December weather forecast
Karnack, TX

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Weather in December

The first month of the winter, December, is still a refreshing month in Karnack, Texas, with an average temperature fluctuating between 55.8°F (13.2°C) and 41.2°F (5.1°C).

Temperature

The transition to December results in a modest reduction in average high-temperature, moving from a comfortable 63.9°F (17.7°C) in November to a mild 55.8°F (13.2°C). December nights in Karnack experience a consistent temperature drop to a wintry 41.2°F (5.1°C).

Humidity

The average relative humidity in December in Karnack is 80%.

Rainfall

In Karnack, in December, during 11.3 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. In Karnack, during the entire year, the rain falls for 143.1 days and collects up to 27.32" (694mm) of precipitation.

Snowfall

January through March and December are months with snowfall in Karnack. December is the first month it typically snows. Throughout December, in the average 0.5 snowfall days, it receives 0.04" (1mm) of snow. In Karnack, during the entire year, snow falls for 2.9 days and aggregates up to 0.71" (18mm) of snow.

Daylight

The month with the shortest days is December, with an average of 10h and 0min of daylight.
On the first day of December in Karnack, sunrise is at 7:01 am and sunset at 5:10 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:21 pm CST.

Sunshine

The month with the least sunshine in Karnack is December, with an average of 5.1h of sunshine.

UV index

The months with the lowest UV index in Karnack, Texas, are January, February and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 3 in December interprets into the following advice:
Undertake precautions - Guarding against sun damage is counselled. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Karnack in December?

The high-temperature in Karnack during December is 55.8°F (13.2°C) and the low-temperature is 41.2°F (5.1°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is computed to be 102.2°F (39°C).

What is the average humidity in December in Karnack?

In December, the average relative humidity in Karnack is 80%.

How many days does it rain in December in Karnack?

In Karnack, Texas, during December, the rain falls for 11.3 days and regularly aggregates up to 2.68" (68mm) of precipitation.

When does it start to snow in Karnack?

December is the first month it typically snows. Throughout December, in the average 0.5 snowfall days, it receives 0.04" (1mm) of snow.

What is the month with the shortest days in Karnack?

The month with the shortest days in Karnack, Texas, is December, with an average of 10h and 0min of daylight.

How many hours of daylight does Karnack have in December?

In Karnack, the average day length in December is 10h and 2min.

When are sunrise and sunset in December in Karnack?

On the first day of December in Karnack, Texas, sunrise is at 7:01 am and sunset at 5:10 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:21 pm CST.

What is the month with the least sunshine in Karnack?

December has the least sunshine of the year in Karnack, Texas, with an average of 5.1h of sunshine.

How many hours of sunshine does Karnack have in December?

In Karnack, Texas, the average sunshine duration in December is 5.1h.

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

The months with the lowest UV index in Karnack are January, February and December, with an average maximum UV index of 3.

How high is the UV index in December in Karnack?

In Karnack, Texas, the average daily maximum UV index in December is 3. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Karnack, TX

Average temperature in December - Karnack, TX
  • Average high temperature in December: 55.8°F

The warmest month (with the highest average high temperature) is July (95°F).
The month with the lowest average high temperature is January (54°F).

  • Average low temperature in December: 41.2°F

The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).

Average pressure in December
Karnack, TX

Average pressure in December - Karnack, TX
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Karnack, TX

Average wind speed in December - Karnack, TX
  • Average wind speed in December: 6.2mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in December
Karnack, TX

Average humidity in December - Karnack, TX
  • Average humidity in December: 80%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (67%).

Average rainfall in December
Karnack, TX

Average rainfall in December - Karnack, TX
  • Average rainfall in December: 2.68"

The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is September (1.38").

Average rainfall days in December
Karnack, TX

Average rainfall days in December - Karnack, TX
  • Average rainfall days in December: 11.3 days

The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is October (8.6 days).

Average snowfall in December
Karnack, TX

Average snowfall in December - Karnack, TX
  • Average snowfall in December: 0.04"

The month with the highest snowfall is January (0.35").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Karnack, TX

Average snowfall days in December - Karnack, TX
  • Average snowfall days in December: 0.5 days

The month with the highest number of snowfall days is February (1.1 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
Karnack, TX

Average daylight in December / Average sunshine in December - Karnack, TX
  • Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

Average sunshine days in December
Karnack, TX

Average sunshine days in December - Karnack, TX
  • Average sunshine days in December: 17.2 days

The month with the most sunshine days is October (20.9 days).
The month with the least sunshine days is July (13.3 days).

Average UV index in December
Karnack, TX

Average UV index in December - Karnack, TX
  • Average UV index in December: 3

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).

Average cloud cover in December
Karnack, TX

Average cloud cover in December - Karnack, TX
  • Average cloud cover in December: 46

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in December
Karnack, TX

Average visibility in December - Karnack, TX
  • Average visibility in December: 6mi

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

Karnack, Texas, USA

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