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 is characterized by a mild reduction in the average high-temperature, from a fresh 52.7°F (11.5°C) in November to a frosty 45.3°F (7.4°C). In Westhampton, December's low temperatures hover around a cold 38.1°F (3.4°C), reflecting a minor decrease from the daytime highs.Humidity
In Westhampton, the average relative humidity in December is 74%.Rainfall
In December, in Westhampton, New York, the rain falls for 11 days. Throughout December, 2.95" (75mm) of precipitation is accumulated. Throughout the year, in Westhampton, New York, there are 148 rainfall days, and 29.76" (756mm) of precipitation is accumulated.Snowfall
January through March, May and December are months with snowfall. December is the first month it typically snows in Westhampton. Throughout December, in the average 2.3 snowfall days, it receives 0.79" (20mm) of snow. Throughout the year, there are 12.9 snowfall days, and 4.45" (113mm) of snow is accumulated.Daylight
December has the shortest days of the year in Westhampton, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 6:56 am and sunset at 4:23 pm. On the last day of December, sunrise is at 7:14 am and sunset at 4:33 pm EST.
Sunshine
February and December, with an average of 4.8h of sunshine, are months with the least sunshine.UV index
January through March and December, with an average maximum UV index of 2, are months with the lowest UV index in Westhampton. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. 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
What is the usual temperature for Westhampton in December?
What is the average humidity in December in Westhampton?
How much does it rain in Westhampton in December?
When does it start to snow in Westhampton?
What is the month with the shortest days in Westhampton?
How many hours of daylight does Westhampton have in December?
What time are sunrise and sunset in December in Westhampton?
What are the months with the least sunshine in Westhampton?
How many hours of sunshine does Westhampton have in December?
When is the lowest UV index in Westhampton?
How high is the UV index in December in Westhampton?
Average temperature in December
Westhampton, NY
- Average high temperature in December: 45.3°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in December: 38.1°F
The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).
Average pressure in December
Westhampton, 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
Westhampton, NY
- Average wind speed in December: 15mph
The windiest month (with the highest average wind speed) is January (15.4mph).
The calmest month (with the lowest average wind speed) is July (10.2mph).
Average humidity in December
Westhampton, NY
- Average humidity in December: 74%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is November (72%).
Average rainfall in December
Westhampton, NY
- Average rainfall in December: 2.95"
The wettest month (with the highest rainfall) is October (3.07").
The driest month (with the least rainfall) is January (1.89").
Average rainfall days in December
Westhampton, NY
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in December
Westhampton, NY
- Average snowfall in December: 0.79"
The month with the highest snowfall is March (1.54").
The months with the least snowfall are April, June, July, August, September, October and November (0").
Average snowfall days in December
Westhampton, NY
- Average snowfall days in December: 2.3 days
The month with the highest number of snowfall days is February (3.9 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Westhampton, 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 5min
The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in December
Westhampton, NY
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is July (12.6 days).
Average UV index in December
Westhampton, 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
Westhampton, NY
- Average cloud cover in December: 50
The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in December
Westhampton, 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).
Westhampton, New York, USA
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