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 onset of December entails a temperature shift, as the average high-temperature decreases from a cold 41.7°F (5.4°C) in November to a freezing cold 30.9°F (-0.6°C). The average temperature drops to 20.3°F (-6.5°C) during the night in the month of December.Humidity
In Windsor, the average relative humidity in December is 83%.Rainfall
In Windsor, during December, the rain falls for 8.3 days and regularly aggregates up to 2.09" (53mm) of precipitation. Throughout the year, there are 138.6 rainfall days, and 24.88" (632mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 13.9 days. Throughout December, 8.07" (205mm) of snow is accumulated. In Windsor, during the entire year, snow falls for 82.6 days and aggregates up to 55.24" (1403mm) of snow.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:03 am and sunset at 4:14 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:23 pm EST.
Sunshine
The average sunshine in December is 4.2h.UV index
In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: An average maximum UV index of 2 in December leads to these recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days in Windsor?
How many hours of daylight does Windsor have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Windsor have in December?
What is the UV index reading in December?
Average temperature in December
Windsor, VT
- Average high temperature in December: 30.9°F
The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in December: 20.3°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in December
Windsor, 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
Windsor, VT
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Windsor, VT
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in December
Windsor, VT
- Average rainfall in December: 2.09"
The wettest month (with the highest rainfall) is October (2.68").
The driest month (with the least rainfall) is January (1.57").
Average rainfall days in December
Windsor, VT
- Average rainfall days in December: 8.3 days
The month with the highest number of rainy days is June (17 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in December
Windsor, VT
- Average snowfall in December: 8.07"
The month with the highest snowfall is February (11.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Windsor, VT
- Average snowfall days in December: 13.9 days
The month with the highest number of snowfall days is March (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
Windsor, 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 1min
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 48min).
Average sunshine days in December
Windsor, VT
- Average sunshine days in December: 14 days
The month with the most sunshine days is September (16.1 days).
The months with the least sunshine days are March and June (10.8 days).
Average UV index in December
Windsor, VT
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in December
Windsor, VT
- Average cloud cover in December: 56
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in December
Windsor, 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).
Windsor, Vermont, USA
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