December weather forecast
Forest Glen, NY

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Weather in December

December, the first month of the winter in Forest Glen, is also a wintry month, with an average temperature ranging between max 35.2°F (1.8°C) and min 26.6°F (-3°C).

Temperature

The average high-temperature decreases in December, shifting from a frosty 45.5°F (7.5°C) in November to a wintry 35.2°F (1.8°C). In Forest Glen, the nightly December temperatures experience a slight descent from daily highs to an average low of 26.6°F (-3°C).

Humidity

The average relative humidity in December is 84%.

Rainfall

In December, in Forest Glen, the rain falls for 10.6 days. Throughout December, 2.4" (61mm) of precipitation is accumulated. Throughout the year, in Forest Glen, there are 174.7 rainfall days, and 28.7" (729mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Forest Glen are January through May, October through December. In December, it is snowing for 16.1 days. Throughout December, 5.75" (146mm) of snow is accumulated. Throughout the year, there are 81.7 snowfall days, and 31.73" (806mm) of snow is accumulated.

Daylight

With an average of 9h and 6min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:26 am and sunset at 4:42 pm. On the last day of December, sunrise is at 7:45 am and sunset at 4:51 pm EST.

Sunshine

In Forest Glen, the average sunshine in December is 2.8h.

UV index

The months with the lowest UV index in Forest Glen are January, February and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.
Note: In December, a daily maximum UV index of 1 leads to the following instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Forest Glen?

In Forest Glen, 35.2°F (1.8°C) is the average high-temperature and 26.6°F (-3°C) is the average low-temperature during December.

What is the average humidity in December in Forest Glen?

In December, the average relative humidity in Forest Glen is 84%.

How many days does it rain in December in Forest Glen?

In December, in Forest Glen, New York, the rain falls for 10.6 days. Throughout December, 2.4" (61mm) of precipitation is accumulated.

How many days does it snow in December in Forest Glen?

In December, in Forest Glen, it is snowing for 16.1 days. Throughout December, 5.75" (146mm) of snow is accumulated.

What is the month with the shortest days in Forest Glen?

The month with the shortest days in Forest Glen, New York, is December, with an average of 9h and 6min of daylight.

How many hours of daylight does Forest Glen have in December?

In December, the average day length in Forest Glen, New York, is 9h and 6min.

When are sunrise and sunset in December in Forest Glen?

In December, on the first day of the month, sunrise is at 7:26 am and sunset at 4:42 pm. On the last day of the month, in Forest Glen, sunrise is at 7:45 am and sunset at 4:51 pm EST.

How long on average sun shines in December in Forest Glen?

The average sunshine duration in December in Forest Glen is 2.8h.

What is the month with the lowest UV index in Forest Glen?

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Forest Glen.

What is the UV index intensity in December in Forest Glen?

In December, the average daily maximum UV index in Forest Glen, New York, is 1. A UV Index of 2, and less, symbolizes a low health risk 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
Forest Glen, NY

Average temperature in December - Forest Glen, NY
  • Average high temperature in December: 35.2°F

The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (28.9°F).

  • Average low temperature in December: 26.6°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in December
Forest Glen, NY

Average pressure in December - Forest Glen, 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
Forest Glen, NY

Average wind speed in December - Forest Glen, NY
  • Average wind speed in December: 10.4mph

The windiest month (with the highest average wind speed) is January (11.3mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

Average humidity in December
Forest Glen, NY

Average humidity in December - Forest Glen, NY
  • Average humidity in December: 84%

The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are August and September (77%).

Average rainfall in December
Forest Glen, NY

Average rainfall in December - Forest Glen, NY
  • Average rainfall in December: 2.4"

The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is September (1.77").

Average rainfall days in December
Forest Glen, NY

Average rainfall days in December - Forest Glen, NY
  • Average rainfall days in December: 10.6 days

The month with the highest number of rainy days is October (18.4 days).
The month with the least rainy days is February (8.8 days).

Average snowfall in December
Forest Glen, NY

Average snowfall in December - Forest Glen, NY
  • Average snowfall in December: 5.75"

The month with the highest snowfall is February (7.87").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Forest Glen, NY

Average snowfall days in December - Forest Glen, NY
  • Average snowfall days in December: 16.1 days

The month with the highest number of snowfall days is January (18.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Forest Glen, NY

Average daylight in December / Average sunshine in December - Forest Glen, NY
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in December: 2h and 5min

The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).

Average sunshine days in December
Forest Glen, NY

Average sunshine days in December - Forest Glen, NY
  • Average sunshine days in December: 7.4 days

The month with the most sunshine days is September (12.2 days).
The month with the least sunshine days is February (5.7 days).

Average UV index in December
Forest Glen, NY

Average UV index in December - Forest Glen, NY
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).

Average cloud cover in December
Forest Glen, NY

Average cloud cover in December - Forest Glen, NY
  • Average cloud cover in December: 71

The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in December
Forest Glen, NY

Average visibility in December - Forest Glen, NY
  • Average visibility in December: 5mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

Forest Glen, New York, USA

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