December weather forecast
East Patchogue, NY

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Weather in December

December, the first month of the winter in East Patchogue, is also a frosty month, with an average temperature fluctuating between 44.1°F (6.7°C) and 37.2°F (2.9°C).

Temperature

The shift from November to December coincides with a small decrease in the average high-temperature, down to a frosty 44.1°F (6.7°C) from a fresh 52.3°F (11.3°C). December nights reflect a consistent temperature dip to a cold 37.2°F (2.9°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. 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. Throughout December, in the average 2.4 snowfall days, it receives 1.22" (31mm) of snow. In East Patchogue, during the entire year, snow falls for 14.7 days and aggregates up to 6.14" (156mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:57 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:34 pm EST.

Sunshine

In December, the average sunshine is 4.9h.

UV index

January through March and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.
Note: The UV index of 2 during December leads to these advisories:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.

Frequently asked questions

Is it cold during December?

The high-temperature, in December, in East Patchogue, is 44.1°F (6.7°C), while the low-temperature averages to 37.2°F (2.9°C).

What is the average humidity in December?

The average relative humidity in December is 74%.

What is the rainiest month?

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

How many days does it rain in December?

In East Patchogue, during December, the rain falls for 12.3 days and regularly aggregates up to 3.74" (95mm) of precipitation.

When does it start to snow?

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

What is the month with the shortest days?

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

How many hours of daylight does East Patchogue have in December?

The average day length in December is 9h and 19min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 6:57 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:34 pm EST.

How many hours of sunshine does East Patchogue have in December?

In December, the average sunshine duration is 4.9h.

What is the month with the lowest UV index?

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

What is the UV index reading in December?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.
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
East Patchogue, NY

Average temperature in December - East Patchogue, 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).

Average pressure in December
East Patchogue, NY

Average pressure in December - East Patchogue, 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
East Patchogue, NY

Average wind speed in December - East Patchogue, 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).

Average humidity in December
East Patchogue, NY

Average humidity in December - East Patchogue, 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%).

Average rainfall in December
East Patchogue, NY

Average rainfall in December - East Patchogue, 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").

Average rainfall days in December
East Patchogue, NY

Average rainfall days in December - East Patchogue, 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).

Average snowfall in December
East Patchogue, NY

Average snowfall in December - East Patchogue, 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").

Average snowfall days in December
East Patchogue, NY

Average snowfall days in December - East Patchogue, 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).

Average daylight in December /
Average sunshine in December
East Patchogue, NY

Average daylight in December / Average sunshine in December - East Patchogue, 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).

Average sunshine days in December
East Patchogue, NY

Average sunshine days in December - East Patchogue, 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).

Average UV index in December
East Patchogue, NY

Average UV index in December - East Patchogue, 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
East Patchogue, NY

Average cloud cover in December - East Patchogue, 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).

Average visibility in December
East Patchogue, NY

Average visibility in December - East Patchogue, 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).

East Patchogue, New York, USA

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