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
December signifies a minor drop in average high-temperature, transitioning from a fresh 50.9°F (10.5°C) in November to a chilly 43.3°F (6.3°C). December nights in Cotuit anticipate an average temperature of 35.6°F (2°C), a modest decline from the daytime.Humidity
The average relative humidity in December in Cotuit is 75%.Rainfall
December is the month with the most rainfall. Rain falls for 12.7 days and accumulates 3.7" (94mm) of precipitation.Snowfall
Months with snowfall in Cotuit are January through April, November and December. In Cotuit, Massachusetts, during December, snow falls for 3.5 days and regularly aggregates up to 0.91" (23mm) of snow. Throughout the year, there are 21 snowfall days, and 7.05" (179mm) of snow is accumulated.Ocean temperature
In Cotuit, the average seawater temperature in December is 46°F (7.8°C).Note: Staying in 46°F (7.8°C) waters for just a few moments at 55.4°F (13°C) can be harrowing, and below 50°F (10°C) poses breathing and cold shock risks, depending on individual tolerance.
Daylight
The month with the shortest days in Cotuit is December, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 6:49 am and sunset at 4:12 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 4:21 pm EST.
Sunshine
The average sunshine in December is 4.7h.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 low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 2 in December translates into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
How cold is it in Cotuit in December?
What is the average humidity in December in Cotuit?
What is the rainiest month in Cotuit?
How many days does it rain in December in Cotuit?
How many days does it snow in December in Cotuit?
What is the ocean temperature in December in Cotuit?
What is the month with the shortest days in Cotuit?
What is the average length of the day in December in Cotuit?
When is the sunrise / sunset in December in Cotuit?
How long on average sun shines in December in Cotuit?
What are the months with the lowest UV index in Cotuit?
What is the UV index reading in December in Cotuit?
Average temperature in December
Cotuit, MA
- Average high temperature in December: 43.3°F
The warmest month (with the highest average high temperature) is August (73.6°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in December: 35.6°F
The month with the highest average low temperature is August (68.4°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in December
Cotuit, 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
Cotuit, MA
- Average wind speed in December: 14.9mph
The windiest month (with the highest average wind speed) is January (15.3mph).
The calmest month (with the lowest average wind speed) is August (9.9mph).
Average humidity in December
Cotuit, MA
- Average humidity in December: 75%
The months with the highest relative humidity are May, June and July (82%).
The month with the lowest relative humidity is November (74%).
Average rainfall in December
Cotuit, MA
- Average rainfall in December: 3.7"
The wettest month (with the highest rainfall) is December (3.7").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
Cotuit, MA
- Average rainfall days in December: 12.7 days
The month with the highest number of rainy days is April (15.6 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in December
Cotuit, MA
- Average snowfall in December: 0.91"
The month with the highest snowfall is March (2.36").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Cotuit, MA
- Average snowfall days in December: 3.5 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in December
Cotuit, MA
- Average sea temperature in December: 46.1°F
The best month for swimming (with the highest average sea temperature) is August (67.5°F).
The coldest month (with the lowest average sea temperature) is March (39°F).
Average daylight in December /
Average sunshine in December
Cotuit, MA
- Average daylight in December: 9h and 1min
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 12min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Cotuit, MA
- Average sunshine days in December: 15.1 days
The month with the most sunshine days is September (16.7 days).
The month with the least sunshine days is April (13 days).
Average UV index in December
Cotuit, 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
Cotuit, MA
- Average cloud cover in December: 50
The months with the most cloud cover are March and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Cotuit, 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).
Cotuit, Massachusetts, USA
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