Tulsa
Oklahoma, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Tulsa, OK

A bridge over the Arkansas River overlooking the scenic Tulsa city in Oklahoma
A bridge over the Arkansas River overlooking the scenic Tulsa city in Oklahoma
The first month of the winter, December, is also a frosty month in Tulsa, Oklahoma, with average temperature ranging between min 29.7°F (-1.3°C) and max 49.3°F (9.6°C).

Temperature

In December, the average high-temperature decreases, from an enjoyable 61°F (16.1°C) in November, to a chilly 49.3°F (9.6°C). In December, the average low-temperature is 29.7°F (-1.3°C).

Humidity

In Tulsa, the average relative humidity in December is 68.5%.

Rainfall

In Tulsa, it is raining for 7 days, with typically 2.5" (63.2mm) of accumulated precipitation. In Tulsa, during the entire year, the rain falls for 92.9 days and collects up to 41" (1040.7mm) of precipitation.

Snowfall

Months with snowfall in Tulsa are January through March, November and December.

Daylight

The month with the shortest days in Tulsa, Oklahoma, is December, with an average of 9.7h of daylight.

Sunshine

With an average of 5.2h of sunshine, December has the least sunshine of the year.

UV index

Months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to the UV radiation for the average person.
In December, the average maximum UV index of 2 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Tulsa?

In December, in Tulsa, the average high-temperature is 49.3°F (9.6°C), and the average low-temperature is 29.7°F (-1.3°C).

What is the average humidity in December in Tulsa?

In December, the average relative humidity in Tulsa is 68.5%.

How many days does it rain in December in Tulsa?

In December, the rain falls for 7 days. Throughout December, 2.5" (63.2mm) of precipitation is accumulated.

How many days does it snow in December in Tulsa?

In Tulsa, during December, snow falls for 1.6 days and regularly aggregates up to 2.3" (58.4mm) of snow.

What is the month with the shortest days in Tulsa?

December has the shortest days of the year, with an average of 9.7h of daylight.

How many hours of daylight does Tulsa have in December?

In December, the average length of the day in Tulsa, Oklahoma, is 9.7h.

What is the month with the least sunshine in Tulsa?

December has the least sunshine of the year in Tulsa, Oklahoma, with an average of 5.2h of sunshine.

How long on average sun shines in December in Tulsa?

In Tulsa, the average sunshine in December is 5.2h.

What are the months with the lowest UV index in Tulsa?

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

What is the UV index reading in December in Tulsa?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV rays.
Average temperature in December - Tulsa, OK
  • Average high temperature in December: 49.3°F

Warmest months (with the highest average high temperature) are July and August (93.1°F).
The month with the lowest average high temperature is January (48°F).

  • Average low temperature in December: 29.6°F

The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).

Average humidity in December - Tulsa, OK
  • Average humidity in December: 68.5%

The month with the highest relative humidity is September (70.1%).
The month with the lowest relative humidity is April (61.2%).

Average rainfall in December - Tulsa, OK
  • Average rainfall in December: 2.5"

The wettest month (with the highest rainfall) is May (5.9").
The driest month (with the lowest rainfall) is January (1.7").

Average rainfall days in December - Tulsa, OK
  • Average rainfall days in December: 7 days

The month with the highest number of rainy days is May (10.5 days).
The month with the lowest number of rainy days is January (6.1 days).

Average snowfall in December - Tulsa, OK
  • Average snowfall in December: 2.3"

The month with the highest snowfall is January (2.7").
Months with the lowest snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December - Tulsa, OK
  • Average snowfall days in December: 1.6 days

The month with the highest number of snowfall days is January (1.9 days).
Months with the lowest number of snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in December / Average sunshine in December - Tulsa, OK
  • Average daylight in December: 9.7h

The month with the longest days is June (Average daylight: 14.6h).
The month with shortest days is December (Average daylight: 9.7h).

  • Average sunshine in December: 5.2h

The month with most sunshine is July (Average sunshine: 10.8h).
The month with least sunshine is December (Average sunshine: 5.2h).

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

Months with the highest UV index are June and July (UV index 10).
Months with the lowest UV index are January and December (UV index 2).