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
Monument Beach's progression into December involves a minor drop in the average high-temperature, slightly receding from a fresh 50.9°F (10.5°C) in November to a wintry 42.4°F (5.8°C). Monument Beach maintains an average of approximately a still cold 34.2°F (1.2°C) during December nights, with only a minimal decrease from the daytime temperature.Humidity
In Monument Beach, Massachusetts, the average relative humidity in December is 76%.Rainfall
The month with the most rainfall is December, when the rain falls for 12.5 days and typically aggregates up to 3.58" (91mm) of precipitation.Snowfall
Months with snowfall in Monument Beach, Massachusetts, are January through April, October through December. In Monument Beach, in December, snow falls for 3.5 days, with typically accumulated 1.26" (32mm) of snow. Throughout the year, there are 21.7 snowfall days, and 8.43" (214mm) of snow is accumulated.Ocean temperature
In December, the average ocean temperature is 46.9°F (8.3°C).Note: You can swim in 46.9°F (8.3°C) below 50°F (10°C) with proper thermal wear; failing that, the cold shock and respiratory challenges are nearly certain. A short span at 55.4°F (13°C) without it is tough.
Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 6:50 am and sunset at 4:12 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 4:22 pm EST.
Sunshine
February and December, with an average of 4.8h of sunshine, are months with the least sunshine in Monument Beach.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 reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. It's recommended to limit sun exposure when its radiation is at its peak during midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is December in Monument Beach?
What is the average humidity in December in Monument Beach?
What is the wettest month in Monument Beach?
How much does it rain in Monument Beach in December?
How many days does it snow in December in Monument Beach?
What is the water temperature in December in Monument Beach?
What is the month with the shortest days in Monument Beach?
How many hours of daylight does Monument Beach have in December?
What time are sunrise and sunset in December in Monument Beach?
What is the month with the least sunshine in Monument Beach?
How many hours of sunshine does Monument Beach have in December?
What is the month with the lowest UV index in Monument Beach?
What is the UV index reading in December in Monument Beach?
Average temperature in December
Monument Beach, MA
- Average high temperature in December: 42.4°F
The warmest month (with the highest average high temperature) is July (75.6°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is August (66.7°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).
Average pressure in December
Monument Beach, 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
Monument Beach, MA
- Average wind speed in December: 13mph
The windiest month (with the highest average wind speed) is January (13.7mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity in December
Monument Beach, MA
- Average humidity in December: 76%
The months with the highest relative humidity are June and July (81%).
The months with the lowest relative humidity are March and November (74%).
Average rainfall in December
Monument Beach, MA
- Average rainfall in December: 3.58"
The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in December
Monument Beach, MA
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (9 days).
Average snowfall in December
Monument Beach, MA
- Average snowfall in December: 1.26"
The months with the highest snowfall are February and March (2.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Monument Beach, MA
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in December
Monument Beach, MA
- Average sea temperature in December: 46.9°F
The best month for swimming (with the highest average sea temperature) is August (68.4°F).
The coldest month (with the lowest average sea temperature) is February (38.2°F).
Average daylight in December /
Average sunshine in December
Monument Beach, 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 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in December
Monument Beach, MA
- Average sunshine days in December: 15.6 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is April (12.5 days).
Average UV index in December
Monument Beach, MA
- Average UV index in December: 2
The months with the highest UV index are 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
Monument Beach, MA
- Average cloud cover in December: 48
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Monument Beach, 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).
Monument Beach, Massachusetts, USA
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