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 beginning of December involves a decrease in the average high-temperature, transitioning from a cold 41.4°F (5.2°C) in November to a freezing cold 30°F (-1.1°C). The average temperature during December nights is registered at 20.3°F (-6.5°C).Humidity
In December, the average relative humidity is 83%.Rainfall
In December, the rain falls for 10.6 days. Throughout December, 2.52" (64mm) of precipitation is accumulated. In Thetford Center, during the entire year, the rain falls for 158.3 days and collects up to 28.78" (731mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Thetford Center, during December, snow falls for 13.9 days and regularly aggregates up to 7.2" (183mm) of snow. Throughout the year, there are 77.6 snowfall days, and 45.12" (1146mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 7:03 am and sunset at 4:12 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:21 pm EST.
Sunshine
The average sunshine in December is 3.9h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.Note: A typical high UV index of 1 in December suggests the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. 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
How cold is December in Thetford Center?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index in Thetford Center?
How high is the UV index in December?
Average temperature in December
Thetford Center, VT
- Average high temperature in December: 30°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 (23.9°F).
- Average low temperature in December: 20.3°F
The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in December
Thetford Center, VT
- Average pressure in December: 30.04"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
Thetford Center, VT
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Thetford Center, VT
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in December
Thetford Center, VT
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is October (3.11").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in December
Thetford Center, VT
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (7.2 days).
Average snowfall in December
Thetford Center, VT
- Average snowfall in December: 7.2"
The month with the highest snowfall is February (12.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Thetford Center, VT
- Average snowfall days in December: 13.9 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Thetford Center, 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 5min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in December
Thetford Center, VT
- Average sunshine days in December: 12.5 days
The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in December
Thetford Center, 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
Thetford Center, VT
- Average cloud cover in December: 61
The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in December
Thetford Center, VT
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February, March and September (4mi).
Thetford Center, Vermont, USA
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