December weather forecast
Cookeville, TN

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Weather in December

December witnesses the full force of winter in Cookeville with the onset of the colder months. Shorter daylight hours, lower temperatures, and an increased chance of snowfall mark the city's weather patterns for this month. Compared to November, December sees a continuation of the cold weather, but with increased severity and fluctuation in weather events. With a noticeable dip in temperatures, ranging between 34.7°F (1.5°C) and 48.2°F (9°C), the month features the year's lowest temperature averages. As the year concludes, Cookeville residents prepare for the continued chill of January, promising a similar cycle of weather in the year to follow.

Temperature

December's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from November's mild 56.3°F (13.5°C) to a frosty 48.2°F (9°C). An average low-temperature of 34.7°F (1.5°C) is observed during December nights.

Humidity

The months with the highest humidity are February, March and December, with an average relative humidity of 79%.

Rainfall

In Cookeville, during December, the rain falls for 13.6 days and regularly aggregates up to 3.11" (79mm) of precipitation. In Cookeville, during the entire year, the rain falls for 173.9 days and collects up to 38.31" (973mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In December, it is snowing for 2.6 days. Throughout December, 0.51" (13mm) of snow is accumulated. In Cookeville, Tennessee, during the entire year, snow falls for 13.7 days and aggregates up to 2.99" (76mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 42min of daylight.
On the first day of December, sunrise is at 6:35 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 4:37 pm CST.

Sunshine

The average sunshine in December is 4.7h.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In December, the UV index of 2 transforms into the following advice:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. To protect against the Sun's most potent rays, avoid direct exposure around midday. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Updated: Jun 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December?

The high-temperature, in December, in Cookeville, is 48.2°F (9°C), while the low-temperature averages to 34.7°F (1.5°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in August is appraised at 98.6°F (37°C).

What is the most humid month?

The months with the highest humidity are February, March and December, with an average relative humidity of 79%.

What is the average humidity in December?

In December, the average relative humidity is 79%.

How many days does it rain in December?

In Cookeville, in December, during 13.6 rainfall days, 3.11" (79mm) of precipitation is typically accumulated.

How many days does it snow in December?

In Cookeville, Tennessee, during December, snow falls for 2.6 days and regularly aggregates up to 0.51" (13mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 42min of daylight.

What is the average length of the day in December?

In Cookeville, the average day length in December is 9h and 45min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:35 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 4:37 pm CST.

How many hours of sunshine does Cookeville have in December?

In Cookeville, the average sunshine duration in December is 4.7h.

What is the month with the lowest UV index?

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

What is the UV index reading in December in Cookeville?

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

Average temperature in December - Cookeville, TN
  • Average high temperature in December: 48.2°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (43.5°F).

  • Average low temperature in December: 34.7°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 (29.3°F).

Average pressure in December
Cookeville, TN

Average pressure in December - Cookeville, 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 (29.97"Hg).

Average wind speed in December
Cookeville, TN

Average wind speed in December - Cookeville, TN
  • Average wind speed in December: 6.8mph

The windiest month (with the highest average wind speed) is February (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).

Average humidity in December
Cookeville, TN

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

The months with the highest relative humidity are February, March and December (79%).
The month with the lowest relative humidity is November (75%).

Average rainfall in December
Cookeville, TN

Average rainfall in December - Cookeville, TN
  • Average rainfall in December: 3.11"

The wettest month (with the highest rainfall) is February (4.09").
The driest month (with the least rainfall) is September (2.01").

Average rainfall days in December
Cookeville, TN

Average rainfall days in December - Cookeville, TN
  • Average rainfall days in December: 13.6 days

The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is November (10.8 days).

Average snowfall in December
Cookeville, TN

Average snowfall in December - Cookeville, TN
  • Average snowfall in December: 0.51"

The month with the highest snowfall is February (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Cookeville, TN

Average snowfall days in December - Cookeville, TN
  • Average snowfall days in December: 2.6 days

The month with the highest number of snowfall days is January (4.6 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
Cookeville, TN

Average daylight in December / Average sunshine in December - Cookeville, TN
  • Average daylight in December: 9h and 4min

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 42min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

Average sunshine days in December
Cookeville, TN

Average sunshine days in December - Cookeville, TN
  • Average sunshine days in December: 15.2 days

The month with the most sunshine days is October (18.2 days).
The months with the least sunshine days are February and July (11.3 days).

Average UV index in December
Cookeville, TN

Average UV index in December - Cookeville, 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
Cookeville, TN

Average cloud cover in December - Cookeville, TN
  • Average cloud cover in December: 51

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in December
Cookeville, TN

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

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

Cookeville, Tennessee, USA

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