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
As November makes way for December, Fairhaven's average high-temperature eases from a fresh 50.9°F (10.5°C) to an icy 42.4°F (5.8°C). Throughout December nights, Fairhaven experiences a consistent temperature average of 33.3°F (0.7°C).Humidity
The average relative humidity in December in Fairhaven is 76%.Rainfall
In Fairhaven, in December, it is raining for 9.5 days, with typically 1.69" (43mm) of accumulated precipitation. In Fairhaven, during the entire year, the rain falls for 133.2 days and collects up to 17.2" (437mm) of precipitation.Snowfall
Months with snowfall in Fairhaven, Massachusetts, are January through April, November and December. In Fairhaven, in December, during 3.2 snowfall days, 0.79" (20mm) of snow is typically accumulated. Throughout the year, there are 21.4 snowfall days, and 5.87" (149mm) of snow is accumulated.Ocean temperature
In Fairhaven, Massachusetts, in December, the average water temperature is 46.9°F (8.3°C).Note: Swimming in 46.9°F (8.3°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.
Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Fairhaven, Massachusetts.On the first day of the month, sunrise is at 6:51 am and sunset at 4:14 pm. On the last day of December, sunrise is at 7:10 am and sunset at 4:23 pm EST.
Sunshine
The average sunshine in December in Fairhaven is 4.9h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Fairhaven. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 2 in December translates into these instructions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Opt for tightly woven and loose clothing to enhance protection from the Sun. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
How cold is it in Fairhaven in December?
What is the average humidity in December in Fairhaven?
How much does it rain in Fairhaven in December?
How many days does it snow in December in Fairhaven?
What is the ocean temperature in December in Fairhaven?
What is the month with the shortest days in Fairhaven?
How many hours of daylight does Fairhaven have in December?
When is the sunrise / sunset in December in Fairhaven?
How many hours of sunshine does Fairhaven have in December?
What are the months with the lowest UV index in Fairhaven?
What is the UV index intensity in December in Fairhaven?
Average temperature in December
Fairhaven, MA
- Average high temperature in December: 42.4°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (36.3°F).
- Average low temperature in December: 33.3°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in December
Fairhaven, 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
Fairhaven, MA
- Average wind speed in December: 11.2mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (8mph).
Average humidity in December
Fairhaven, MA
- Average humidity in December: 76%
The months with the highest relative humidity are June and July (80%).
The months with the lowest relative humidity are March, April and November (74%).
Average rainfall in December
Fairhaven, MA
- Average rainfall in December: 1.69"
The wettest month (with the highest rainfall) is October (1.93").
The driest month (with the least rainfall) is September (1.06").
Average rainfall days in December
Fairhaven, MA
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is July (13.4 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in December
Fairhaven, MA
- Average snowfall in December: 0.79"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Fairhaven, MA
- Average snowfall days in December: 3.2 days
The month with the highest number of snowfall days is January (6.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in December
Fairhaven, 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
Fairhaven, 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 5min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Fairhaven, MA
- Average sunshine days in December: 18.3 days
The months with the most sunshine days are November and December (18.3 days).
The month with the least sunshine days is April (14.4 days).
Average UV index in December
Fairhaven, 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, November and December (UV index 2).
Average cloud cover in December
Fairhaven, MA
- Average cloud cover in December: 47
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
Fairhaven, 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).
Fairhaven, Massachusetts, USA
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