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
South Orleans's weather subtly changes with the onset of December, barely falling from a fresh 51.3°F (10.7°C) in November to a chilly 44.1°F (6.7°C). A minimal decline in temperature from daytime highs is anticipated in South Orleans throughout the December nights, averaging a cold 37.6°F (3.1°C).Humidity
In December, the average relative humidity in South Orleans is 75%.Rainfall
In December, in South Orleans, the rain falls for 6 days. Throughout December, 0.67" (17mm) of precipitation is accumulated. Throughout the year, there are 78.2 rainfall days, and 5.75" (146mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. The month with the most snowfall in South Orleans is December, when snow falls for 2.4 days and typically aggregates up to 0.31" (8mm) of snow.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 6:48 am and sunset at 4:10 pm. On the last day of December, in South Orleans, Massachusetts, sunrise is at 7:07 am and sunset at 4:19 pm EST.
Sunshine
With an average of 4.3h of sunshine, December has the least sunshine of the year.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 minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, a daily UV index of 2 turns into the following recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Frequently asked questions
Is it cold in South Orleans during December?
What is the average humidity in December in South Orleans?
How many days does it rain in December in South Orleans?
What is the snowiest month in South Orleans?
How many days does it snow in December in South Orleans?
What is the month with the shortest days in South Orleans?
What is the average length of the day in December in South Orleans?
When is the sunrise / sunset in December in South Orleans?
What is the month with the least sunshine in South Orleans?
How long on average sun shines in December in South Orleans?
When is the lowest UV index in South Orleans?
What is the UV index reading in December in South Orleans?
Average temperature in December
South Orleans, MA
- Average high temperature in December: 44.1°F
The warmest month (with the highest average high temperature) is August (71.4°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in December: 37.6°F
The month with the highest average low temperature is August (67.8°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in December
South Orleans, MA
- Average pressure in December: 30.02"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
South Orleans, MA
- Average wind speed in December: 17.6mph
The windiest month (with the highest average wind speed) is January (18.3mph).
The calmest month (with the lowest average wind speed) is August (11.4mph).
Average humidity in December
South Orleans, MA
- Average humidity in December: 75%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (74%).
Average rainfall in December
South Orleans, MA
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is October (0.87").
The driest months (with the least rainfall) are July and August (0.28").
Average rainfall days in December
South Orleans, MA
- Average rainfall days in December: 6 days
The month with the highest number of rainy days is April (8.2 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in December
South Orleans, MA
- Average snowfall in December: 0.31"
The month with the highest snowfall is December (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
South Orleans, MA
- Average snowfall days in December: 2.4 days
The month with the highest number of snowfall days is January (3.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
South Orleans, 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 2min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in December
South Orleans, MA
- Average sunshine days in December: 21.8 days
The month with the most sunshine days is September (23.4 days).
The month with the least sunshine days is February (19.8 days).
Average UV index in December
South Orleans, 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
South Orleans, MA
- Average cloud cover in December: 54
The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
South Orleans, 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).
South Orleans, Massachusetts, USA
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