December weather forecast
Hamden, CT

Weather in December

December, the first month of the winter in Hamden, is still a cold month, with temperature in the range of an average high of 40.3°F (4.6°C) and an average low of 30.4°F (-0.9°C).

Temperature

In Hamden, the average high-temperature in December drops from a chilly 49.5°F (9.7°C) in November to a wintry 40.3°F (4.6°C). The average low-temperature, in December, is 30.4°F (-0.9°C).

Humidity

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

Rainfall

In Hamden, Connecticut, during December, the rain falls for 9.4 days and regularly aggregates up to 1.46" (37mm) of precipitation. In Hamden, during the entire year, the rain falls for 134.2 days and collects up to 15.12" (384mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. In December, in Hamden, it is snowing for 3.3 days. Throughout December, 0.83" (21mm) of snow is accumulated. Throughout the year, in Hamden, there are 20.5 snowfall days, and 4.02" (102mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Hamden, with an average of 9h and 15min of daylight.
On the first day of December in Hamden, sunrise is at 6:58 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:31 pm EST.

Sunshine

In December, the average sunshine in Hamden 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 in Hamden. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 2 in December transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 Hamden?

In Hamden, Connecticut, in December, the average high-temperature is 40.3°F (4.6°C), and the average low-temperature is 30.4°F (-0.9°C). The average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, in July is computed to be 87.8°F (31°C).

What is the average humidity in December in Hamden?

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

How much does it rain in Hamden in December?

In Hamden, Connecticut, in December, during 9.4 rainfall days, 1.46" (37mm) of precipitation is typically accumulated.

How many days does it snow in December in Hamden?

In Hamden, Connecticut, in December, snow falls for 3.3 days, with typically accumulated 0.83" (21mm) of snow.

What is the month with the shortest days in Hamden?

With an average of 9h and 15min of daylight, December has the shortest days of the year.

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

In December, the average day length in Hamden, Connecticut, is 9h and 15min.

What time are sunrise and sunset in December in Hamden?

On the first day of December in Hamden, Connecticut, sunrise is at 6:58 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:31 pm EST.

How many hours of sunshine does Hamden have in December?

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

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

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

What is the UV index intensity in December in Hamden?

In Hamden, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes 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
Hamden, CT

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

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (34.5°F).

  • Average low temperature in December: 30.4°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

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Average pressure in December
Hamden, CT

Average pressure in December - Hamden, 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).

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Average wind speed in December
Hamden, CT

Average wind speed in December - Hamden, CT
  • Average wind speed in December: 8.9mph

The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in December
Hamden, CT

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

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

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Average rainfall in December
Hamden, CT

Average rainfall in December - Hamden, CT
  • Average rainfall in December: 1.46"

The wettest month (with the highest rainfall) is July (1.69").
The driest month (with the least rainfall) is February (0.79").

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Average rainfall days in December
Hamden, CT

Average rainfall days in December - Hamden, CT
  • Average rainfall days in December: 9.4 days

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is January (7.2 days).

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Average snowfall in December
Hamden, CT

Average snowfall in December - Hamden, CT
  • Average snowfall in December: 0.83"

The month with the highest snowfall is February (1.14").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Hamden, CT

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

The month with the highest number of snowfall days is February (6.7 days).
The 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
Hamden, CT

Average daylight in December / Average sunshine in December - Hamden, CT
  • Average daylight in December: 9h and 15min

The month with the longest days is June (Average daylight: 15h and 7min).
The month with the shortest days is December (Average daylight: 9h and 15min).

  • Average sunshine in December: 4h and 48min

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).

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Average sunshine days in December
Hamden, CT

Average sunshine days in December - Hamden, CT
  • Average sunshine days in December: 18.4 days

The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is June (13.2 days).

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Average UV index in December
Hamden, CT

Average UV index in December - Hamden, 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).

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Average cloud cover in December
Hamden, CT

Average cloud cover in December - Hamden, 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).

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Average visibility in December
Hamden, CT

Average visibility in December - Hamden, 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).

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