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 subtly indicates a reduction in the average high-temperature, down to a frosty 43.5°F (6.4°C) from November's fresh 51.1°F (10.6°C). In December, a low-temperature average of 36.7°F (2.6°C) is characteristic of Yarmouth Port, marking a minor shift from daytime temperatures.Humidity
In Yarmouth Port, the average relative humidity in December is 75%.Rainfall
In Yarmouth Port, in December, during 11 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. Throughout the year, there are 129.6 rainfall days, and 13.94" (354mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April and December. December is the first month it typically snows in Yarmouth Port. Throughout December, in the average 4.2 snowfall days, it receives 0.43" (11mm) of snow. In Yarmouth Port, during the entire year, snow falls for 21.6 days and aggregates up to 2.17" (55mm) of snow.Daylight
December has the shortest days of the year in Yarmouth Port, with an average of 9h and 12min of daylight.On the first day of December in Yarmouth Port, sunrise is at 6:49 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 4:20 pm EST.
Sunshine
December has the least sunshine of the year in Yarmouth Port, with an average of 4.6h of sunshine.UV index
The months with the lowest UV index in Yarmouth Port, Massachusetts, 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 minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 2 during December translates into the following directions:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Frequently asked questions
How cold is December in Yarmouth Port?
What is the average humidity in December in Yarmouth Port?
How much does it rain in Yarmouth Port in December?
When does it start snowing in Yarmouth Port?
What is the month with the shortest days in Yarmouth Port?
How many hours of daylight does Yarmouth Port have in December?
When is the sunrise / sunset in December in Yarmouth Port?
What is the month with the least sunshine in Yarmouth Port?
How long on average sun shines in December in Yarmouth Port?
What are the months with the lowest UV index in Yarmouth Port?
What is the UV index reading in December in Yarmouth Port?
Average temperature in December
Yarmouth Port, MA
- Average high temperature in December: 43.5°F
The warmest month (with the highest average high temperature) is August (72.5°F).
The month with the lowest average high temperature is January (38.3°F).
- Average low temperature in December: 36.7°F
The month with the highest average low temperature is August (68.2°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).
Average pressure in December
Yarmouth Port, 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
Yarmouth Port, MA
- Average wind speed in December: 15.8mph
The windiest month (with the highest average wind speed) is January (16.4mph).
The calmest month (with the lowest average wind speed) is August (10.4mph).
Average humidity in December
Yarmouth Port, MA
- Average humidity in December: 75%
The months with the highest relative humidity are May, June and July (83%).
The month with the lowest relative humidity is November (74%).
Average rainfall in December
Yarmouth Port, MA
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is October (1.89").
The driest month (with the least rainfall) is August (0.94").
Average rainfall days in December
Yarmouth Port, MA
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is May (13.2 days).
The month with the least rainy days is February (8.1 days).
Average snowfall in December
Yarmouth Port, MA
- Average snowfall in December: 0.43"
The months with the highest snowfall are January and February (0.63").
The months with the least snowfall are May, June, July, August, September, October and November (0").
Average snowfall days in December
Yarmouth Port, MA
- Average snowfall days in December: 4.2 days
The month with the highest number of snowfall days is January (6.6 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
Yarmouth Port, 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 4min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in December
Yarmouth Port, MA
- Average sunshine days in December: 15.7 days
The month with the most sunshine days is September (18.5 days).
The month with the least sunshine days is February (14.8 days).
Average UV index in December
Yarmouth Port, 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
Yarmouth Port, MA
- Average cloud cover in December: 50
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Yarmouth Port, 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).
Yarmouth Port, Massachusetts, USA
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