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
December
Weather in December
Temperature
The onset of December coincides with a reduction in the average high-temperature, falling from a frosty 45.3°F (7.4°C) in November to an icy 35.1°F (1.7°C). An average low-temperature of 26.1°F (-3.3°C) characterizes Falmouth's December nights.Humidity
In December, the average relative humidity is 77%.Rainfall
In Falmouth, during December, the rain falls for 10.1 days and regularly aggregates up to 1.81" (46mm) of precipitation. In Falmouth, during the entire year, the rain falls for 132.8 days and collects up to 19.88" (505mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. In Falmouth, in December, snow falls for 6.2 days, with typically accumulated 1.97" (50mm) of snow. Throughout the year, there are 31.2 snowfall days, and 10.94" (278mm) of snow is accumulated.Daylight
The month with the shortest days in Falmouth is December, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 6:55 am and sunset at 4:05 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:13 pm EST.
Sunshine
December has the least sunshine of the year in Falmouth, with an average of 4.7h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December in Falmouth?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Falmouth have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Falmouth have in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Falmouth, ME
- Average high temperature in December: 35.1°F
The warmest month (with the highest average high temperature) is July (74.7°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in December: 26.1°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in December
Falmouth, ME
- Average pressure in December: 30.01"Hg
The months with the highest atmospheric pressure are September and November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Falmouth, ME
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in December
Falmouth, ME
- Average humidity in December: 77%
The months with the highest relative humidity are June and July (81%).
The month with the lowest relative humidity is November (75%).
Average rainfall in December
Falmouth, ME
- Average rainfall in December: 1.81"
The wettest month (with the highest rainfall) is October (2.28").
The driest month (with the least rainfall) is September (1.14").
Average rainfall days in December
Falmouth, ME
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is July (14.4 days).
The month with the least rainy days is January (6 days).
Average snowfall in December
Falmouth, ME
- Average snowfall in December: 1.97"
The month with the highest snowfall is February (2.83").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Falmouth, ME
- Average snowfall days in December: 6.2 days
The month with the highest number of snowfall days is February (7.7 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
Falmouth, ME
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in December
Falmouth, ME
- Average sunshine days in December: 16.5 days
The months with the most sunshine days are January and September (18.5 days).
The month with the least sunshine days is April (13 days).
Average UV index in December
Falmouth, ME
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Falmouth, ME
- Average cloud cover in December: 48
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Falmouth, ME
- 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).