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
The transition into December indicates a reduction in the average high-temperature, down to a wintry 37.9°F (3.3°C) from November's chilly 48.2°F (9°C). West Newbury records an average nighttime low-temperature of 27.7°F (-2.4°C) throughout December.Humidity
In December, the average relative humidity is 77%.Rainfall
In West Newbury, during December, the rain falls for 4.8 days and regularly aggregates up to 0.51" (13mm) of precipitation. Throughout the year, in West Newbury, Massachusetts, there are 78.3 rainfall days, and 5.43" (138mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. The month with the most snowfall is December, when snow falls for 2.6 days and typically aggregates up to 0.71" (18mm) of snow.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:55 am and sunset at 4:10 pm. On the last day of December, in West Newbury, sunrise is at 7:14 am and sunset at 4:20 pm EST.
Sunshine
In West Newbury, the average sunshine in December is 4.9h.UV index
The months with the lowest UV index in West Newbury are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 2 during December translates into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The solar radiation around mid-day is intense; avoid the Sun and stay safe. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How many days does it rain in December?
When does it snow the most?
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 in West Newbury?
What time are sunrise and sunset in December?
How many hours of sunshine does West Newbury have in December?
What are the months with the lowest UV index?
What is the UV index reading in December in West Newbury?
Average temperature in December
West Newbury, MA
- Average high temperature in December: 37.9°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in December: 27.7°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in December
West Newbury, MA
- Average pressure in December: 30.03"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
West Newbury, MA
- Average wind speed in December: 8.9mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
West Newbury, MA
- Average humidity in December: 77%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).
Average rainfall in December
West Newbury, MA
- Average rainfall in December: 0.51"
The wettest month (with the highest rainfall) is November (0.67").
The driest month (with the least rainfall) is September (0.2").
Average rainfall days in December
West Newbury, MA
- Average rainfall days in December: 4.8 days
The month with the highest number of rainy days is July (8.8 days).
The month with the least rainy days is January (3.6 days).
Average snowfall in December
West Newbury, MA
- Average snowfall in December: 0.71"
The month with the highest snowfall is December (0.71").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
West Newbury, MA
- Average snowfall days in December: 2.6 days
The month with the highest number of snowfall days is February (5.3 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
West Newbury, MA
- 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 5min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
West Newbury, MA
- Average sunshine days in December: 23 days
The month with the most sunshine days is January (24.5 days).
The month with the least sunshine days is April (18.4 days).
Average UV index in December
West Newbury, MA
- 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, November and December (UV index 2).
Average cloud cover in December
West Newbury, MA
- Average cloud cover in December: 47
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
West Newbury, MA
- 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).
West Newbury, Massachusetts, USA
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