December weather forecast
Underhill, VT

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Weather in December

December, the first month of the winter in Underhill, is also a subzero cold month, with an average temperature varying between 20.1°F (-6.6°C) and 30.2°F (-1°C).

Temperature

As November transitions into December, Underhill sees a drop in the average high-temperature, transitioning from a wintry 41.5°F (5.3°C) to a freezing cold 30.2°F (-1°C). Underhill's nighttime temperature during December is consistently averaged at a still subzero cold 20.1°F (-6.6°C).

Humidity

The average relative humidity in December is 84%.

Rainfall

In Underhill, in December, during 10.7 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. Throughout the year, in Underhill, there are 161.7 rainfall days, and 29.33" (745mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Underhill, in December, during 18.1 snowfall days, 7.83" (199mm) of snow is typically accumulated. In Underhill, during the entire year, snow falls for 94.7 days and aggregates up to 50.91" (1293mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 54min of daylight.
On the first day of the month, sunrise is at 7:08 am and sunset at 4:13 pm. On the last day of December, sunrise is at 7:28 am and sunset at 4:21 pm EST.

Sunshine

In Underhill, the average sunshine in December is 3.2h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 1 during December translates into the following directions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

In December, the average high-temperature and low-temperature are 30.2°F (-1°C) and 20.1°F (-6.6°C) respectively.

What is the average humidity in December in Underhill?

In December, the average relative humidity is 84%.

How much does it rain in December?

In Underhill, in December, during 10.7 rainfall days, 2.28" (58mm) of precipitation is typically accumulated.

How many days does it snow in December?

In Underhill, in December, during 18.1 snowfall days, 7.83" (199mm) of snow is typically accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 8h and 54min of daylight.

How many hours of daylight does Underhill have in December?

In Underhill, the average day length in December is 8h and 54min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:08 am and sunset at 4:13 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:21 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration is 3.2h.

What is the month with the lowest UV index?

January and December, with an average maximum UV index of 1, are months with the lowest UV index.

How high is the UV index in December?

The average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Underhill, VT

Average temperature in December - Underhill, VT
  • Average high temperature in December: 30.2°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (24.3°F).

  • Average low temperature in December: 20.1°F

The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (12°F).

Average pressure in December
Underhill, VT

Average pressure in December - Underhill, 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
Underhill, VT

Average wind speed in December - Underhill, VT
  • Average wind speed in December: 6.8mph

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
Underhill, VT

Average humidity in December - Underhill, VT
  • Average humidity in December: 84%

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
Underhill, VT

Average rainfall in December - Underhill, VT
  • Average rainfall in December: 2.28"

The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is September (1.77").

Average rainfall days in December
Underhill, VT

Average rainfall days in December - Underhill, VT
  • Average rainfall days in December: 10.7 days

The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is February (6.2 days).

Average snowfall in December
Underhill, VT

Average snowfall in December - Underhill, VT
  • Average snowfall in December: 7.83"

The month with the highest snowfall is February (11.73").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Underhill, VT

Average snowfall days in December - Underhill, VT
  • Average snowfall days in December: 18.1 days

The month with the highest number of snowfall days is January (20.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Underhill, VT

Average daylight in December / Average sunshine in December - Underhill, VT
  • Average daylight in December: 8h and 5min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in December: 3h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 48min).

Average sunshine days in December
Underhill, VT

Average sunshine days in December - Underhill, VT
  • Average sunshine days in December: 8.3 days

The month with the most sunshine days is September (15.9 days).
The month with the least sunshine days is February (6.8 days).

Average UV index in December
Underhill, VT

Average UV index in December - Underhill, VT
  • Average UV index in December: 1

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 December (UV index 1).

Average cloud cover in December
Underhill, VT

Average cloud cover in December - Underhill, VT
  • Average cloud cover in December: 68

The month with the most cloud cover is February (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 35).

Average visibility in December
Underhill, VT

Average visibility in December - Underhill, 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).

Underhill, Vermont, USA

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