°C). Throughout December, Oyster Bay Cove observes a steady low-temperature average of 35.4°F (1.9°C), reflecting a minor dip from daytime highs.Humidity
In Oyster Bay Cove, the average relative humidity in December is 74%.Rainfall
In Oyster Bay Cove, during December, the rain falls for 11.5 days and regularly aggregates up to 3.62" (92mm) of precipitation. Throughout the year, in Oyster Bay Cove, New York, there are 152.5 rainfall days, and 35.04" (890mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. In December, in Oyster Bay Cove, it is snowing for 2.8 days. Throughout December, 1.46" (37mm) of snow is accumulated. Throughout the year, there are 15.5 snowfall days, and 5.71" (145mm) of snow is accumulated.Ocean temperature
In Oyster Bay Cove, the average seawater temperature in December is 48°F (8.9°C).Note: Engaging in a swim in 48°F (8.9°C) can threaten life. Brief exposure to 55.4°F (13°C) waters is uneasy, and submersion below 50°F (10°C) can lead to cold shock and disrupted breathing patterns, varying by individual.
Daylight
December has the shortest days of the year in Oyster Bay Cove, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 6:59 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:36 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 in Oyster Bay Cove. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Boost your sun resistance with garments that are densely woven yet spacious. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
How cold does it get in Oyster Bay Cove in December?
What is the average humidity in December in Oyster Bay Cove?
How many days does it rain in December in Oyster Bay Cove?
How much does it snow in Oyster Bay Cove in December?
What is the ocean temperature in December in Oyster Bay Cove?
What is the month with the shortest days in Oyster Bay Cove?
How many hours of daylight does Oyster Bay Cove have in December?
When is the sunrise / sunset in December in Oyster Bay Cove?
How many hours of sunshine does Oyster Bay Cove have in December?
What are the months with the lowest UV index in Oyster Bay Cove?
What is the UV index intensity in December in Oyster Bay Cove?
Average temperature in December
Oyster Bay Cove, NY
- Average high temperature in December: 43.3°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in December: 35.4°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).
Average pressure in December
Oyster Bay Cove, 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).
Average wind speed in December
Oyster Bay Cove, NY
- Average wind speed in December: 11.7mph
The windiest month (with the highest average wind speed) is January (12.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in December
Oyster Bay Cove, NY
- Average humidity in December: 74%
The months with the highest relative humidity are May and June (76%).
The month with the lowest relative humidity is November (71%).
Average rainfall in December
Oyster Bay Cove, NY
- Average rainfall in December: 3.62"
The wettest month (with the highest rainfall) is July (4.09").
The driest month (with the least rainfall) is January (2.09").
Average rainfall days in December
Oyster Bay Cove, NY
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in December
Oyster Bay Cove, NY
- Average snowfall in December: 1.46"
The month with the highest snowfall is March (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Oyster Bay Cove, NY
- Average snowfall days in December: 2.8 days
The month with the highest number of snowfall days is February (4.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in December
Oyster Bay Cove, NY
- Average sea temperature in December: 48.1°F
The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.9°F).
Average daylight in December /
Average sunshine in December
Oyster Bay Cove, 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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Oyster Bay Cove, NY
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in December
Oyster Bay Cove, 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).
Average cloud cover in December
Oyster Bay Cove, NY
- Average cloud cover in December: 48
The month with the most cloud cover is December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in December
Oyster Bay Cove, 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).
Oyster Bay Cove, New York, USA
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