December weather forecast
Stevenson, CT

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Weather in December

December, the first month of the winter in Stevenson, is still a cold month, with an average temperature ranging between min 29.7°F (-1.3°C) and max 39.9°F (4.4°C).

Temperature

December's onset corresponds with a shift in the average high-temperature, moving from a chilly 49.1°F (9.5°C) in November to a cold 39.9°F (4.4°C). Stevenson records an average temperature drop to a subzero cold 29.7°F (-1.3°C) in December.

Humidity

In Stevenson, Connecticut, the average relative humidity in December is 77%.

Rainfall

In Stevenson, in December, during 8.4 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. In Stevenson, during the entire year, the rain falls for 118.8 days and collects up to 9.61" (244mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. December is the month with the most snowfall. Snow falls for 3.3 days and accumulates 0.55" (14mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 12min of daylight.
On the first day of December, sunrise is at 6:59 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:33 pm EST.

Sunshine

In Stevenson, the average sunshine in December is 4.8h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold during December?

In December, the average high-temperature and low-temperature are 39.9°F (4.4°C) and 29.7°F (-1.3°C) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in July is evaluated at 87.8°F (31°C).

What is the average humidity in December?

In December, the average relative humidity is 77%.

How much does it rain in December?

In Stevenson, during December, the rain falls for 8.4 days and regularly aggregates up to 1.1" (28mm) of precipitation.

What is the snowiest month?

December is the month with the most snowfall. Snow falls for 3.3 days and accumulates 0.55" (14mm) of snow.

How much does it snow in December?

In Stevenson, in December, snow falls for 3.3 days, with typically accumulated 0.55" (14mm) of snow.

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.

What is the average length of the day in December?

The average day length in December is 9h and 15min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 6:59 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:33 pm EST.

How many hours of sunshine does Stevenson have in December?

In Stevenson, the average sunshine duration in December is 4.8h.

What are the months with the lowest UV index?

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

What is the UV index intensity in December?

In Stevenson, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe 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
Stevenson, CT

Average temperature in December - Stevenson, CT
  • Average high temperature in December: 39.9°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.8°F).

  • Average low temperature in December: 29.7°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

Average pressure in December
Stevenson, CT

Average pressure in December - Stevenson, CT
  • Average pressure in December: 30.06"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Stevenson, CT

Average wind speed in December - Stevenson, CT
  • Average wind speed in December: 8.6mph

The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in December
Stevenson, CT

Average humidity in December - Stevenson, CT
  • Average humidity in December: 77%

The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (72%).

Average rainfall in December
Stevenson, CT

Average rainfall in December - Stevenson, CT
  • Average rainfall in December: 1.1"

The wettest month (with the highest rainfall) is July (1.22").
The driest months (with the least rainfall) are January and February (0.47").

Average rainfall days in December
Stevenson, CT

Average rainfall days in December - Stevenson, CT
  • Average rainfall days in December: 8.4 days

The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is January (5.3 days).

Average snowfall in December
Stevenson, CT

Average snowfall in December - Stevenson, CT
  • Average snowfall in December: 0.55"

The month with the highest snowfall is December (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Stevenson, CT

Average snowfall days in December - Stevenson, CT
  • Average snowfall days in December: 3.3 days

The month with the highest number of snowfall days is February (5.8 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
Stevenson, CT

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

The month with the longest days is June (Average daylight: 15h and 6min).
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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in December
Stevenson, CT

Average sunshine days in December - Stevenson, CT
  • Average sunshine days in December: 18.7 days

The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is July (13.9 days).

Average UV index in December
Stevenson, CT

Average UV index in December - Stevenson, 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
Stevenson, CT

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

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in December
Stevenson, CT

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

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

Stevenson, Connecticut, USA

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