December weather forecast
Bartlesville, OK

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Weather in December

December ushers in the winter season in Bartlesville, commanding respect with chilly temperatures and limited daylight. Dense cloud cover takes over the sky, lending a wintry touch to the city’s appearance. The noticeably reduced daylight dwindles to a sparse 9.7 hours, quickening the arrival of darker evenings. Distinctively, the increase in snowfall to 0.51" (13mm) symbolizes the essence of the winter period. As the year concludes, Bartlesville's weather paints a chilly picture, preparing the inhabitants for another weather cycle.

Temperature

December shows a mild decline in the average high-temperature, falling from November's mild 57.7°F (14.3°C) to a chilly 47.3°F (8.5°C). Bartlesville records a steady low-temperature average of 32.2°F (0.1°C) during December.

Humidity

The average relative humidity in December is 69%.

Rainfall

In Bartlesville, in December, it is raining for 6.1 days, with typically 1.1" (28mm) of accumulated precipitation. In Bartlesville, during the entire year, the rain falls for 131.6 days and collects up to 29.06" (738mm) of precipitation.

Snowfall

Months with snowfall in Bartlesville are January through March, November and December. In December, it is snowing for 1.5 days. Throughout December, 0.51" (13mm) of snow is accumulated. In Bartlesville, during the entire year, snow falls for 7.2 days and aggregates up to 3.11" (79mm) of snow.

Daylight

With an average of 9h and 42min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:18 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:18 pm CST.

Sunshine

The months with the least sunshine are January and December, with an average of 5.8h of sunshine.

UV index

January 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 low health risk from exposure to the Sun's UV rays for the ordinary person.
Note: An average UV index of 2 in December transforms into this advice:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average December temperature?

December temperatures vary between a high-temperature of 47.3°F (8.5°C) and a low-temperature of 32.2°F (0.1°C). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in September is estimated at 86°F (30°C).

What is the average humidity in December?

In December, the average relative humidity is 69%.

How many days does it rain in December?

In Bartlesville, during December, the rain falls for 6.1 days and regularly aggregates up to 1.1" (28mm) of precipitation.

How much does it snow in December?

In Bartlesville, in December, during 1.5 snowfall days, 0.51" (13mm) of snow is typically accumulated.

What is the month with the shortest days?

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

How many hours of daylight does Bartlesville have in December?

In Bartlesville, the average day length in December is 9h and 42min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:18 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:18 pm CST.

What is the month with the least sunshine?

January and December, with an average of 5.8h of sunshine, are months with the least sunshine.

How many hours of sunshine does Bartlesville have in December?

In December, the average sunshine duration is 5.8h.

When is the lowest UV index?

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

How high is the UV index in December?

In Bartlesville, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents 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
Bartlesville, OK

Average temperature in December - Bartlesville, OK
  • Average high temperature in December: 47.3°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in December: 32.2°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).

Average pressure in December
Bartlesville, OK

Average pressure in December - Bartlesville, OK
  • 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 (29.89"Hg).

Average wind speed in December
Bartlesville, OK

Average wind speed in December - Bartlesville, OK
  • Average wind speed in December: 9.2mph

The windiest month (with the highest average wind speed) is March (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

Average humidity in December
Bartlesville, OK

Average humidity in December - Bartlesville, OK
  • Average humidity in December: 69%

The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January, October and November (68%).

Average rainfall in December
Bartlesville, OK

Average rainfall in December - Bartlesville, OK
  • Average rainfall in December: 1.1"

The wettest month (with the highest rainfall) is May (5.08").
The driest month (with the least rainfall) is November (1.02").

Average rainfall days in December
Bartlesville, OK

Average rainfall days in December - Bartlesville, OK
  • Average rainfall days in December: 6.1 days

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (5.8 days).

Average snowfall in December
Bartlesville, OK

Average snowfall in December - Bartlesville, OK
  • Average snowfall in December: 0.51"

The month with the highest snowfall is February (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Bartlesville, OK

Average snowfall days in December - Bartlesville, OK
  • Average snowfall days in December: 1.5 days

The month with the highest number of snowfall days is February (2.4 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
Bartlesville, OK

Average daylight in December / Average sunshine in December - Bartlesville, OK
  • 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: 5h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 48min).

Average sunshine days in December
Bartlesville, OK

Average sunshine days in December - Bartlesville, OK
  • Average sunshine days in December: 22.2 days

The month with the most sunshine days is January (22.5 days).
The month with the least sunshine days is May (13.3 days).

Average UV index in December
Bartlesville, OK

Average UV index in December - Bartlesville, OK
  • Average UV index in December: 2

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

Average cloud cover in December
Bartlesville, OK

Average cloud cover in December - Bartlesville, OK
  • Average cloud cover in December: 35

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 22).

Average visibility in December
Bartlesville, OK

Average visibility in December - Bartlesville, 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).

Bartlesville, Oklahoma, USA

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