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 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 involves a decrease in the average high-temperature, dropping from a frosty 48.6°F (9.2°C) to a cold 38.8°F (3.8°C). During December, an average low-temperature of 27.9°F (-2.3°C) is observed.Humidity
The months with the highest humidity are February and December, with an average relative humidity of 81%.Rainfall
In Greenwood Lake, in December, it is raining for 8.4 days, with typically 2.13" (54mm) of accumulated precipitation. In Greenwood Lake, during the entire year, the rain falls for 137.6 days and collects up to 23.31" (592mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Greenwood Lake, in December, during 3.4 snowfall days, 2.24" (57mm) of snow is typically accumulated. Throughout the year, there are 24 snowfall days, and 15.04" (382mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:03 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:38 pm EST.
Sunshine
In December, the average sunshine is 4.8h.UV index
The months with the lowest UV index 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 minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 2 during December translates into the following directions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold in Greenwood Lake?
What is the most humid month in Greenwood Lake?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Greenwood Lake have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Greenwood Lake have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Greenwood Lake, NY
- Average high temperature in December: 38.8°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.3°F).
- Average low temperature in December: 27.9°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in December
Greenwood Lake, NY
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Greenwood Lake, NY
- Average wind speed in December: 7mph
The windiest months (with the highest average wind speed) are January, February and March (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Greenwood Lake, NY
- Average humidity in December: 81%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Greenwood Lake, NY
- Average rainfall in December: 2.13"
The wettest month (with the highest rainfall) is July (2.76").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in December
Greenwood Lake, NY
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in December
Greenwood Lake, NY
- Average snowfall in December: 2.24"
The month with the highest snowfall is February (3.7").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Greenwood Lake, NY
- Average snowfall days in December: 3.4 days
The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Greenwood Lake, 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 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in December
Greenwood Lake, NY
- Average sunshine days in December: 19.7 days
The months with the most sunshine days are January and November (21 days).
The month with the least sunshine days is June (12 days).
Average UV index in December
Greenwood Lake, 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, November and December (UV index 2).
Average cloud cover in December
Greenwood Lake, NY
- Average cloud cover in December: 49
The months with the most cloud cover are February and March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Greenwood Lake, NY
- Average visibility in December: 6mi
The months with the highest visibility are April, July, November and December (6mi).
The months with the lowest visibility are January, February, March, May, June, August, September and October (5mi).
Greenwood Lake, New York, USA
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