December weather forecastOklahoma City, OK

December
Weather in December
December wraps up the year in Oklahoma City, bringing with it low temperatures and an increase in snowfall. The shorter days and longer nights contribute to the city's winter wonderland aesthetics during the holiday season. Despite the cold, December brings a sense of warmth and joviality with the holiday fervor taking over the city. The onset of snowfall marks the official arrival of winter, and residents embrace the chill in the air. Finally, speaking of temperatures, the December range from 49.1°F (9.5°C) to 33.4°F (0.8°C) signifies the return to chilly conditions, bidding farewell to the year.Temperature
The commencement of December in Oklahoma City indicates a shift in the average high-temperature, receding from November's refreshing 59.5°F (15.3°C) to a frosty 49.1°F (9.5°C). Oklahoma City observes an average low-temperature of 33.4°F (0.8°C) during December.Humidity
The average relative humidity in December is 66%.Rainfall
December is the month with the least rainfall. Rain falls for 6.1 days and accumulates 0.91" (23mm) of precipitation.Snowfall
Months with snowfall in Oklahoma City are January through April, November and December. In Oklahoma City, in December, snow falls for 1.7 days, with typically accumulated 0.51" (13mm) of snow. In Oklahoma City, during the entire year, snow falls for 8.1 days and aggregates up to 3.54" (90mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 7:21 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 5:27 pm CST.
Sunshine
With an average of 6h of sunshine, December has the least sunshine of the year.UV index
December is the month with the lowest UV index, with an average maximum UV index of 2. 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 daily high UV index of 2 during December translates into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Oklahoma City, OK
- Average high temperature in December: 49.1°F
The warmest month (with the highest average high temperature) is July (93.6°F).
The month with the lowest average high temperature is January (48.6°F).
- Average low temperature in December: 33.4°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).
Average pressure in December
Oklahoma City, 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 (29.87"Hg).
Average wind speed in December
Oklahoma City, OK
- Average wind speed in December: 10.4mph
The windiest month (with the highest average wind speed) is April (12.3mph).
The calmest month (with the lowest average wind speed) is August (8.6mph).
Average humidity in December
Oklahoma City, OK
- Average humidity in December: 66%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (60%).
Average rainfall in December
Oklahoma City, OK
- Average rainfall in December: 0.91"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is December (0.91").
Average rainfall days in December
Oklahoma City, OK
- Average rainfall days in December: 6.1 days
The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in December
Oklahoma City, OK
- Average snowfall in December: 0.51"
The month with the highest snowfall is February (1.26").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Oklahoma City, OK
- Average snowfall days in December: 1.7 days
The month with the highest number of snowfall days is February (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
Oklahoma City, 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: 6h
The months with the most sunshine are July and August (Average sunshine: 11h).
The month with the least sunshine is December (Average sunshine: 6h).
Average sunshine days in December
Oklahoma City, OK
- Average sunshine days in December: 22.8 days
The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is May (13.9 days).
Average UV index in December
Oklahoma City, 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
Oklahoma City, OK
- Average cloud cover in December: 32
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in December
Oklahoma City, 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).





