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
A change in temperatures is noted as November gives way to December, with average highs reducing from a cold 38.7°F (3.7°C) to a freezing cold 27.5°F (-2.5°C). During December, the temperature is averaged to a low of 17.4°F (-8.1°C) at night.Humidity
In December, the average relative humidity is 88%.Rainfall
In Jay, in December, it is raining for 8.2 days, with typically 2.68" (68mm) of accumulated precipitation. In Jay, during the entire year, the rain falls for 156.3 days and collects up to 32.64" (829mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Jay, in December, during 20.1 snowfall days, 10.39" (264mm) of snow is typically accumulated. In Jay, during the entire year, snow falls for 103.3 days and aggregates up to 62.6" (1590mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:08 am and sunset at 4:09 pm. On the last day of December, sunrise is at 7:27 am and sunset at 4:18 pm EST.
Sunshine
In Jay, the average sunshine in December is 2.7h.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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 Jay?
What is the average length of the day in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index in Jay?
How high is the UV index in December?
Average temperature in December
Jay, VT
- Average high temperature in December: 27.5°F
The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is January (21.6°F).
- Average low temperature in December: 17.4°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 (8.6°F).
Average pressure in December
Jay, VT
- Average pressure in December: 30.04"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
Jay, VT
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Jay, VT
- Average humidity in December: 88%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (77%).
Average rainfall in December
Jay, VT
- Average rainfall in December: 2.68"
The wettest months (with the highest rainfall) are May and June (3.23").
The driest month (with the least rainfall) is February (2.13").
Average rainfall days in December
Jay, VT
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is June (19 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in December
Jay, VT
- Average snowfall in December: 10.39"
The month with the highest snowfall is February (13.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Jay, VT
- Average snowfall days in December: 20.1 days
The month with the highest number of snowfall days is February (21.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Jay, VT
- Average daylight in December: 8h and 5min
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 4min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and February (Average sunshine: 2h and 0min).
Average sunshine days in December
Jay, VT
- Average sunshine days in December: 7.5 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (6.2 days).
Average UV index in December
Jay, VT
- 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 and December (UV index 1).
Average cloud cover in December
Jay, VT
- Average cloud cover in December: 75
The month with the most cloud cover is February (Cloud cover 81).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in December
Jay, VT
- Average visibility in December: 4mi
The months with the highest visibility are April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March and December (4mi).
Jay, Vermont, USA
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