December weather forecastBethany, OK
December
Weather in December
Rounding up the year, December brings back colder temperatures in Bethany, the snowfall again being a possibility with 0.55" (14mm). The daylight hours are limited, but the city remains fairly sunlit. Despite the cold, the overall December weather remains quite stable with no significant hikes or drops in the climatic parameters. Frequents moments of clear skies and comfortable wind speed are featured in Bethany's December weather. It holds the heart of winter, sparking the spirit of holiday season.Temperature
The onset of December coincides with a reduction in the average high-temperature, falling from a mild 59.5°F (15.3°C) in November to a frosty 49.1°F (9.5°C). During December, an average low-temperature of 33.1°F (0.6°C) is observed.Humidity
In Bethany, the average relative humidity in December is 66%.Rainfall
December is the month with the least rainfall. Rain falls for 6 days and accumulates 0.94" (24mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Bethany, Oklahoma, in December, snow falls for 1.9 days, with typically accumulated 0.55" (14mm) of snow. In Bethany, during the entire year, snow falls for 8.9 days and aggregates up to 3.46" (88mm) of snow.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:22 am and sunset at 5:17 pm. On the last day of December, sunrise is at 7:39 am and sunset at 5:28 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 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 of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: The UV index of 2 during December translates into the following guidance:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bethany, OK
- Average high temperature in December: 49.1°F
The warmest month (with the highest average high temperature) is July (93.7°F).
The month with the lowest average high temperature is January (48.6°F).
- Average low temperature in December: 33.1°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
Bethany, 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
Bethany, OK
- Average wind speed in December: 10.5mph
The windiest month (with the highest average wind speed) is April (12.4mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity in December
Bethany, 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 (59%).
Average rainfall in December
Bethany, OK
- Average rainfall in December: 0.94"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is December (0.94").
Average rainfall days in December
Bethany, OK
- Average rainfall days in December: 6 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (4.4 days).
Average snowfall in December
Bethany, OK
- Average snowfall in December: 0.55"
The month with the highest snowfall is February (1.3").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Bethany, OK
- Average snowfall days in December: 1.9 days
The month with the highest number of snowfall days is February (3.2 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
Bethany, 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 and 0min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in December
Bethany, OK
- Average sunshine days in December: 22.5 days
The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is May (13.8 days).
Average UV index in December
Bethany, 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
Bethany, OK
- Average cloud cover in December: 32
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in December
Bethany, 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).





