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 move into December indicates a reduction in the average high-temperature, down from November's chilly 45.7°F (7.6°C) to a cold 36.3°F (2.4°C). Cliff Island experiences a steady nighttime temperature of 27.3°F (-2.6°C) throughout the month of December.Humidity
In December, the average relative humidity is 77%.Rainfall
In Cliff Island, in December, during 8.2 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. In Cliff Island, during the entire year, the rain falls for 117.6 days and collects up to 19.8" (503mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In December, in Cliff Island, it is snowing for 5.5 days. Throughout December, 2.05" (52mm) of snow is accumulated. In Cliff Island, during the entire year, snow falls for 28.5 days and aggregates up to 12.05" (306mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 0min of daylight.On the first day of December in Cliff Island, sunrise is at 6:54 am and sunset at 4:04 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:13 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 4.6h 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 in Cliff Island. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Frequently asked questions
How cold is December in Cliff Island?
What is the average humidity in December in Cliff Island?
How many days does it rain in December in Cliff Island?
How much does it snow in Cliff Island in December?
What is the month with the shortest days in Cliff Island?
How many hours of daylight does Cliff Island have in December?
When is the sunrise / sunset in December in Cliff Island?
What is the month with the least sunshine in Cliff Island?
How many hours of sunshine does Cliff Island have in December?
When is the lowest UV index in Cliff Island?
How high is the UV index in December in Cliff Island?
Average temperature in December
Cliff Island, ME
- Average high temperature in December: 36.3°F
The warmest month (with the highest average high temperature) is August (72.3°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in December: 27.3°F
The months with the highest average low temperature are July and August (61.3°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in December
Cliff Island, 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
Cliff Island, ME
- Average wind speed in December: 11.2mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in December
Cliff Island, ME
- Average humidity in December: 77%
The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is November (74%).
Average rainfall in December
Cliff Island, ME
- Average rainfall in December: 1.97"
The wettest month (with the highest rainfall) is October (2.28").
The driest month (with the least rainfall) is September (0.94").
Average rainfall days in December
Cliff Island, ME
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is July (14.5 days).
The month with the least rainy days is January (4.4 days).
Average snowfall in December
Cliff Island, ME
- Average snowfall in December: 2.05"
The month with the highest snowfall is February (3.39").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Cliff Island, ME
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Cliff Island, 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 36min).
Average sunshine days in December
Cliff Island, ME
- Average sunshine days in December: 17.3 days
The month with the most sunshine days is September (19 days).
The month with the least sunshine days is July (14.7 days).
Average UV index in December
Cliff Island, 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
Cliff Island, ME
- Average cloud cover in December: 49
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Cliff Island, 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).
Cliff Island, Maine, USA
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