December weather forecast
Dyer, TN

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Weather in December

The first month of the winter, December, is still a chilly month in Dyer, Tennessee, with an average temperature varying between 48°F (8.9°C) and 36°F (2.2°C).

Temperature

The shift from November to December involves a decrease in the average high-temperature, from a moderate 57.4°F (14.1°C) to a chilly 48°F (8.9°C). Dyer, during the month of December, experiences an average low-temperature of 36°F (2.2°C).

Humidity

In Dyer, the average relative humidity in December is 78%.

Rainfall

In Dyer, during December, the rain falls for 12.4 days and regularly aggregates up to 3.39" (86mm) of precipitation. In Dyer, during the entire year, the rain falls for 161.7 days and collects up to 38.46" (977mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In Dyer, in December, during 0.8 snowfall days, 0.59" (15mm) of snow is typically accumulated. Throughout the year, there are 7.6 snowfall days, and 4.69" (119mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 48min of daylight.
On the first day of December, sunrise is at 6:48 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 4:52 pm CST.

Sunshine

In December, the average sunshine is 4.8h.

UV index

The months with the lowest UV index are February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 2 in December transforms into the following instructions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Updated: Jun 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Dyer in December?

The average high-temperature and low-temperature in Dyer during December are 48°F (8.9°C) and 36°F (2.2°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is calculated to be 87.8°F (31°C).

What is the average humidity in December?

In December, the average relative humidity is 78%.

How many days does it rain in December?

In Dyer, during December, the rain falls for 12.4 days and regularly aggregates up to 3.39" (86mm) of precipitation.

How much does it snow in December?

In Dyer, in December, snow falls for 0.8 days, with typically accumulated 0.59" (15mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 48min of daylight.

What is the average length of the day in December?

In Dyer, the average day length in December is 9h and 46min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:48 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 4:52 pm CST.

How many hours of sunshine does Dyer have in December?

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

What is the month with the lowest UV index?

The months with the lowest UV index are February and December, with an average maximum UV index of 2.

What is the UV index intensity in December?

In Dyer, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat 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
Dyer, TN

Average temperature in December - Dyer, TN
  • Average high temperature in December: 48°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (44.1°F).

  • Average low temperature in December: 36°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

Average pressure in December
Dyer, TN

Average pressure in December - Dyer, TN
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Dyer, TN

Average wind speed in December - Dyer, TN
  • Average wind speed in December: 8.6mph

The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).

Average humidity in December
Dyer, TN

Average humidity in December - Dyer, TN
  • Average humidity in December: 78%

The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in December
Dyer, TN

Average rainfall in December - Dyer, TN
  • Average rainfall in December: 3.39"

The wettest month (with the highest rainfall) is April (4.33").
The driest month (with the least rainfall) is September (1.65").

Average rainfall days in December
Dyer, TN

Average rainfall days in December - Dyer, TN
  • Average rainfall days in December: 12.4 days

The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is October (10 days).

Average snowfall in December
Dyer, TN

Average snowfall in December - Dyer, TN
  • Average snowfall in December: 0.59"

The month with the highest snowfall is March (1.46").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Dyer, TN

Average snowfall days in December - Dyer, TN
  • Average snowfall days in December: 0.8 days

The months with the highest number of snowfall days are January and February (2.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Dyer, TN

Average daylight in December / Average sunshine in December - Dyer, TN
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in December
Dyer, TN

Average sunshine days in December - Dyer, TN
  • Average sunshine days in December: 17 days

The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is June (12.3 days).

Average UV index in December
Dyer, TN

Average UV index in December - Dyer, TN
  • Average UV index in December: 2

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are February and December (UV index 2).

Average cloud cover in December
Dyer, TN

Average cloud cover in December - Dyer, TN
  • Average cloud cover in December: 47

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 25).

Average visibility in December
Dyer, TN

Average visibility in December - Dyer, TN
  • 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).

Dyer, Tennessee, USA

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