December weather forecastOkay, OK

December

Weather in December

The first month of the winter, December, is still a chilly month in Okay, Oklahoma, with an average temperature ranging between min 34.9°F (1.6°C) and max 49.1°F (9.5°C).

Temperature

Transition from November to December is accompanied by a temperature drop, with average high-temperatures decreasing from a moderate 59.4°F (15.2°C) to a chilly 49.1°F (9.5°C). Okay experiences an average nighttime temperature of 34.9°F (1.6°C) in the month of December.

Humidity

In December, the average relative humidity is 72%.

Rainfall

In Okay, during December, the rain falls for 7.8 days and regularly aggregates up to 1.85" (47mm) of precipitation. Throughout the year, there are 134.9 rainfall days, and 32.36" (822mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. In Okay, in December, snow falls for 1 days, with typically accumulated 0.31" (8mm) of snow. Throughout the year, there are 5.7 snowfall days, and 2.64" (67mm) of snow is accumulated.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:13 am and sunset at 5:07 pm. On the last day of December, sunrise is at 7:31 am and sunset at 5:17 pm CST.

Sunshine

The month with the least sunshine is December, with an average of 5.5h of sunshine.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 2 during December translates into the following directions:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Okay, in December, the average high-temperature is 49.1°F (9.5°C), and the average low-temperature is 34.9°F (1.6°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in September is computed to be 91.4°F (33°C).

The average relative humidity in December is 72%.

In Okay, during December, the rain falls for 7.8 days and regularly aggregates up to 1.85" (47mm) of precipitation.

In December, it is snowing for 1 days. Throughout December, 0.31" (8mm) of snow is accumulated.

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

In December, the average day length is 9h and 47min.

On the first day of December, sunrise is at 7:13 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 5:17 pm CST.

With an average of 5.5h of sunshine, December has the least sunshine of the year.

In Okay, 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.

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat from unprotected exposure to 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
Okay, OK

  • Average high temperature in December: 49.1°F

The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (46.9°F).

  • Average low temperature in December: 34.9°F

The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

Average pressure in December
Okay, 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 (29.91"Hg).

Average wind speed in December
Okay, OK

  • Average wind speed in December: 8.7mph

The windiest month (with the highest average wind speed) is March (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).

Average humidity in December
Okay, OK

  • Average humidity in December: 72%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is August (68%).

Average rainfall in December
Okay, OK

  • Average rainfall in December: 1.85"

The wettest month (with the highest rainfall) is May (4.69").
The driest month (with the least rainfall) is February (1.65").

Average rainfall days in December
Okay, OK

  • Average rainfall days in December: 7.8 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (7.1 days).

Average snowfall in December
Okay, OK

  • Average snowfall in December: 0.31"

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

Average snowfall days in December
Okay, OK

  • Average snowfall days in December: 1 days

The month with the highest number of snowfall days is February (2.3 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
Okay, OK

  • Average daylight in December: 9h and 48min

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: 5h and 30min

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in December
Okay, OK

  • Average sunshine days in December: 20.8 days

The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is April (13.2 days).

Average UV index in December
Okay, 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
Okay, OK

  • Average cloud cover in December: 37

The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in December
Okay, 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).