December weather forecast
Essex, CT

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Weather in December

The first month of the winter, December, is also an icy month in Essex, Connecticut, with temperature in the range of an average low of 32.4°F (0.2°C) and an average high of 41.9°F (5.5°C).

Temperature

December's onset introduces a mild reduction in the average high-temperature, from a fresh 50.7°F (10.4°C) in November to a cold 41.9°F (5.5°C). The average temperature in Essex, Connecticut, drops to a still wintry 32.4°F (0.2°C) during the night in the month of December.

Humidity

The average relative humidity in December is 75%.

Rainfall

December is the month with the most rainfall in Essex, Connecticut. Rain falls for 13 days and accumulates 3.66" (93mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall in Essex. In Essex, in December, during 4.4 snowfall days, 1.34" (34mm) of snow is typically accumulated. In Essex, Connecticut, during the entire year, snow falls for 24.2 days and aggregates up to 9.53" (242mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 12min of daylight.
On the first day of December, sunrise is at 6:56 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 4:30 pm EST.

Sunshine

February and December, with an average of 4.8h of sunshine, are months with the least sunshine in Essex, Connecticut.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Essex. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Essex?

The high-temperature, in December, in Essex, is 41.9°F (5.5°C), while the low-temperature averages to 32.4°F (0.2°C).

What is the average humidity in December in Essex?

In Essex, the average relative humidity in December is 75%.

What is the rainiest month in Essex?

The month with the most rainfall in Essex, Connecticut, is December, when the rain falls for 13 days and typically aggregates up to 3.66" (93mm) of precipitation.

How many days does it rain in December in Essex?

In Essex, in December, during 13 rainfall days, 3.66" (93mm) of precipitation is typically accumulated.

How many days does it snow in December in Essex?

In Essex, during December, snow falls for 4.4 days and regularly aggregates up to 1.34" (34mm) of snow.

What is the month with the shortest days in Essex?

The month with the shortest days in Essex is December, with an average of 9h and 12min of daylight.

How many hours of daylight does Essex have in December?

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

What time are sunrise and sunset in December in Essex?

In December, on the first day of the month, sunrise is at 6:56 am and sunset at 4:21 pm. On the last day of the month, in Essex, Connecticut, sunrise is at 7:15 am and sunset at 4:30 pm EST.

What is the month with the least sunshine in Essex?

February and December, with an average of 4.8h of sunshine, are months with the least sunshine in Essex.

How long on average sun shines in December in Essex?

The average sunshine duration in December in Essex, Connecticut, is 4.8h.

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

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 reading in December in Essex?

In Essex, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Essex, CT

Average temperature in December - Essex, CT
  • Average high temperature in December: 41.9°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in December: 32.4°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).

Average pressure in December
Essex, CT

Average pressure in December - Essex, CT
  • Average pressure in December: 30.05"Hg

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

Average wind speed in December
Essex, CT

Average wind speed in December - Essex, CT
  • Average wind speed in December: 10.6mph

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

Average humidity in December
Essex, CT

Average humidity in December - Essex, CT
  • Average humidity in December: 75%

The months with the highest relative humidity are May, June and July (78%).
The month with the lowest relative humidity is April (73%).

Average rainfall in December
Essex, CT

Average rainfall in December - Essex, CT
  • Average rainfall in December: 3.66"

The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.93").

Average rainfall days in December
Essex, CT

Average rainfall days in December - Essex, CT
  • Average rainfall days in December: 13 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (9 days).

Average snowfall in December
Essex, CT

Average snowfall in December - Essex, CT
  • Average snowfall in December: 1.34"

The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Essex, CT

Average snowfall days in December - Essex, CT
  • Average snowfall days in December: 4.4 days

The month with the highest number of snowfall days is February (7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Essex, 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 month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

Average sunshine days in December
Essex, CT

Average sunshine days in December - Essex, CT
  • Average sunshine days in December: 14.8 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is July (11.7 days).

Average UV index in December
Essex, CT

Average UV index in December - Essex, 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
Essex, CT

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

The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in December
Essex, CT

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

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

Essex, Connecticut, USA

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