December weather forecast
Middle Haddam, CT

Weather in December

December, the first month of the winter, in Middle Haddam, is also a wintry month, with average temperature ranging between max 40.6°F (4.8°C) and min 30°F (-1.1°C).

Temperature

In Middle Haddam, Connecticut, the average high-temperature decreases, from a cool 50°F (10°C) in November, to a wintry 40.6°F (4.8°C). In Middle Haddam, in December, the average low-temperature is 30°F (-1.1°C).

Humidity

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

Rainfall

In Middle Haddam, it is raining for 8.6 days, with typically 1.14" (29mm) of accumulated precipitation. In Middle Haddam, during the entire year, the rain falls for 109.9 days and collects up to 11.14" (283mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In December, in Middle Haddam, it is snowing for 3.7 days. Throughout December, 0.55" (14mm) of snow is accumulated. Throughout the year, there are 19.9 snowfall days, and 3.7" (94mm) of snow is accumulated.

Daylight

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

Sunshine

In December, the average sunshine in Middle Haddam is 4.6h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Middle Haddam. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to the UV radiation for average individuals.
Note: The average daily UV index of 2 in December transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. 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 average humidity in December in Middle Haddam?

The average relative humidity in December is 76%.

How many days does it rain in December in Middle Haddam?

In December, in Middle Haddam, the rain falls for 8.6 days. Throughout December, 1.14" (29mm) of precipitation is accumulated.

How many days does it snow in December in Middle Haddam?

In December, in Middle Haddam, Connecticut, it is snowing for 3.7 days. Throughout December, 0.55" (14mm) of snow is accumulated.

What is the month with the shortest days in Middle Haddam?

With an average of 9.2h of daylight, December has the shortest days of the year.

What is the average length of the day in December in Middle Haddam?

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

How long on average sun shines in December in Middle Haddam?

In Middle Haddam, the average sunshine in December is 4.6h.

What is the month with the lowest UV index in Middle Haddam?

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

What is the UV index intensity in December in Middle Haddam?

The average daily maximum UV index in December in Middle Haddam, Connecticut, is 2. A UV Index of 2, and less, symbolizes a low health threat from unsafe exposure to the Sun's UV rays.

Average temperature in December
Middle Haddam, CT

Average temperature in December - Middle Haddam, CT
  • Average high temperature in December: 40.6°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.7°F).

  • Average low temperature in December: 30°F

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).

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Average pressure in December
Middle Haddam, CT

Average pressure in December - Middle Haddam, 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
Middle Haddam, CT

Average wind speed in December - Middle Haddam, CT
  • Average wind speed in December: 8.4mph

The windiest months (with the highest average wind speed) are January and March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in December
Middle Haddam, CT

Average humidity in December - Middle Haddam, 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
Middle Haddam, CT

Average rainfall in December - Middle Haddam, CT
  • Average rainfall in December: 1.14"

The wettest month (with the highest rainfall) is July (1.18").
The driest month (with the least rainfall) is September (0.39").

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Average rainfall days in December
Middle Haddam, CT

Average rainfall days in December - Middle Haddam, CT
  • Average rainfall days in December: 8.6 days

The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is January (5.9 days).

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Average snowfall in December
Middle Haddam, CT

Average snowfall in December - Middle Haddam, CT
  • Average snowfall in December: 0.55"

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

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Average snowfall days in December
Middle Haddam, CT

Average snowfall days in December - Middle Haddam, CT
  • Average snowfall days in December: 3.7 days

The month with the highest number of snowfall days is February (5.2 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
Middle Haddam, CT

Average daylight in December / Average sunshine in December - Middle Haddam, 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

Months with the most sunshine are July and August (Average sunshine: 10.1h).
The month with the least sunshine is February (Average sunshine: 4.5h).

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Average sunshine days in December
Middle Haddam, CT

Average sunshine days in December - Middle Haddam, CT
  • Average sunshine days in December: 19.2 days

The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is July (16.3 days).

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Average UV index in December
Middle Haddam, CT

Average UV index in December - Middle Haddam, CT
  • Average UV index in December: 2

Months with the highest UV index are June, July and August (UV index 6).
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
Middle Haddam, CT

Average cloud cover in December - Middle Haddam, CT
  • Average cloud cover in December: 50

Months with the most cloud cover are February and March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in December
Middle Haddam, CT

Average visibility in December - Middle Haddam, 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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