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's onset brings a negligible change in high-temperatures, falling from a fresh 52.5°F (11.4°C) in November to a frosty 44.8°F (7.1°C). The December nights in Bellport show a slight decrease to a mean low-temperature of 37°F (2.8°C).Humidity
In December, the average relative humidity in Bellport is 74%.Rainfall
The month with the most rainfall is December, when the rain falls for 12.8 days and typically aggregates up to 3.31" (84mm) of precipitation.Snowfall
Months with snowfall in Bellport, New York, are January through April, November and December. In Bellport, during December, snow falls for 3.4 days and regularly aggregates up to 0.63" (16mm) of snow. In Bellport, during the entire year, snow falls for 17.9 days and aggregates up to 4.57" (116mm) 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 6:57 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:34 pm EST.
Sunshine
In Bellport, the average sunshine in December is 4.9h.UV index
January through March and December, with an average maximum UV index of 2, are months with the lowest UV index in Bellport. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.Note: In December, a regular UV index of 2 translates into these guidelines:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Frequently asked questions
What is the average December temperature in Bellport?
What is the average humidity in December in Bellport?
What is the rainiest month in Bellport?
How much does it rain in Bellport in December?
How many days does it snow in December in Bellport?
What is the month with the shortest days in Bellport?
What is the average length of the day in December in Bellport?
What time are sunrise and sunset in December in Bellport?
How long on average sun shines in December in Bellport?
When is the lowest UV index in Bellport?
What is the UV index reading in December in Bellport?
Average temperature in December
Bellport, NY
- Average high temperature in December: 44.8°F
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in December: 37°F
The months with the highest average low temperature are July and August (71.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in December
Bellport, 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
Bellport, NY
- Average wind speed in December: 14mph
The windiest month (with the highest average wind speed) is January (14.5mph).
The calmest months (with the lowest average wind speed) are July and August (9.6mph).
Average humidity in December
Bellport, NY
- Average humidity in December: 74%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is November (71%).
Average rainfall in December
Bellport, NY
- Average rainfall in December: 3.31"
The wettest month (with the highest rainfall) is December (3.31").
The driest months (with the least rainfall) are January, February and September (2.01").
Average rainfall days in December
Bellport, NY
- Average rainfall days in December: 12.8 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (9 days).
Average snowfall in December
Bellport, NY
- Average snowfall in December: 0.63"
The month with the highest snowfall is January (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Bellport, NY
- Average snowfall days in December: 3.4 days
The month with the highest number of snowfall days is February (5.4 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
Bellport, 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 months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Bellport, NY
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is February (12.8 days).
Average UV index in December
Bellport, 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
Bellport, NY
- Average cloud cover in December: 49
The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in December
Bellport, 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).
Bellport, New York, USA
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