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 shift from November to December corresponds with a decrease in the average high-temperature, down to a subzero cold 30°F (-1.1°C) from a wintry 41.2°F (5.1°C). In Bristol, the expected average low-temperature for December is a still freezing cold 19.8°F (-6.8°C).Humidity
The average relative humidity in December is 84%.Rainfall
In Bristol, in December, it is raining for 12.3 days, with typically 2.36" (60mm) of accumulated precipitation. Throughout the year, there are 175.7 rainfall days, and 30.47" (774mm) of precipitation is accumulated.Snowfall
Months with snowfall in Bristol are January through May, October through December. In Bristol, in December, snow falls for 19 days, with typically accumulated 7.8" (198mm) of snow. In Bristol, during the entire year, snow falls for 96 days and aggregates up to 49.8" (1265mm) of snow.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year in Bristol.On the first day of December, sunrise is at 7:08 am and sunset at 4:15 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:23 pm EST.
Sunshine
The average sunshine in December is 3.4h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: In December, a regular UV index of 1 translates into these guidelines:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Heads up! The UV radiation from the Sun can almost be doubled 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 in Bristol?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Bristol have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Bristol have in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Bristol, VT
- Average high temperature in December: 30°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 (24.1°F).
- Average low temperature in December: 19.8°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in December
Bristol, VT
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Bristol, VT
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Bristol, VT
- Average humidity in December: 84%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in December
Bristol, VT
- Average rainfall in December: 2.36"
The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
Bristol, VT
- Average rainfall days in December: 12.3 days
The month with the highest number of rainy days is June (19.2 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in December
Bristol, VT
- Average snowfall in December: 7.8"
The month with the highest snowfall is February (11.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Bristol, VT
- Average snowfall days in December: 19 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
Bristol, VT
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 0min).
Average sunshine days in December
Bristol, VT
- Average sunshine days in December: 7.5 days
The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is February (5.7 days).
Average UV index in December
Bristol, VT
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Bristol, VT
- Average cloud cover in December: 66
The month with the most cloud cover is February (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in December
Bristol, VT
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February and March (4mi).
Bristol, Vermont, USA
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