December weather forecastSunset Bay, NY
December
Weather in December
The first month of the winter, December, is still a cold month in Sunset Bay, New York, with an average temperature varying between 36°F (2.2°C) and 28.2°F (-2.1°C).Temperature
December implies a gentle temperature shift, with average high-temperatures reducing from November's frosty 45.5°F (7.5°C) to a wintry 36°F (2.2°C). The nighttime temperature demonstrates a marginal decline, averaging at a freezing cold 28.2°F (-2.1°C) during December.Humidity
In Sunset Bay, the average relative humidity in December is 83%.Rainfall
In Sunset Bay, during December, the rain falls for 10.5 days and regularly aggregates up to 1.97" (50mm) of precipitation. Throughout the year, there are 168.1 rainfall days, and 26.54" (674mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Sunset Bay, during December, snow falls for 13.2 days and regularly aggregates up to 3.07" (78mm) of snow. In Sunset Bay, New York, during the entire year, snow falls for 62.6 days and aggregates up to 17.68" (449mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:27 am and sunset at 4:44 pm. On the last day of December, sunrise is at 7:46 am and sunset at 4:53 pm EST.
Sunshine
The average sunshine in December is 2.8h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, a daily maximum UV index of 1 leads to the following instructions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Experience reduced UV exposure by about half when donning a wide-brim hat. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sunset Bay, NY
- Average high temperature in December: 36°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in December: 28.2°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in December
Sunset Bay, 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
Sunset Bay, NY
- Average wind speed in December: 11.9mph
The windiest month (with the highest average wind speed) is January (12.6mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in December
Sunset Bay, NY
- Average humidity in December: 83%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is September (77%).
Average rainfall in December
Sunset Bay, NY
- Average rainfall in December: 1.97"
The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is January (1.69").
Average rainfall days in December
Sunset Bay, NY
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is October (18.5 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in December
Sunset Bay, NY
- Average snowfall in December: 3.07"
The month with the highest snowfall is February (5.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Sunset Bay, NY
- Average snowfall days in December: 13.2 days
The month with the highest number of snowfall days is January (15.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sunset Bay, NY
- Average daylight in December: 9h and 6min
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 48min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in December
Sunset Bay, NY
- Average sunshine days in December: 8 days
The month with the most sunshine days is June (12.8 days).
The month with the least sunshine days is January (6.5 days).
Average UV index in December
Sunset Bay, 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 and December (UV index 1).
Average cloud cover in December
Sunset Bay, NY
- Average cloud cover in December: 72
The month with the most cloud cover is January (Cloud cover 76).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Sunset Bay, NY
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).





