December weather forecastOwasso, OK
December
Weather in December
In December, Owasso, Oklahoma, welcomes winter with an average high temperature of 48°F (8.9°C) and a slight snowfall of 0.16" (4mm). The chilly weather of November remains stagnant with a slight drop in temperature. Warm clothing becomes indispensable. The weather conditions enable festive activities that are traditionally characteristic of the holiday season. As January approaches, the temperatures are projected to dip a bit more, thus sustaining the winter season.Temperature
In Owasso, the beginning of December is marked by a lowered average high-temperature, shifting from November's mild 58.8°F (14.9°C) to a chilly 48°F (8.9°C). Owasso, during the nights of December, experiences an average temperature drop to an icy 34.3°F (1.3°C).Humidity
In Owasso, the average relative humidity in December is 70%.Rainfall
In Owasso, in December, during 6.4 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. Throughout the year, there are 126.3 rainfall days, and 21.46" (545mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Owasso, in December, during 1.5 snowfall days, 0.16" (4mm) of snow is typically accumulated. In Owasso, during the entire year, snow falls for 6.7 days and aggregates up to 1.54" (39mm) of snow.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year in Owasso, Oklahoma.On the first day of December, sunrise is at 7:16 am and sunset at 5:08 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:18 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 5.6h of sunshine.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Owasso, OK
- Average high temperature in December: 48°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 (46.2°F).
- Average low temperature in December: 34.3°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 (30.9°F).
Average pressure in December
Owasso, 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 (29.9"Hg).
Average wind speed in December
Owasso, OK
- Average wind speed in December: 9.3mph
The windiest months (with the highest average wind speed) are March and April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in December
Owasso, OK
- Average humidity in December: 70%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are August and October (67%).
Average rainfall in December
Owasso, OK
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is May (3.86").
The driest months (with the least rainfall) are February and November (0.87").
Average rainfall days in December
Owasso, OK
- Average rainfall days in December: 6.4 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in December
Owasso, OK
- Average snowfall in December: 0.16"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Owasso, 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 May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Owasso, 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 months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in December
Owasso, OK
- Average sunshine days in December: 21.6 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is May (13.5 days).
Average UV index in December
Owasso, 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
Owasso, 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 20).
Average visibility in December
Owasso, 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).
