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
December shows a mild decline in the average high-temperature, falling from November's wintry 42.1°F (5.6°C) to a freezing cold 30.6°F (-0.8°C). During the month of December, the temperature generally drops to a low average of 20.8°F (-6.2°C).Humidity
In White River Junction, the average relative humidity in December is 83%.Rainfall
In December, in White River Junction, the rain falls for 11.3 days. Throughout December, 2.52" (64mm) of precipitation is accumulated. In White River Junction, Vermont, during the entire year, the rain falls for 161.9 days and collects up to 28.46" (723mm) of precipitation.Snowfall
Months with snowfall in White River Junction are January through May, October through December. In December, in White River Junction, Vermont, it is snowing for 12 days. Throughout December, 6.46" (164mm) of snow is accumulated. In White River Junction, Vermont, during the entire year, snow falls for 68.9 days and aggregates up to 35.91" (912mm) of snow.Daylight
The month with the shortest days in White River Junction, Vermont, is December, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 7:03 am and sunset at 4:13 pm. On the last day of December, sunrise is at 7:22 am and sunset at 4:22 pm EST.
Sunshine
In December, the average sunshine is 4h.UV index
December is the month with the lowest UV index in White River Junction, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, a regular UV index of 1 translates into these guidelines:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
How cold is December in White River Junction?
What is the average humidity in December in White River Junction?
How much does it rain in White River Junction in December?
How much does it snow in White River Junction in December?
What is the month with the shortest days in White River Junction?
How many hours of daylight does White River Junction have in December?
When are sunrise and sunset in December in White River Junction?
How long on average sun shines in December in White River Junction?
When is the lowest UV index in White River Junction?
What is the UV index reading in December in White River Junction?
Average temperature in December
White River Junction, VT
- Average high temperature in December: 30.6°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in December: 20.8°F
The month with the highest average low temperature is July (56.7°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).
Average pressure in December
White River Junction, 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
White River Junction, VT
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
White River Junction, VT
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is May (75%).
Average rainfall in December
White River Junction, VT
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is October (2.99").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
White River Junction, VT
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in December
White River Junction, VT
- Average snowfall in December: 6.46"
The month with the highest snowfall is February (10.47").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
White River Junction, VT
- Average snowfall days in December: 12 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
White River Junction, 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 month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in December
White River Junction, VT
- Average sunshine days in December: 12.9 days
The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is March (9.8 days).
Average UV index in December
White River Junction, 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
White River Junction, VT
- Average cloud cover in December: 59
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in December
White River Junction, 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).
White River Junction, Vermont, USA
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