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
In December, the average high-temperature marginally decreases from a cool 52°F (11.1°C) in November to a chilly 43.9°F (6.6°C). Brightwaters, during December nights, observes a steady temperature, averaging at a wintry 36.9°F (2.7°C).Humidity
The average relative humidity in December is 74%.Rainfall
In Brightwaters, in December, during 11.6 rainfall days, 3.58" (91mm) of precipitation is typically accumulated. In Brightwaters, during the entire year, the rain falls for 153.2 days and collects up to 34.45" (875mm) of precipitation.Snowfall
January through March, October through December are months with snowfall. In December, in Brightwaters, it is snowing for 1.7 days. Throughout December, 1.42" (36mm) of snow is accumulated. In Brightwaters, during the entire year, snow falls for 13 days and aggregates up to 5.87" (149mm) 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 6:58 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:35 pm EST.
Sunshine
In Brightwaters, the average sunshine in December is 4.9h.UV index
The months with the lowest UV index in Brightwaters are January through March and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum high UV index of 2 in December translates into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. To avoid the Sun's strongest rays, limit exposure around the mid-day period. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
Is it cold in Brightwaters during December?
What is the average humidity in December in Brightwaters?
How much does it rain in Brightwaters in December?
How much does it snow in Brightwaters in December?
What is the month with the shortest days in Brightwaters?
How many hours of daylight does Brightwaters have in December?
When is the sunrise / sunset in December in Brightwaters?
How many hours of sunshine does Brightwaters have in December?
What is the month with the lowest UV index in Brightwaters?
What is the UV index intensity in December in Brightwaters?
Average temperature in December
Brightwaters, NY
- Average high temperature in December: 43.9°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in December: 36.9°F
The month with the highest average low temperature is August (72°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in December
Brightwaters, 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
Brightwaters, NY
- Average wind speed in December: 12.9mph
The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is July (8.6mph).
Average humidity in December
Brightwaters, NY
- Average humidity in December: 74%
The months with the highest relative humidity are May and June (77%).
The month with the lowest relative humidity is November (71%).
Average rainfall in December
Brightwaters, NY
- Average rainfall in December: 3.58"
The wettest month (with the highest rainfall) is July (3.86").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days in December
Brightwaters, NY
- Average rainfall days in December: 11.6 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in December
Brightwaters, NY
- Average snowfall in December: 1.42"
The month with the highest snowfall is March (1.97").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in December
Brightwaters, NY
- Average snowfall days in December: 1.7 days
The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Brightwaters, 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: 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
Brightwaters, NY
- Average sunshine days in December: 17.4 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.2 days).
Average UV index in December
Brightwaters, 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
Brightwaters, 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
Brightwaters, 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).
Brightwaters, New York, USA
Weather forecast for your location
2. Allow the app to use your location
