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 sea temperature 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 minor decrease in temperature, transitioning from a fresh 50.9°F (10.5°C) in November to a cold 42.1°F (5.6°C). Ocean Grove cools down to an average low-temperature of 31.8°F (-0.1°C) throughout the month of December.Humidity
In Ocean Grove, the average relative humidity in December is 76%.Rainfall
In Ocean Grove, during December, the rain falls for 9.6 days and regularly aggregates up to 1.73" (44mm) of precipitation. Throughout the year, there are 135.4 rainfall days, and 18.31" (465mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. In Ocean Grove, during December, snow falls for 3.3 days and regularly aggregates up to 1.42" (36mm) of snow. Throughout the year, there are 21.2 snowfall days, and 7.17" (182mm) of snow is accumulated.Ocean temperature
In Ocean Grove, in December, the average water temperature is 47.8°F (8.8°C).Note: In 47.8°F (8.8°C), cold shock and rapid breathing can occur when swimming at temperatures below 50°F (10°C).
Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 6:53 am and sunset at 4:15 pm. On the last day of December, sunrise is at 7:11 am and sunset at 4:24 pm EST.
Sunshine
The months with the least sunshine are February and December, with an average of 4.9h of sunshine.UV index
The months with the lowest UV index are January through March and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Note well! The intensity of the Sun's UV rays 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 in Ocean Grove?
How many days does it rain in December?
How much does it snow in December?
What is the water temperature in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Ocean Grove, MA
- Average high temperature in December: 42.1°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in December: 31.8°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in December
Ocean Grove, MA
- Average pressure in December: 30.03"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Ocean Grove, MA
- Average wind speed in December: 10.3mph
The windiest months (with the highest average wind speed) are January, February and March (10.9mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity in December
Ocean Grove, MA
- Average humidity in December: 76%
The month with the highest relative humidity is June (80%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Ocean Grove, MA
- Average rainfall in December: 1.73"
The wettest month (with the highest rainfall) is October (1.97").
The driest month (with the least rainfall) is September (1.06").
Average rainfall days in December
Ocean Grove, MA
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is July (15 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in December
Ocean Grove, MA
- Average snowfall in December: 1.42"
The month with the highest snowfall is March (2.13").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Ocean Grove, MA
- Average snowfall days in December: 3.3 days
The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in December
Ocean Grove, MA
- Average sea temperature in December: 47.7°F
The best month for swimming (with the highest average sea temperature) is August (69.3°F).
The coldest month (with the lowest average sea temperature) is February (38.1°F).
Average daylight in December /
Average sunshine in December
Ocean Grove, 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 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in December
Ocean Grove, MA
- Average sunshine days in December: 17.6 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is April (13.6 days).
Average UV index in December
Ocean Grove, 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 and December (UV index 2).
Average cloud cover in December
Ocean Grove, MA
- Average cloud cover in December: 46
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Ocean Grove, 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).
Ocean Grove, Massachusetts, USA
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