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
Start of December brings a shift in the average high-temperature, falling from November's icy 42.6°F (5.9°C) to a subzero cold 31.3°F (-0.4°C). Bristol experiences a consistent average temperature of 21°F (-6.1°C) throughout the nights in December.Humidity
In Bristol, New Hampshire, the average relative humidity in December is 82%.Rainfall
In December, the rain falls for 11.3 days. Throughout December, 2.6" (66mm) of precipitation is accumulated. Throughout the year, there are 157.6 rainfall days, and 27.72" (704mm) of precipitation is accumulated.Snowfall
Months with snowfall in Bristol are January through May, October through December. In Bristol, in December, during 11.8 snowfall days, 6.38" (162mm) of snow is typically accumulated. Throughout the year, in Bristol, New Hampshire, there are 64.6 snowfall days, and 35.98" (914mm) 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 the month, sunrise is at 7:00 am and sunset at 4:11 pm. On the last day of December, in Bristol, New Hampshire, sunrise is at 7:20 am and sunset at 4:20 pm EST.
Sunshine
The average sunshine in December in Bristol is 4.3h.UV index
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 2 in December interprets into the following advice:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Frequently asked questions
How cold is December in Bristol?
What is the average humidity in December in Bristol?
How much does it rain in Bristol in December?
How many days does it snow in December in Bristol?
What is the month with the shortest days in Bristol?
How many hours of daylight does Bristol have in December?
What time are sunrise and sunset in December in Bristol?
How long on average sun shines in December in Bristol?
What are the months with the lowest UV index in Bristol?
How high is the UV index in December in Bristol?
Average temperature in December
Bristol, NH
- Average high temperature in December: 31.3°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (25.7°F).
- Average low temperature in December: 21°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in December
Bristol, NH
- Average pressure in December: 30.04"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, NH
- Average wind speed in December: 6.6mph
The windiest months (with the highest average wind speed) are January and February (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Bristol, NH
- Average humidity in December: 82%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Bristol, NH
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is October (3.15").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
Bristol, NH
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is April (15.7 days).
The month with the least rainy days is January (10.1 days).
Average snowfall in December
Bristol, NH
- Average snowfall in December: 6.38"
The month with the highest snowfall is February (9.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Bristol, NH
- Average snowfall days in December: 11.8 days
The month with the highest number of snowfall days is January (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Bristol, NH
- 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 2min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in December
Bristol, NH
- Average sunshine days in December: 13.3 days
The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is February (10.2 days).
Average UV index in December
Bristol, NH
- Average UV index in December: 2
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, February, March, October, November and December (UV index 2).
Average cloud cover in December
Bristol, NH
- Average cloud cover in December: 54
The months with the most cloud cover are February and March (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in December
Bristol, NH
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February, March and September (4mi).
Bristol, New Hampshire, USA
Weather forecast for your location
2. Allow the app to use your location
