December weather forecast and climate
Hebron, CT

Weather in December

The first month of the winter, December, is also a wintry month in Hebron, Connecticut, with average temperature fluctuating between 29.7°F (-1.3°C) and 40.3°F (4.6°C).

Temperature

In Hebron, Connecticut, the average high-temperature drops, from a frosty 49.6°F (9.8°C) in November, to a cold 40.3°F (4.6°C). In December, in Hebron, the average low-temperature is 29.7°F (-1.3°C).

Humidity

In December, the average relative humidity in Hebron is 76%.

Rainfall

December is the month with the most rainfall. Rain falls for 6.8 days and accumulates 1.02" (26mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In Hebron, during 4.1 snowfall days, 0.75" (19mm) of snow is typically accumulated. In Hebron, Connecticut, during the entire year, snow falls for 22.3 days, and aggregates up to 3.82" (97mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9.2h of daylight.

Sunshine

February and December, with an average of 4.6h of sunshine, are months with the least sunshine in Hebron.

UV index

December is the month with the lowest UV index in Hebron, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 1 interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. 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 Hebron?

In Hebron, Connecticut, in December, the average high-temperature is 40.3°F (4.6°C), and the average low-temperature is 29.7°F (-1.3°C).

What is the average humidity in December in Hebron?

The average relative humidity in December in Hebron is 76%.

How many days does it rain in December in Hebron?

In Hebron, in December, during 6.8 rainfall days, 1.02" (26mm) of precipitation is typically accumulated.

What is the wettest month in Hebron?

December is the month with the most rainfall in Hebron, Connecticut. Rain falls for 6.8 days and accumulates 1.02" (26mm) of precipitation.

How much does it snow in Hebron in December?

In Hebron, Connecticut, in December, during 4.1 snowfall days, 0.75" (19mm) of snow is typically accumulated.

What is the month with the shortest days in Hebron?

The month with the shortest days in Hebron, Connecticut, is December, with an average of 9.2h of daylight.

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

In Hebron, the average length of the day in December is 9.2h.

What is the month with the least sunshine in Hebron?

Months with the least sunshine in Hebron, Connecticut, are February and December, with an average of 4.6h of sunshine.

How long on average sun shines in December in Hebron?

In December, the average sunshine is 4.6h.

What is the month with the lowest UV index in Hebron?

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

How high is the UV index in December in Hebron?

In Hebron, Connecticut, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in December
Hebron, CT

Average temperature in December - Hebron, CT
  • Average high temperature in December: 40.3°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (34.3°F).

  • Average low temperature in December: 29.7°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).

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Average pressure in December
Hebron, CT

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

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

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Average wind speed in December
Hebron, CT

Average wind speed in December - Hebron, CT
  • Average wind speed in December: 8.3mph

The windiest months (with the highest average wind speed) are January and March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in December
Hebron, CT

Average humidity in December - Hebron, CT
  • Average humidity in December: 76%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in December
Hebron, CT

Average rainfall in December - Hebron, CT
  • Average rainfall in December: 1.02"

The wettest month (with the highest rainfall) is December (1.02").
The driest month (with the least rainfall) is September (0.35").

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Average rainfall days in December
Hebron, CT

Average rainfall days in December - Hebron, CT
  • Average rainfall days in December: 6.8 days

The month with the highest number of rainy days is July (11.8 days).
The month with the least rainy days is January (5.1 days).

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Average snowfall in December
Hebron, CT

Average snowfall in December - Hebron, CT
  • Average snowfall in December: 0.75"

The month with the highest snowfall is March (1.26").
Months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Hebron, CT

Average snowfall days in December - Hebron, CT
  • Average snowfall days in December: 4.1 days

The month with the highest number of snowfall days is February (6.4 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Hebron, 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: 4.6h

The month with the most sunshine is August (Average sunshine: 10.3h).
Months with the least sunshine are February and December (Average sunshine: 4.6).

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Average sunshine days in December
Hebron, CT

Average sunshine days in December - Hebron, CT
  • Average sunshine days in December: 20.2 days

The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is July (17.1 days).

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Average UV index in December
Hebron, CT

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

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

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Average cloud cover in December
Hebron, CT

Average cloud cover in December - Hebron, CT
  • Average cloud cover in December: 49

Months with the most cloud cover are February and March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in December
Hebron, CT

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

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

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