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
With the onset of December, Sinclair's average high-temperature adjusts, receding from November's wintry 36.5°F (2.5°C) to a subzero cold 23.9°F (-4.5°C). During December, the nighttime temperature averages to an extreme cold 12.2°F (-11°C).Humidity
In Sinclair, the average relative humidity in December is 90%.Rainfall
In Sinclair, in December, it is raining for 7.8 days, with typically 2.76" (70mm) of accumulated precipitation. Throughout the year, there are 140.8 rainfall days, and 30.12" (765mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Sinclair, during December, snow falls for 17.8 days and regularly aggregates up to 12.28" (312mm) of snow. In Sinclair, during the entire year, snow falls for 107.8 days and aggregates up to 71.34" (1812mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 36min of daylight.On the first day of December, sunrise is at 6:59 am and sunset at 3:45 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 3:53 pm EST.
Sunshine
In Sinclair, the average sunshine in December is 2.9h.UV index
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 1 during December leads to these advisories:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Around midday, solar radiation is most harmful; hence, exposure should be limited. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Sinclair have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Sinclair have in December?
What is the month with the lowest UV index in Sinclair?
How high is the UV index in December?
Average temperature in December
Sinclair, ME
- Average high temperature in December: 23.9°F
The warmest month (with the highest average high temperature) is July (74.3°F).
The month with the lowest average high temperature is January (18°F).
- Average low temperature in December: 12.2°F
The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is January (2.8°F).
Average pressure in December
Sinclair, ME
- Average pressure in December: 30"Hg
The months with the highest atmospheric pressure are March, September and November (30.01"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Sinclair, ME
- Average wind speed in December: 7.7mph
The windiest months (with the highest average wind speed) are January and February (8.2mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in December
Sinclair, ME
- Average humidity in December: 90%
The month with the highest relative humidity is March (94%).
The month with the lowest relative humidity is May (76%).
Average rainfall in December
Sinclair, ME
- Average rainfall in December: 2.76"
The wettest month (with the highest rainfall) is April (2.95").
The driest month (with the least rainfall) is February (1.97").
Average rainfall days in December
Sinclair, ME
- Average rainfall days in December: 7.8 days
The month with the highest number of rainy days is July (17.1 days).
The months with the least rainy days are January and February (4.3 days).
Average snowfall in December
Sinclair, ME
- Average snowfall in December: 12.28"
The month with the highest snowfall is January (14.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Sinclair, ME
- Average snowfall days in December: 17.8 days
The month with the highest number of snowfall days is January (21.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sinclair, ME
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 2h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 6min).
Average sunshine days in December
Sinclair, ME
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is April (7.9 days).
Average UV index in December
Sinclair, ME
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in December
Sinclair, ME
- Average cloud cover in December: 70
The month with the most cloud cover is February (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in December
Sinclair, ME
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March, April and December (4mi).
Sinclair, Maine, USA
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