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
December brings a decrease in the average high-temperature, falling from November's chilly 48.7°F (9.3°C) to a cold 39.6°F (4.2°C). In Waccabuc, an average temperature of 29.3°F (-1.5°C) is noted during December nights.Humidity
The average relative humidity in December is 78%.Rainfall
In Waccabuc, in December, during 8.1 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. Throughout the year, there are 123.7 rainfall days, and 11.65" (296mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Waccabuc, in December, during 4.1 snowfall days, 0.55" (14mm) of snow is typically accumulated. Throughout the year, there are 20.5 snowfall days, and 2.68" (68mm) of snow is accumulated.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in Waccabuc.On the first day of the month, sunrise is at 7:01 am and sunset at 4:25 pm. On the last day of December, sunrise is at 7:20 am and sunset at 4:35 pm EST.
Sunshine
In Waccabuc, the average sunshine in December is 4.7h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum UV index of 1 in December translates into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Stay sun-safe with clothing that is both closely woven and worn loosely. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Waccabuc, NY
- Average high temperature in December: 39.6°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in December
Waccabuc, 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
Waccabuc, NY
- Average wind speed in December: 7.8mph
The windiest months (with the highest average wind speed) are January and March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Waccabuc, NY
- Average humidity in December: 78%
The months with the highest relative humidity are February and October (79%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Waccabuc, NY
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is July (1.57").
The driest months (with the least rainfall) are January and February (0.55").
Average rainfall days in December
Waccabuc, NY
- Average rainfall days in December: 8.1 days
The month with the highest number of rainy days is July (14.4 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in December
Waccabuc, NY
- Average snowfall in December: 0.55"
The months with the highest snowfall are January and February (0.75").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Waccabuc, NY
- Average snowfall days in December: 4.1 days
The month with the highest number of snowfall days is February (5.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Waccabuc, 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 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Waccabuc, NY
- Average sunshine days in December: 19.3 days
The month with the most sunshine days is January (22.5 days).
The month with the least sunshine days is June (13.3 days).
Average UV index in December
Waccabuc, NY
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Waccabuc, NY
- Average cloud cover in December: 50
The months with the most cloud cover are February, March and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Waccabuc, NY
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, July, August, September, October, November and December (6mi).
The months with the lowest visibility are May and June (5mi).
Waccabuc, New York, USA
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