December weather forecastGranville, VT
December
Weather in December
December, the first month of the winter in Granville, is still a freezing cold month, with an average temperature varying between 28.9°F (-1.7°C) and 18.7°F (-7.4°C).Temperature
The decrease of average high-temperatures is mild in December, with a decline from an icy 40.1°F (4.5°C) in November to a subzero cold 28.9°F (-1.7°C). During the December nights, an average temperature of 18.7°F (-7.4°C) is observed in Granville, Vermont.Humidity
The average relative humidity in December in Granville is 86%.Rainfall
In Granville, in December, during 5 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. In Granville, during the entire year, the rain falls for 110.1 days and collects up to 15.55" (395mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Granville, during December, snow falls for 15.4 days and regularly aggregates up to 5.08" (129mm) of snow. In Granville, during the entire year, snow falls for 86.6 days and aggregates up to 36.97" (939mm) of snow.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 7:06 am and sunset at 4:14 pm. On the last day of December, sunrise is at 7:25 am and sunset at 4:23 pm EST.
Sunshine
The average sunshine in December in Granville 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 reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 1 during December leads to these advisories:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Granville, VT
- Average high temperature in December: 28.9°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in December: 18.7°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).
Average pressure in December
Granville, VT
- Average pressure in December: 30.05"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
Granville, VT
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Granville, VT
- Average humidity in December: 86%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and May (77%).
Average rainfall in December
Granville, VT
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is June (1.73").
The driest month (with the least rainfall) is September (0.83").
Average rainfall days in December
Granville, VT
- Average rainfall days in December: 5 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is February (3.4 days).
Average snowfall in December
Granville, VT
- Average snowfall in December: 5.08"
The month with the highest snowfall is February (7.05").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Granville, VT
- Average snowfall days in December: 15.4 days
The month with the highest number of snowfall days is January (16.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Granville, 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: 3h and 6min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).
Average sunshine days in December
Granville, VT
- Average sunshine days in December: 14.9 days
The month with the most sunshine days is September (18 days).
The month with the least sunshine days is February (11.7 days).
Average UV index in December
Granville, VT
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in December
Granville, VT
- Average cloud cover in December: 70
The month with the most cloud cover is February (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in December
Granville, VT
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February and March (4mi).
