December weather forecastCedar Knobb, OK

December

Weather in December

The first month of the winter, December, is still a cool month in Cedar Knobb, Oklahoma, with temperature in the range of an average low of 35.4°F (1.9°C) and an average high of 50.5°F (10.3°C).

Temperature

In Cedar Knobb, the beginning of December is marked by a lowered average high-temperature, shifting from November's moderate 60.1°F (15.6°C) to a cool 50.5°F (10.3°C). Cedar Knobb's average low-temperature in December is measured at a cold 35.4°F (1.9°C).

Humidity

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

Rainfall

In December, the rain falls for 9.7 days. Throughout December, 2.64" (67mm) of precipitation is accumulated. Throughout the year, there are 149.7 rainfall days, and 35.08" (891mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall. In December, it is snowing for 0.9 days. Throughout December, 0.59" (15mm) of snow is accumulated. Throughout the year, there are 5.1 snowfall days, and 3.15" (80mm) 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 the month, sunrise is at 7:08 am and sunset at 5:05 pm. On the last day of December, sunrise is at 7:26 am and sunset at 5:16 pm CST.

Sunshine

January and December, with an average of 5.5h of sunshine, are months with the least sunshine.

UV index

With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 2 during December leads to these advisories:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Updated: Jul 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature and low-temperature during December are 50.5°F (10.3°C) and 35.4°F (1.9°C) respectively. In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is estimated at 93.2°F (34°C).

The average relative humidity in December is 75%.

In December, the rain falls for 9.7 days. Throughout December, 2.64" (67mm) of precipitation is accumulated.

In Cedar Knobb, in December, during 0.9 snowfall days, 0.59" (15mm) of snow is typically accumulated.

The month with the shortest days in Cedar Knobb is December, with an average of 9h and 48min of daylight.

In December, the average day length is 9h and 50min.

In December, on the first day of the month, sunrise is at 7:08 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 5:16 pm CST.

The months with the least sunshine are January and December, with an average of 5.5h of sunshine.

In Cedar Knobb, the average sunshine duration in December is 5.5h.

With an average maximum UV index of 2, December is the month with the lowest UV index.

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Cedar Knobb, OK

  • Average high temperature in December: 50.5°F

The warmest month (with the highest average high temperature) is July (93.4°F).
The month with the lowest average high temperature is January (48°F).

  • Average low temperature in December: 35.4°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).

Average pressure in December
Cedar Knobb, OK

  • 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 (29.93"Hg).

Average wind speed in December
Cedar Knobb, OK

  • Average wind speed in December: 6.3mph

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in December
Cedar Knobb, OK

  • Average humidity in December: 75%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is August (69%).

Average rainfall in December
Cedar Knobb, OK

  • Average rainfall in December: 2.64"

The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is January (2.05").

Average rainfall days in December
Cedar Knobb, OK

  • Average rainfall days in December: 9.7 days

The month with the highest number of rainy days is March (15.4 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in December
Cedar Knobb, OK

  • Average snowfall in December: 0.59"

The month with the highest snowfall is February (1.06").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Cedar Knobb, OK

  • Average snowfall days in December: 0.9 days

The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Cedar Knobb, OK

  • Average daylight in December: 9h and 48min

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 30min

The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).

Average sunshine days in December
Cedar Knobb, OK

  • Average sunshine days in December: 19.3 days

The months with the most sunshine days are November and December (19.3 days).
The month with the least sunshine days is July (13.3 days).

Average UV index in December
Cedar Knobb, OK

  • Average UV index in December: 2

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

Average cloud cover in December
Cedar Knobb, OK

  • Average cloud cover in December: 40

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 24).

Average visibility in December
Cedar Knobb, OK

  • 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).