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
With the arrival of December, Oyster Bay Cove notices a mild change in the average high-temperature, sliding from November's fresh 51.4°F (10.8°C) to a chilly 43.3°F (6.3°C). Oyster Bay Cove's average temperature throughout the nights in December exhibits a minor decrease from daytime highs, stabilizing at a cold 35.4°F (1.9°C).Humidity
In December, the average relative humidity 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, there are 152.5 rainfall days, and 35.04" (890mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In December, it is snowing for 2.8 days. Throughout December, 1.46" (37mm) of snow is accumulated. In Oyster Bay Cove, during the entire year, snow falls for 15.5 days and aggregates up to 5.71" (145mm) of snow.Ocean temperature
In December, the average ocean temperature is 48°F (8.9°C).Note: Diving into 48°F (8.9°C) when it's under 50°F (10°C) can cause immediate cold shock symptoms, marked by hyperventilation.
Daylight
The month with the shortest days is December, 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
In December, the average sunshine in Oyster Bay Cove 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 exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 2 during December translates into the following directions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the ocean temperature in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Oyster Bay Cove have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
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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