December weather forecast
Plainfield, TN

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Weather in December

The first month of the winter, December, is still a chilly month in Plainfield, Tennessee, with temperature in the range of an average low of 35.2°F (1.8°C) and an average high of 49.5°F (9.7°C).

Temperature

December ushers in a minute temperature change, with average high-temperatures reducing from November's moderate 57.2°F (14°C) to a frosty 49.5°F (9.7°C). Plainfield records an average low of 35.2°F (1.8°C) throughout the nights in December.

Humidity

The most humid month is December, with an average relative humidity of 79%.

Rainfall

In December, the rain falls for 11.1 days. Throughout December, 1.54" (39mm) of precipitation is accumulated. Throughout the year, there are 148.2 rainfall days, and 18.23" (463mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, October through December. In Plainfield, in December, during 3.6 snowfall days, 0.63" (16mm) of snow is typically accumulated. Throughout the year, there are 18.9 snowfall days, and 3.58" (91mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 48min of daylight.
On the first day of December, sunrise is at 7:27 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:32 pm EST.

Sunshine

In December, the average sunshine is 5.2h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 2 during December translates into these guidelines:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Updated: Jun 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in December?

Plainfield in December has an average high-temperature of 49.5°F (9.7°C) and an average low-temperature of 35.2°F (1.8°C). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, is appraised at 86°F (30°C).

What is the most humid month?

The most humid month is December, with an average relative humidity of 79%.

What is the average humidity in December in Plainfield?

The average relative humidity in December is 79%.

How many days does it rain in December?

In Plainfield, in December, during 11.1 rainfall days, 1.54" (39mm) of precipitation is typically accumulated.

How much does it snow in Plainfield in December?

In Plainfield, in December, snow falls for 3.6 days, with typically accumulated 0.63" (16mm) 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.

How many hours of daylight does Plainfield have in December?

The average day length in December is 9h and 47min.

When is the sunrise / sunset in December?

On the first day of December in Plainfield, sunrise is at 7:27 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 5:32 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 5.2h.

When is the lowest UV index?

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

How high is the UV index in December?

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
Plainfield, TN

Average temperature in December - Plainfield, TN
  • Average high temperature in December: 49.5°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (44.8°F).

  • Average low temperature in December: 35.2°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 (29.5°F).

Average pressure in December
Plainfield, TN

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

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in December
Plainfield, TN

Average wind speed in December - Plainfield, TN
  • Average wind speed in December: 5.2mph

The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

Average humidity in December
Plainfield, TN

Average humidity in December - Plainfield, TN
  • Average humidity in December: 79%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (72%).

Average rainfall in December
Plainfield, TN

Average rainfall in December - Plainfield, TN
  • Average rainfall in December: 1.54"

The wettest month (with the highest rainfall) is July (2.2").
The driest month (with the least rainfall) is September (0.94").

Average rainfall days in December
Plainfield, TN

Average rainfall days in December - Plainfield, TN
  • Average rainfall days in December: 11.1 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is November (8.7 days).

Average snowfall in December
Plainfield, TN

Average snowfall in December - Plainfield, TN
  • Average snowfall in December: 0.63"

The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in December
Plainfield, TN

Average snowfall days in December - Plainfield, TN
  • Average snowfall days in December: 3.6 days

The month with the highest number of snowfall days is January (5.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

Average sunshine days in December
Plainfield, TN

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

The month with the most sunshine days is November (19.3 days).
The months with the least sunshine days are February and July (12.5 days).

Average UV index in December
Plainfield, TN

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

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in December
Plainfield, TN

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

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in December
Plainfield, TN

Average visibility in December - Plainfield, TN
  • Average visibility in December: 6mi

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

Plainfield, Tennessee, USA

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