December weather forecast
Woodstock, CT

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Weather in December

The first month of the winter, December, is also a wintry month in Woodstock, Connecticut, with an average temperature varying between 28.8°F (-1.8°C) and 39.4°F (4.1°C).

Temperature

The arrival of December signals a shift in temperature, down from a frosty 49.1°F (9.5°C) in November to a cold 39.4°F (4.1°C). During December, Woodstock records a consistent average nighttime temperature of 28.8°F (-1.8°C).

Humidity

The average relative humidity in December is 78%.

Rainfall

The month with the most rainfall is December, when the rain falls for 11.5 days and typically aggregates up to 3.43" (87mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. In Woodstock, in December, during 5 snowfall days, 2.48" (63mm) of snow is typically accumulated. Throughout the year, there are 30.6 snowfall days, and 14.02" (356mm) of snow is accumulated.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:56 am and sunset at 4:17 pm. On the last day of December, sunrise is at 7:15 am and sunset at 4:26 pm EST.

Sunshine

In December, the average sunshine is 4.8h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: A maximum high daily UV index of 2 during December translates into the following directions:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Around midday, solar radiation is most harmful; hence, exposure should be limited. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold does it get in December?

The average high-temperature and low-temperature during December are 39.4°F (4.1°C) and 28.8°F (-1.8°C) respectively. In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is estimated at 86°F (30°C).

What is the average humidity in December?

In December, the average relative humidity in Woodstock is 78%.

What is the wettest month?

The month with the most rainfall is December, when the rain falls for 11.5 days and typically aggregates up to 3.43" (87mm) of precipitation.

How many days does it rain in December?

In December, the rain falls for 11.5 days. Throughout December, 3.43" (87mm) of precipitation is accumulated.

How much does it snow in December?

In December, it is snowing for 5 days. Throughout December, 2.48" (63mm) of snow is accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 12min of daylight.

How many hours of daylight does Woodstock have in December?

In Woodstock, the average day length in December is 9h and 11min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 6:56 am and sunset at 4:17 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:26 pm EST.

How many hours of sunshine does Woodstock have in December?

In December, the average sunshine duration is 4.8h.

When is the lowest UV index?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Woodstock, Connecticut.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.
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
Woodstock, CT

Average temperature in December - Woodstock, CT
  • Average high temperature in December: 39.4°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in December: 28.8°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in December
Woodstock, CT

Average pressure in December - Woodstock, CT
  • Average pressure in December: 30.04"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Woodstock, CT

Average wind speed in December - Woodstock, CT
  • Average wind speed in December: 8.8mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

Average humidity in December
Woodstock, CT

Average humidity in December - Woodstock, CT
  • Average humidity in December: 78%

The months with the highest relative humidity are February, June, July, September and October (79%).
The month with the lowest relative humidity is April (73%).

Average rainfall in December
Woodstock, CT

Average rainfall in December - Woodstock, CT
  • Average rainfall in December: 3.43"

The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.81").

Average rainfall days in December
Woodstock, CT

Average rainfall days in December - Woodstock, CT
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in December
Woodstock, CT

Average snowfall in December - Woodstock, CT
  • Average snowfall in December: 2.48"

The month with the highest snowfall is March (3.7").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Woodstock, CT

Average snowfall days in December - Woodstock, CT
  • Average snowfall days in December: 5 days

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Woodstock, CT

Average daylight in December / Average sunshine in December - Woodstock, CT
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 4h and 5min

The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in December
Woodstock, CT

Average sunshine days in December - Woodstock, CT
  • Average sunshine days in December: 15.8 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (10.6 days).

Average UV index in December
Woodstock, CT

Average UV index in December - Woodstock, CT
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in December
Woodstock, CT

Average cloud cover in December - Woodstock, CT
  • Average cloud cover in December: 48

The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in December
Woodstock, CT

Average visibility in December - Woodstock, CT
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).

Woodstock, Connecticut, USA

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