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 arrival of December corresponds with a reduction in the average high-temperature, down from November's cold 38.3°F (3.5°C) to a freezing cold 27.1°F (-2.7°C). Twin Mountain witnesses an average low-temperature of 17.1°F (-8.3°C) throughout the month of December.Humidity
In Twin Mountain, the average relative humidity in December is 86%.Rainfall
In December, in Twin Mountain, the rain falls for 8 days. Throughout December, 3.15" (80mm) of precipitation is accumulated. In Twin Mountain, during the entire year, the rain falls for 152.5 days and collects up to 34.72" (882mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, in Twin Mountain, New Hampshire, it is snowing for 21 days. Throughout December, 13.5" (343mm) of snow is accumulated. Throughout the year, there are 120.8 snowfall days, and 97.17" (2468mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 54min of daylight.On the first day of December in Twin Mountain, sunrise is at 7:02 am and sunset at 4:08 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:17 pm EST.
Sunshine
In December, the average sunshine is 3.1h.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: An average UV index of 1 in December transforms into this advice:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Twin Mountain?
What is the average humidity in December in Twin Mountain?
How much does it rain in Twin Mountain in December?
How many days does it snow in December in Twin Mountain?
What is the month with the shortest days in Twin Mountain?
What is the average length of the day in December in Twin Mountain?
When is the sunrise / sunset in December in Twin Mountain?
How many hours of sunshine does Twin Mountain have in December?
What is the month with the lowest UV index in Twin Mountain?
What is the UV index intensity in December in Twin Mountain?
Average temperature in December
Twin Mountain, 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
Twin Mountain, 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
Twin Mountain, 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
Twin Mountain, 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
Twin Mountain, 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
Twin Mountain, 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
Twin Mountain, 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
Twin Mountain, 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
Twin Mountain, NH
- Average daylight in December: 8h and 5min
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 1min
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
Twin Mountain, 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
Twin Mountain, 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
Twin Mountain, 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
Twin Mountain, 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).
Twin Mountain, New Hampshire, USA
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