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 ushers in a slight temperature change, with average high-temperatures reducing from November's frosty 45.5°F (7.5°C) to an icy 34.3°F (1.3°C). Throughout December, Watervliet encounters an average temperature drop to a subzero cold 24.3°F (-4.3°C).Humidity
In December, the average relative humidity is 81%.Rainfall
In Watervliet, in December, it is raining for 12.1 days, with typically 2.72" (69mm) of accumulated precipitation. Throughout the year, there are 162.8 rainfall days, and 31.02" (788mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Watervliet, in December, during 8.6 snowfall days, 5.55" (141mm) of snow is typically accumulated. Throughout the year, in Watervliet, there are 50.4 snowfall days, and 27.2" (691mm) of snow is accumulated.Daylight
December has the shortest days of the year in Watervliet, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:06 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:31 pm EST.
Sunshine
In December, the average sunshine is 4.3h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Watervliet. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 2 in December translates into the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
How cold is December in Watervliet?
What is the average humidity in December in Watervliet?
How many days does it rain in December in Watervliet?
How many days does it snow in December in Watervliet?
What is the month with the shortest days in Watervliet?
How many hours of daylight does Watervliet have in December?
What time are sunrise and sunset in December in Watervliet?
How many hours of sunshine does Watervliet have in December?
What are the months with the lowest UV index in Watervliet?
What is the UV index intensity in December in Watervliet?
Average temperature in December
Watervliet, NY
- Average high temperature in December: 34.3°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in December: 24.3°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in December
Watervliet, 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 (29.92"Hg).
Average wind speed in December
Watervliet, NY
- Average wind speed in December: 7.6mph
The windiest months (with the highest average wind speed) are January, February and March (8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Watervliet, NY
- Average humidity in December: 81%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Watervliet, NY
- Average rainfall in December: 2.72"
The wettest month (with the highest rainfall) is October (3.19").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in December
Watervliet, NY
- Average rainfall days in December: 12.1 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in December
Watervliet, NY
- Average snowfall in December: 5.55"
The month with the highest snowfall is February (7.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Watervliet, NY
- Average snowfall days in December: 8.6 days
The month with the highest number of snowfall days is January (14.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Watervliet, NY
- Average daylight in December: 9h and 1min
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: 4h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in December
Watervliet, NY
- Average sunshine days in December: 14.1 days
The month with the most sunshine days is September (17.3 days).
The month with the least sunshine days is April (10.6 days).
Average UV index in December
Watervliet, NY
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Watervliet, NY
- Average cloud cover in December: 54
The month with the most cloud cover is February (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in December
Watervliet, NY
- Average visibility in December: 6mi
The months with the highest visibility are April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, March, August and September (5mi).
Watervliet, New York, USA
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