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
As November shifts into December, a minor alteration in temperatures is observed, with average highs reducing from a cool 51.6°F (10.9°C) to a frosty 43.7°F (6.5°C). Lynbrook encounters an average temperature dip to a cold 36°F (2.2°C) throughout December, subtly lower than its daytime maximum.Humidity
The average relative humidity in December is 74%.Rainfall
In Lynbrook, in December, during 6.8 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. In Lynbrook, during the entire year, the rain falls for 105.1 days and collects up to 8.15" (207mm) of precipitation.Snowfall
Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 1.3 snowfall days, it receives 0.12" (3mm) of snow. In Lynbrook, during the entire year, snow falls for 9.4 days and aggregates up to 0.63" (16mm) 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 the month, sunrise is at 6:59 am and sunset at 4:28 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:37 pm EST.
Sunshine
In Lynbrook, the average sunshine in December is 5h.UV index
The months with the lowest UV index in Lynbrook are January through March and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What is the average humidity in December?
How much does it rain in December?
When does it start snowing?
What is the month with the shortest days?
How many hours of daylight does Lynbrook have in December?
What time are sunrise and sunset in December in Lynbrook?
How long on average sun shines in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Lynbrook, NY
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in December: 36°F
The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in December
Lynbrook, 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
Lynbrook, NY
- Average wind speed in December: 12.2mph
The windiest month (with the highest average wind speed) is January (12.7mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).
Average humidity in December
Lynbrook, NY
- Average humidity in December: 74%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is November (71%).
Average rainfall in December
Lynbrook, NY
- Average rainfall in December: 0.83"
The wettest month (with the highest rainfall) is July (0.98").
The driest month (with the least rainfall) is September (0.31").
Average rainfall days in December
Lynbrook, NY
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is July (12.7 days).
The months with the least rainy days are January and November (5.2 days).
Average snowfall in December
Lynbrook, NY
- Average snowfall in December: 0.12"
The month with the highest snowfall is March (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Lynbrook, NY
- Average snowfall days in December: 1.3 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Lynbrook, NY
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Lynbrook, NY
- Average sunshine days in December: 22.5 days
The month with the most sunshine days is January (23.4 days).
The month with the least sunshine days is June (14.9 days).
Average UV index in December
Lynbrook, 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
Lynbrook, NY
- Average cloud cover in December: 47
The months with the most cloud cover are February and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in December
Lynbrook, 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).
Lynbrook, New York, USA
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