December weather forecast and climate
Glenwood Landing, NY

Weather in December

December, the first month of the winter, in Glenwood Landing, is also a wintry month, with average temperature ranging between min 34.7°F (1.5°C) and max 42.4°F (5.8°C).

Temperature

In December, the average high-temperature slightly decreases, from a fresh 51.1°F (10.6°C) in November, to a wintry 42.4°F (5.8°C). In December, the average low-temperature is 34.7°F (1.5°C).

Humidity

Months with the highest humidity in Glenwood Landing are February, May and December, with an average relative humidity of 75%.

Rainfall

December is the month with the most rainfall in Glenwood Landing. Rain falls for 12.9 days and accumulates 4.06" (103mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Glenwood Landing, New York. In Glenwood Landing, New York,, snow falls for 3.5 days, with typically accumulated 1.54" (39mm) of snow. Throughout the year, there are 22.2 snowfall days, and 7.24" (184mm) of snow is accumulated.

Ocean temperature

In Glenwood Landing, the average seawater temperature is 48°F (8.9°C).
Note: Swimming in 48°F (8.9°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

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

Sunshine

In Glenwood Landing, the average sunshine is 4.9h.

UV index

Months with the lowest UV index in Glenwood Landing, New York, 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 unprotected exposure to the Sun's UV rays for the average person.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. 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. 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 most humid month in Glenwood Landing?

Months with the highest humidity in Glenwood Landing, New York, are February, May and December, with an average relative humidity of 75%.

What is the average humidity in December in Glenwood Landing?

The average relative humidity in December in Glenwood Landing is 75%.

What is the rainiest month in Glenwood Landing?

The month with the most rainfall is December when the rain falls for 12.9 days and typically aggregates up to 4.06" (103mm) of precipitation.

How much does it rain in Glenwood Landing in December?

In December, in Glenwood Landing, New York, the rain falls for 12.9 days. Throughout December, 4.06" (103mm) of precipitation is accumulated.

How many days does it snow in December in Glenwood Landing?

In Glenwood Landing, New York, during December, snow falls for 3.5 days and regularly aggregates up to 1.54" (39mm) of snow.

What is the ocean temperature in December in Glenwood Landing?

In Glenwood Landing, in December, the average water temperature is 48°F (8.9°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

What is the month with the shortest days in Glenwood Landing?

December has the shortest days of the year in Glenwood Landing, with an average of 9.3h of daylight.

What is the average length of the day in December in Glenwood Landing?

In Glenwood Landing, New York, the average length of the day in December is 9.3h.

How many hours of sunshine does Glenwood Landing have in December?

The average sunshine in December in Glenwood Landing, New York, is 4.9h.

What are the months with the lowest UV index in Glenwood Landing?

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

What is the UV index reading in December in Glenwood Landing?

The average daily maximum UV index in December in Glenwood Landing is 2. A UV Index reading of 2, and below, represents a low health threat from unsafe exposure to the Sun's UV rays.

Average temperature in December
Glenwood Landing, NY

Average temperature in December - Glenwood Landing, NY
  • Average high temperature in December: 42.4°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in December: 34.7°F

Months with the highest average low temperature are July and August (70.3°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).

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Average pressure in December
Glenwood Landing, NY

Average pressure in December - Glenwood Landing, NY
  • Average pressure in December: 30.07"

The month with the highest atmospheric pressure is November (30.1").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in December
Glenwood Landing, NY

Average wind speed in December - Glenwood Landing, NY
  • Average wind speed in December: 10.8mph

The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).

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Average humidity in December
Glenwood Landing, NY

Average humidity in December - Glenwood Landing, NY
  • Average humidity in December: 75%

Months with the highest relative humidity are February, May and December (75%).
Months with the lowest relative humidity are August and November (71%).

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Average rainfall in December
Glenwood Landing, NY

Average rainfall in December - Glenwood Landing, NY
  • Average rainfall in December: 4.06"

The wettest month (with the highest rainfall) is December (4.06").
The driest month (with the least rainfall) is September (2.4").

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Average rainfall days in December
Glenwood Landing, NY

Average rainfall days in December - Glenwood Landing, NY
  • Average rainfall days in December: 12.9 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (9.3 days).

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Average snowfall in December
Glenwood Landing, NY

Average snowfall in December - Glenwood Landing, NY
  • Average snowfall in December: 1.54"

The month with the highest snowfall is March (2.01").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Glenwood Landing, NY

Average snowfall days in December - Glenwood Landing, NY
  • Average snowfall days in December: 3.5 days

The month with the highest number of snowfall days is January (6.8 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

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Average sea temperature in December
Glenwood Landing, NY

Average sea temperature in December - Glenwood Landing, 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).

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Average daylight in December /
Average sunshine in December
Glenwood Landing, NY

Average daylight in December / Average sunshine in December - Glenwood Landing, 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: 4.9h

The month with the most sunshine is July (Average sunshine: 10.7h).
The month with the least sunshine is February (Average sunshine: 4.8h).

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Average sunshine days in December
Glenwood Landing, NY

Average sunshine days in December - Glenwood Landing, NY
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (10.6 days).

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Average UV index in December
Glenwood Landing, NY

Average UV index in December - Glenwood Landing, 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, November and December (UV index 2).

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Average cloud cover in December
Glenwood Landing, NY

Average cloud cover in December - Glenwood Landing, NY
  • Average cloud cover in December: 47

Months with the most cloud cover are February and December (Cloud cover 47).
Months with the least cloud cover are July and August (Cloud cover 29).

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Average visibility in December
Glenwood Landing, NY

Average visibility in December - Glenwood Landing, 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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