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
During Mount Holly's transition into December, the average high-temperature lessens, moving from a wintry 42.1°F (5.6°C) in November to a subzero cold 30.9°F (-0.6°C). Mount Holly records an average nighttime low of 21°F (-6.1°C) in December.Humidity
In December, the average relative humidity is 84%.Rainfall
In Mount Holly, during December, the rain falls for 7 days and regularly aggregates up to 1.65" (42mm) of precipitation. Throughout the year, in Mount Holly, there are 121.5 rainfall days, and 17.87" (454mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Mount Holly, during December, snow falls for 9.3 days and regularly aggregates up to 4.61" (117mm) of snow. In Mount Holly, Vermont, during the entire year, snow falls for 50.7 days and aggregates up to 25.31" (643mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 0min of daylight.On the first day of December in Mount Holly, Vermont, sunrise is at 7:04 am and sunset at 4:16 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:25 pm EST.
Sunshine
In December, the average sunshine in Mount Holly is 4h.UV index
December is the month with the lowest UV index in Mount Holly, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Mount Holly?
What is the average humidity in December in Mount Holly?
How many days does it rain in December in Mount Holly?
How many days does it snow in December in Mount Holly?
What is the month with the shortest days in Mount Holly?
What is the average length of the day in December in Mount Holly?
What time are sunrise and sunset in December in Mount Holly?
How long on average sun shines in December in Mount Holly?
When is the lowest UV index in Mount Holly?
What is the UV index reading in December in Mount Holly?
Average temperature in December
Mount Holly, VT
- Average high temperature in December: 30.9°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (25.2°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 (12.9°F).
Average pressure in December
Mount Holly, VT
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Mount Holly, VT
- Average wind speed in December: 7.2mph
The windiest months (with the highest average wind speed) are January, February and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Mount Holly, VT
- Average humidity in December: 84%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Mount Holly, VT
- Average rainfall in December: 1.65"
The wettest month (with the highest rainfall) is October (1.85").
The driest month (with the least rainfall) is September (1.06").
Average rainfall days in December
Mount Holly, VT
- Average rainfall days in December: 7 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in December
Mount Holly, VT
- Average snowfall in December: 4.61"
The month with the highest snowfall is February (6.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Mount Holly, VT
- Average snowfall days in December: 9.3 days
The month with the highest number of snowfall days is February (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mount Holly, VT
- 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 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in December
Mount Holly, VT
- Average sunshine days in December: 17.9 days
The month with the most sunshine days is November (19.1 days).
The months with the least sunshine days are June and July (14.4 days).
Average UV index in December
Mount Holly, VT
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Mount Holly, VT
- Average cloud cover in December: 58
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in December
Mount Holly, VT
- Average visibility in December: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Mount Holly, Vermont, USA
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