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 beginning of December involves a decrease in the average high-temperature, transitioning from a chilly 45.5°F (7.5°C) in November to a wintry 35.2°F (1.8°C). During the month of December, South Bristol anticipates a mean low-temperature of 25.3°F (-3.7°C).Humidity
In South Bristol, the average relative humidity in December is 78%.Rainfall
December is the month with the most rainfall in South Bristol, Maine. Rain falls for 10.8 days and accumulates 3.5" (89mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. In South Bristol, in December, snow falls for 7 days, with typically accumulated 3.39" (86mm) of snow. Throughout the year, there are 40 snowfall days, and 20.08" (510mm) of snow is accumulated.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 South Bristol, sunrise is at 6:53 am and sunset at 4:01 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:10 pm EST.
Sunshine
The months with the least sunshine in South Bristol are February and 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 South Bristol. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 2 in December translates into these instructions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. To cut down UV radiation exposure by about half, sport a wide-brim hat. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in South Bristol?
What is the average humidity in December in South Bristol?
What is the rainiest month in South Bristol?
How much does it rain in South Bristol in December?
How much does it snow in South Bristol in December?
What is the month with the shortest days in South Bristol?
What is the average length of the day in December in South Bristol?
When are sunrise and sunset in December in South Bristol?
What are the months with the least sunshine in South Bristol?
How many hours of sunshine does South Bristol have in December?
When is the lowest UV index in South Bristol?
What is the UV index intensity in December in South Bristol?
Average temperature in December
South Bristol, ME
- Average high temperature in December: 35.2°F
The warmest months (with the highest average high temperature) are July and August (74.1°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in December: 25.3°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in December
South Bristol, ME
- Average pressure in December: 30.01"Hg
The months with the highest atmospheric pressure are September and November (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
South Bristol, ME
- Average wind speed in December: 10mph
The windiest months (with the highest average wind speed) are January and March (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in December
South Bristol, ME
- Average humidity in December: 78%
The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is November (76%).
Average rainfall in December
South Bristol, ME
- Average rainfall in December: 3.5"
The wettest month (with the highest rainfall) is December (3.5").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in December
South Bristol, ME
- Average rainfall days in December: 10.8 days
The month with the highest number of rainy days is April (15.1 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in December
South Bristol, ME
- Average snowfall in December: 3.39"
The month with the highest snowfall is January (5.28").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
South Bristol, ME
- Average snowfall days in December: 7 days
The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
South Bristol, 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 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).
Average sunshine days in December
South Bristol, ME
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is April (11.7 days).
Average UV index in December
South Bristol, ME
- Average UV index in December: 2
The month with the highest UV index is July (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 Bristol, ME
- Average cloud cover in December: 51
The months with the most cloud cover are February and March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
South Bristol, ME
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
South Bristol, Maine, USA
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