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
The shift from November to December in Montauk includes a minor decrease in the average high-temperature, lightly dropping from a fresh 52.5°F (11.4°C) to a frosty 45°F (7.2°C). December nights in Montauk reflect a consistent temperature dip to a cold 37.9°F (3.3°C), a slight descent from daytime peaks.Humidity
The average relative humidity in December is 74%.Rainfall
December is the month with the most rainfall in Montauk. Rain falls for 13.4 days and accumulates 4.02" (102mm) of precipitation.Snowfall
January through April and December are months with snowfall in Montauk, New York. December is the first month it typically snows in Montauk. Throughout December, in the average 2.6 snowfall days, it receives 0.75" (19mm) of snow. In Montauk, during the entire year, snow falls for 15.2 days and aggregates up to 6.14" (156mm) of snow.Ocean temperature
In December, the average ocean temperature is 48.6°F (9.2°C).Note: Engaging in a swim in 48.6°F (9.2°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
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of December in Montauk, sunrise is at 6:54 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:29 pm EST.
Sunshine
With an average of 4.7h of sunshine, December has the least sunshine of the year in Montauk.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 estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 2 during December leads to these advisories:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Frequently asked questions
What are December temperatures in Montauk?
What is the average humidity in December in Montauk?
What is the rainiest month in Montauk?
How many days does it rain in December in Montauk?
When does it start snowing in Montauk?
What is the water temperature in December in Montauk?
What is the month with the shortest days in Montauk?
What is the average length of the day in December in Montauk?
What time are sunrise and sunset in December in Montauk?
What is the month with the least sunshine in Montauk?
How long on average sun shines in December in Montauk?
What is the month with the lowest UV index in Montauk?
How high is the UV index in December in Montauk?
Average temperature in December
Montauk, NY
- Average high temperature in December: 45°F
The warmest month (with the highest average high temperature) is August (74.8°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in December: 37.9°F
The month with the highest average low temperature is August (70.9°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).
Average pressure in December
Montauk, NY
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Montauk, NY
- Average wind speed in December: 16.3mph
The windiest month (with the highest average wind speed) is January (16.7mph).
The calmest month (with the lowest average wind speed) is July (11.1mph).
Average humidity in December
Montauk, NY
- Average humidity in December: 74%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is November (73%).
Average rainfall in December
Montauk, NY
- Average rainfall in December: 4.02"
The wettest month (with the highest rainfall) is December (4.02").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in December
Montauk, NY
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is January (9.9 days).
Average snowfall in December
Montauk, NY
- Average snowfall in December: 0.75"
The month with the highest snowfall is March (2.24").
The months with the least snowfall are May, June, July, August, September, October and November (0").
Average snowfall days in December
Montauk, NY
- Average snowfall days in December: 2.6 days
The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in December
Montauk, NY
- Average sea temperature in December: 48.6°F
The best month for swimming (with the highest average sea temperature) is August (70.3°F).
The coldest month (with the lowest average sea temperature) is February (37.9°F).
Average daylight in December /
Average sunshine in December
Montauk, 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 4min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in December
Montauk, NY
- Average sunshine days in December: 13.7 days
The month with the most sunshine days is September (17.7 days).
The month with the least sunshine days is February (12.4 days).
Average UV index in December
Montauk, 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).
Average cloud cover in December
Montauk, NY
- Average cloud cover in December: 50
The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Montauk, 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).
Montauk, New York, USA
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