December weather forecast
Bethany, OK

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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.

Frequently asked questions

What is the usual temperature for Bethany in December?

In December, the average high-temperature and low-temperature are 49.1°F (9.5°C) and 33.1°F (0.6°C) respectively. In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 89.6°F (32°C).

What is the average humidity in December?

The average relative humidity in December is 66%.

What is the driest month in Bethany?

The month with the least rainfall is December, when the rain falls for 6 days and typically collects 0.94" (24mm) of precipitation.

How many days does it rain in December?

In Bethany, Oklahoma, in December, it is raining for 6 days, with typically 0.94" (24mm) of accumulated precipitation.

How many days does it snow in December?

In Bethany, in December, during 1.9 snowfall days, 0.55" (14mm) of snow is typically accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 48min of daylight.

How many hours of daylight does Bethany have in December?

In December, the average day length is 9h and 48min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:22 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 5:28 pm CST.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 6h of sunshine.

How long on average sun shines in December?

In December, the average sunshine duration is 6h.

When is the lowest UV index in Bethany?

The month with the lowest UV index is December, with an average maximum UV index of 2.

What is the UV index reading in December?

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Bethany, OK

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in December - Bethany, OK
  • Average daylight in December: 9h and 5min

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 - 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 - 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 - 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 - 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).

Bethany, Oklahoma, USA

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