December weather forecastThe Glen, NH
December
Weather in December
December, the first month of the winter in The Glen, is also a subzero cold month, with an average temperature varying between 26.6°F (-3°C) and 15.4°F (-9.2°C).Temperature
The onset of December comes with a shift in the average high-temperature, falling from a cold 37.9°F (3.3°C) in November to a freezing cold 26.6°F (-3°C). During the nights in December, The Glen experiences a consistent average temperature of 15.4°F (-9.2°C).Humidity
In The Glen, the average relative humidity in December is 88%.Rainfall
In December, the rain falls for 8.5 days. Throughout December, 2.44" (62mm) of precipitation is accumulated. In The Glen, during the entire year, the rain falls for 154.3 days and collects up to 30.87" (784mm) of precipitation.Snowfall
Months with snowfall in The Glen are January through May, October through December. In December, it is snowing for 20.5 days. Throughout December, 10.16" (258mm) of snow is accumulated. In The Glen, during the entire year, snow falls for 107.4 days and aggregates up to 63.86" (1622mm) of snow.Daylight
The month with the shortest days in The Glen is December, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:04 am and sunset at 4:04 pm. On the last day of December, sunrise is at 7:23 am and sunset at 4:13 pm EST.
Sunshine
In The Glen, the average sunshine in December is 2.6h.UV index
The months with the lowest UV index in The Glen are January through March and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.Note: The UV index of 1 during December leads to these advisories:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
The Glen, NH
- Average high temperature in December: 26.6°F
The warmest month (with the highest average high temperature) is July (74.5°F).
The month with the lowest average high temperature is January (21°F).
- Average low temperature in December: 15.4°F
The month with the highest average low temperature is July (53.4°F).
The coldest month (with the lowest average low temperature) is January (7.3°F).
Average pressure in December
The Glen, 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 (29.9"Hg).
Average wind speed in December
The Glen, NH
- Average wind speed in December: 6.9mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
The Glen, NH
- Average humidity in December: 88%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (77%).
Average rainfall in December
The Glen, NH
- Average rainfall in December: 2.44"
The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is February (2.01").
Average rainfall days in December
The Glen, NH
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in December
The Glen, NH
- Average snowfall in December: 10.16"
The month with the highest snowfall is January (12.4").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
The Glen, NH
- Average snowfall days in December: 20.5 days
The month with the highest number of snowfall days is February (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
The Glen, NH
- Average daylight in December: 8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 2h and 36min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The months with the least sunshine are January and February (Average sunshine: 2h and 6min).
Average sunshine days in December
The Glen, NH
- Average sunshine days in December: 8.3 days
The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is February (6.2 days).
Average UV index in December
The Glen, 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, March and December (UV index 1).
Average cloud cover in December
The Glen, NH
- Average cloud cover in December: 76
The month with the most cloud cover is February (Cloud cover 81).
The month with the least cloud cover is July (Cloud cover 43).
Average visibility in December
The Glen, 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).
