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 onset of December is marked by a decrease in temperature, transitioning from a frosty 49.6°F (9.8°C) in November to an icy 40.5°F (4.7°C). Holbrook, during December nights, observes an average temperature of 30.7°F (-0.7°C).Humidity
In Holbrook, the average relative humidity in December is 76%.Rainfall
In Holbrook, in December, during 11.4 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. Throughout the year, there are 149.9 rainfall days, and 28.62" (727mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. In Holbrook, in December, snow falls for 5 days, with typically accumulated 2.91" (74mm) of snow. Throughout the year, there are 31 snowfall days, and 14.88" (378mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:53 am and sunset at 4:13 pm. On the last day of December, sunrise is at 7:12 am and sunset at 4:22 pm EST.
Sunshine
The average sunshine in December is 4.8h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: An average UV index of 2 in December transforms into this advice:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in December?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December in Holbrook?
What is the month with the shortest days?
How many hours of daylight does Holbrook have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Holbrook have in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Holbrook, MA
- Average high temperature in December: 40.5°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in December: 30.7°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in December
Holbrook, 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 (29.93"Hg).
Average wind speed in December
Holbrook, MA
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in December
Holbrook, MA
- Average humidity in December: 76%
The months with the highest relative humidity are January, February, June, September and October (77%).
The month with the lowest relative humidity is April (71%).
Average rainfall in December
Holbrook, MA
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is April (3.11").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in December
Holbrook, MA
- Average rainfall days in December: 11.4 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in December
Holbrook, MA
- Average snowfall in December: 2.91"
The month with the highest snowfall is February (3.86").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Holbrook, MA
- Average snowfall days in December: 5 days
The month with the highest number of snowfall days is February (8 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
Holbrook, MA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Holbrook, MA
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in December
Holbrook, 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
Holbrook, MA
- Average cloud cover in December: 48
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Holbrook, 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).
Holbrook, Massachusetts, USA
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