December weather forecast and climate
Wethersfield, CT

Weather in December

December, the first month of the winter, in Wethersfield, is also a wintry month, with average temperature varying between 39°F (3.9°C) and 28.4°F (-2°C).

Temperature

In Wethersfield, the average high-temperature in December drops, from a frosty 48.9°F (9.4°C) in November, to a cold 39°F (3.9°C). The average low-temperature, in December, is 28.4°F (-2°C).

Humidity

The average relative humidity in Wethersfield is 77%.

Rainfall

December is the month with the most rainfall. Rain falls for 11.3 days and accumulates 3.19" (81mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In Wethersfield, Connecticut, in December, snow falls for 5.3 days, with typically accumulated 2.83" (72mm) of snow. In Wethersfield, during the entire year, snow falls for 29.1 days, and aggregates up to 15.63" (397mm) of snow.

Daylight

December has the shortest days of the year in Wethersfield, with an average of 9.2h of daylight.

Sunshine

In December, the average sunshine is 4.8h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 1 interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Wethersfield?

In December, in Wethersfield, the average high-temperature is 39°F (3.9°C), and the average low-temperature is 28.4°F (-2°C).

What is the average humidity in December in Wethersfield?

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

How many days does it rain in December in Wethersfield?

In Wethersfield, in December, during 11.3 rainfall days, 3.19" (81mm) of precipitation is typically accumulated.

What is the rainiest month in Wethersfield?

December is the month with the most rainfall. Rain falls for 11.3 days and accumulates 3.19" (81mm) of precipitation.

How many days does it snow in December in Wethersfield?

In Wethersfield, during December, snow falls for 5.3 days and regularly aggregates up to 2.83" (72mm) of snow.

What is the month with the shortest days in Wethersfield?

December has the shortest days of the year in Wethersfield, Connecticut, with an average of 9.2h of daylight.

What is the average length of the day in December in Wethersfield?

The average length of the day in December in Wethersfield, Connecticut, is 9.2h.

How many hours of sunshine does Wethersfield have in December?

In Wethersfield, Connecticut, the average sunshine in December is 4.8h.

When is the lowest UV index in Wethersfield?

The month with the lowest UV index is December, with an average maximum UV index of 1.

How high is the UV index in December in Wethersfield?

In Wethersfield, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in December
Wethersfield, CT

Average temperature in December - Wethersfield, CT
  • Average high temperature in December: 39°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in December: 28.4°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

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Average pressure in December
Wethersfield, CT

Average pressure in December - Wethersfield, CT
  • Average pressure in December: 30.05"

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

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Average wind speed in December
Wethersfield, CT

Average wind speed in December - Wethersfield, CT
  • Average wind speed in December: 7.8mph

The windiest months (with the highest average wind speed) are January and March (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

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Average humidity in December
Wethersfield, CT

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

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (70%).

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Average rainfall in December
Wethersfield, CT

Average rainfall in December - Wethersfield, CT
  • Average rainfall in December: 3.19"

The wettest month (with the highest rainfall) is December (3.19").
The driest month (with the least rainfall) is September (1.93").

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Average rainfall days in December
Wethersfield, CT

Average rainfall days in December - Wethersfield, CT
  • Average rainfall days in December: 11.3 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is January (9.2 days).

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Average snowfall in December
Wethersfield, CT

Average snowfall in December - Wethersfield, CT
  • Average snowfall in December: 2.83"

The month with the highest snowfall is February (4.45").
Months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Wethersfield, CT

Average snowfall days in December - Wethersfield, CT
  • Average snowfall days in December: 5.3 days

The month with the highest number of snowfall days is February (8.1 days).
Months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Wethersfield, CT
  • Average daylight in December: 9.2h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in December: 4.8h

Months with the most sunshine are July and August (Average sunshine: 10.4h).
The month with the least sunshine is February (Average sunshine: 4.6h).

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Average sunshine days in December
Wethersfield, CT

Average sunshine days in December - Wethersfield, CT
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is January (17.6 days).
The month with the least sunshine days is June (10.7 days).

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Average UV index in December
Wethersfield, CT

Average UV index in December - Wethersfield, CT
  • Average UV index in December: 1

Months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
Wethersfield, CT

Average cloud cover in December - Wethersfield, 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 33).

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Average visibility in December
Wethersfield, CT

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

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

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