December weather forecast
Lake Grove, NY

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Weather in December

The first month of the winter, December, is also a frosty month in Lake Grove, New York, with temperature in the range of an average high of 44.1°F (6.7°C) and an average low of 37.2°F (2.9°C).

Temperature

With December's onset, the weather reveals a slight temperature decrease, transitioning from a cool 52.3°F (11.3°C) in November to a frosty 44.1°F (6.7°C). Lake Grove sees a gentle drop from the daily peak temperature in December, with an average low settling at a cold 37.2°F (2.9°C).

Humidity

The average relative humidity in December in Lake Grove is 74%.

Rainfall

December is the month with the most rainfall in Lake Grove. Rain falls for 12.3 days and accumulates 3.74" (95mm) of precipitation.

Snowfall

Months with snowfall are January through March, May, October and December. December is the first month it typically snows in Lake Grove. Throughout December, in the average 2.4 snowfall days, it receives 1.22" (31mm) of snow. Throughout the year, in Lake Grove, there are 14.7 snowfall days, and 6.14" (156mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 6:58 am and sunset at 4:25 pm. On the last day of December, sunrise is at 7:16 am and sunset at 4:34 pm EST.

Sunshine

In December, the average sunshine in Lake Grove, New York, is 4.9h.

UV index

The months with the lowest UV index in Lake Grove are January through March and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index of 2 during December translates into these guidelines:
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. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
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Frequently asked questions

Is December cold in Lake Grove?

The average high-temperature, in December, in Lake Grove, is 44.1°F (6.7°C), while the average low-temperature is 37.2°F (2.9°C).

What is the average humidity in December in Lake Grove?

In December, the average relative humidity in Lake Grove, New York, is 74%.

What is the wettest month in Lake Grove?

The month with the most rainfall in Lake Grove, New York, is December, when the rain falls for 12.3 days and typically aggregates up to 3.74" (95mm) of precipitation.

How much does it rain in Lake Grove in December?

In Lake Grove, New York, in December, during 12.3 rainfall days, 3.74" (95mm) of precipitation is typically accumulated.

When does it start snowing in Lake Grove?

December is the first month it typically snows. Throughout December, in the average 2.4 snowfall days, it receives 1.22" (31mm) of snow.

What is the month with the shortest days in Lake Grove?

With an average of 9h and 18min of daylight, December has the shortest days of the year in Lake Grove.

How many hours of daylight does Lake Grove have in December?

The average day length in December in Lake Grove is 9h and 18min.

When is the sunrise / sunset in December in Lake Grove?

In December, on the first day of the month, sunrise is at 6:58 am and sunset at 4:25 pm. On the last day of the month, in Lake Grove, sunrise is at 7:16 am and sunset at 4:34 pm EST.

How long on average sun shines in December in Lake Grove?

In Lake Grove, New York, the average sunshine duration in December is 4.9h.

What is the month with the lowest UV index in Lake Grove?

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

What is the UV index reading in December in Lake Grove?

The average daily maximum UV index in December in Lake Grove is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to Sun's UV rays.
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
Lake Grove, NY

Average temperature in December - Lake Grove, NY
  • Average high temperature in December: 44.1°F

The warmest month (with the highest average high temperature) is August (78.1°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in December: 37.2°F

The month with the highest average low temperature is August (71.8°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

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Average pressure in December
Lake Grove, NY

Average pressure in December - Lake Grove, 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
Lake Grove, NY

Average wind speed in December - Lake Grove, NY
  • Average wind speed in December: 13.4mph

The windiest month (with the highest average wind speed) is January (13.8mph).
The calmest months (with the lowest average wind speed) are July and August (9mph).

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Average humidity in December
Lake Grove, NY

Average humidity in December - Lake Grove, NY
  • Average humidity in December: 74%

The months with the highest relative humidity are May and June (78%).
The month with the lowest relative humidity is November (71%).

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Average rainfall in December
Lake Grove, NY

Average rainfall in December - Lake Grove, NY
  • Average rainfall in December: 3.74"

The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is January (2.17").

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Average rainfall days in December
Lake Grove, NY

Average rainfall days in December - Lake Grove, NY
  • Average rainfall days in December: 12.3 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in December
Lake Grove, NY

Average snowfall in December - Lake Grove, NY
  • Average snowfall in December: 1.22"

The month with the highest snowfall is March (2.13").
The months with the least snowfall are April, June, July, August, September and November (0").

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Average snowfall days in December
Lake Grove, NY

Average snowfall days in December - Lake Grove, NY
  • Average snowfall days in December: 2.4 days

The month with the highest number of snowfall days is February (4.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Lake Grove, NY

Average daylight in December / Average sunshine in December - Lake Grove, 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 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in December
Lake Grove, NY

Average sunshine days in December - Lake Grove, NY
  • Average sunshine days in December: 16.9 days

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index in December
Lake Grove, NY

Average UV index in December - Lake Grove, 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
Lake Grove, NY

Average cloud cover in December - Lake Grove, 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
Lake Grove, NY

Average visibility in December - Lake Grove, 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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Lake Grove, New York, USA

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