December weather forecastTulsa, OK
December
Weather in December
December welcomes the full arrival of winter in Tulsa, Oklahoma, with temperatures consistently falling compared to November. The weather becomes significantly colder with an increased chance of snowfall, providing a characteristic winter scenario. Despite being the month with the shortest daylight hours, the festive spirit of the holiday season brightens up Tulsa. The winds persist, occasionally gusting, and add an extra chilling factor to the already dropping temperatures.Temperature
December's arrival coincides with a drop in the average high-temperature, decreasing from November's mild 59°F (15°C) to a frosty 48.6°F (9.2°C). In December, the temperature in Tulsa drops to an average of 34.5°F (1.4°C) at night.Humidity
In Tulsa, the average relative humidity in December is 69%.Rainfall
In December, the rain falls for 4.9 days. Throughout December, 1.02" (26mm) of precipitation is accumulated. Throughout the year, there are 117.1 rainfall days, and 20.28" (515mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Tulsa, in December, snow falls for 1 days, with typically accumulated 0.24" (6mm) of snow. In Tulsa, during the entire year, snow falls for 6.1 days and aggregates up to 1.85" (47mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 7:17 am and sunset at 5:09 pm. On the last day of December, sunrise is at 7:34 am and sunset at 5:19 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 5.6h of sunshine.UV index
The month with the lowest UV index is December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: A maximum high UV index of 2 in December translates into the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. During bright days, sunglasses that offer UVA and UVB defense are recommended. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Tulsa, OK
- Average high temperature in December: 48.6°F
The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (46.6°F).
- Average low temperature in December: 34.5°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).
Average pressure in December
Tulsa, 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
Tulsa, OK
- Average wind speed in December: 9.2mph
The windiest month (with the highest average wind speed) is March (10.7mph).
The calmest month (with the lowest average wind speed) is July (7mph).
Average humidity in December
Tulsa, OK
- Average humidity in December: 69%
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January, August and October (67%).
Average rainfall in December
Tulsa, OK
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in December
Tulsa, OK
- Average rainfall days in December: 4.9 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is December (4.9 days).
Average snowfall in December
Tulsa, OK
- Average snowfall in December: 0.24"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Tulsa, OK
- Average snowfall days in December: 1 days
The month with the highest number of snowfall days is February (2.4 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
Tulsa, OK
- Average daylight in December: 9h and 42min
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 36min
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 36min).
Average sunshine days in December
Tulsa, OK
- Average sunshine days in December: 22.7 days
The month with the most sunshine days is December (22.7 days).
The month with the least sunshine days is May (14.3 days).
Average UV index in December
Tulsa, OK
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Tulsa, OK
- Average cloud cover in December: 36
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in December
Tulsa, 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).
