December weather forecastBretton Woods, NH
December
Weather in December
In the final month of the year, Bretton Woods finds itself engulfed in deep winter. The weather further cools down from November and marks the return of the more severe winter conditions experienced at the onset of the year. Snow envelops the town, redefining the landscape into a serene white panorama. Icy winds become a constant companion whilst visibility often diminishes due to more frequent snowfall and foggy conditions. The progression towards the end of December paves the way for the imminent frosty weather in January, thereby completing a full annual weather cycle.Temperature
As Bretton Woods enters December, the average high-temperature decreases from the an icy 38.3°F (3.5°C) of November to a freezing cold 27.1°F (-2.7°C). In Bretton Woods, December's nights observe an average temperature dip to 17.1°F (-8.3°C).Humidity
The average relative humidity in December is 86%.Rainfall
In Bretton Woods, in December, during 8 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. Throughout the year, there are 152.5 rainfall days, and 34.72" (882mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Bretton Woods, in December, snow falls for 21 days, with typically accumulated 13.5" (343mm) of snow. Throughout the year, there are 120.8 snowfall days, and 97.17" (2468mm) of snow is accumulated.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:01 am and sunset at 4:08 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:16 pm EST.
Sunshine
In Bretton Woods, the average sunshine in December is 3.1h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 1 during December, leads to the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. When the Sun is at its strongest around midday, find shade and limit exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. 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
Average temperature in December
Bretton Woods, NH
- Average high temperature in December: 27.1°F
The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is January (21.9°F).
- Average low temperature in December: 17.1°F
The month with the highest average low temperature is July (54.1°F).
The coldest month (with the lowest average low temperature) is January (8.6°F).
Average pressure in December
Bretton Woods, NH
- Average pressure in December: 30.03"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Bretton Woods, NH
- Average wind speed in December: 6.6mph
The windiest months (with the highest average wind speed) are January and February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in December
Bretton Woods, NH
- Average humidity in December: 86%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (77%).
Average rainfall in December
Bretton Woods, NH
- Average rainfall in December: 3.15"
The wettest month (with the highest rainfall) is October (3.62").
The driest month (with the least rainfall) is September (2.24").
Average rainfall days in December
Bretton Woods, NH
- Average rainfall days in December: 8 days
The month with the highest number of rainy days is July (19.1 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in December
Bretton Woods, NH
- Average snowfall in December: 13.5"
The month with the highest snowfall is February (17.44").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Bretton Woods, NH
- Average snowfall days in December: 21 days
The month with the highest number of snowfall days is January (22.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Bretton Woods, NH
- Average daylight in December: 8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 3h and 6min
The months with the most sunshine are July and August (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 42min).
Average sunshine days in December
Bretton Woods, NH
- Average sunshine days in December: 8.4 days
The month with the most sunshine days is September (14.1 days).
The month with the least sunshine days is February (5.8 days).
Average UV index in December
Bretton Woods, NH
- 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 and December (UV index 1).
Average cloud cover in December
Bretton Woods, NH
- Average cloud cover in December: 71
The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 43).
Average visibility in December
Bretton Woods, NH
- Average visibility in December: 4mi
The months with the highest visibility are May, June and July (5mi).
The months with the lowest visibility are January, February, March, April, August, September, October, November and December (4mi).
