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

December in Bethany, Oklahoma, comes with a decrease in the average high-temperature, falling from a refreshing 59.5°F (15.3°C) in November to a frosty 49.1°F (9.5°C). In the month of December, Bethany's average low-temperature falls to a wintry 33.1°F (0.6°C).

Humidity

In December, the average relative humidity in Bethany, Oklahoma, is 66%.

Rainfall

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

Snowfall

January through April, November and December are months with snowfall in Bethany. In December, it is snowing for 1.9 days. Throughout December, 0.55" (14mm) of snow is accumulated. Throughout the year, in Bethany, there are 8.9 snowfall days, and 3.46" (88mm) of snow is accumulated.

Daylight

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

Sunshine

The month with the least sunshine is December, with an average of 6h of sunshine.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 2 during December leads to these advisories:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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Frequently asked questions

What is the average December temperature in Bethany?

In Bethany, 49.1°F (9.5°C) is the average high-temperature and 33.1°F (0.6°C) is the average low-temperature during December. In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 89.6°F (32°C).

What is the average humidity in December in Bethany?

The average relative humidity in December is 66%.

What is the driest month in Bethany?

The month with the least rainfall in Bethany, Oklahoma, 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?

In Bethany, Oklahoma, in December, during 6 rainfall days, 0.94" (24mm) of precipitation is typically accumulated.

How many days does it snow in December in Bethany?

In Bethany, in December, snow falls for 1.9 days, with typically accumulated 0.55" (14mm) of snow.

What is the month with the shortest days in Bethany?

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

How many hours of daylight does Bethany have in December?

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

What time are sunrise and sunset in December in Bethany?

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

What is the month with the least sunshine in Bethany?

The month with the least sunshine in Bethany, Oklahoma, is December, with an average of 6h of sunshine.

How many hours of sunshine does Bethany have in December?

The average sunshine duration in December in Bethany is 6h.

When is the lowest UV index in Bethany?

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

How high is the UV index in December in Bethany?

In Bethany, Oklahoma, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJFMAMJJASONDecember
Nov
December
Jan
Average high temperature
59.5°F 15.3°C
49.1°F 9.5°C
48.6°F 9.2°C
Average low temperature
42.1°F 5.6°C
33.1°F 0.6°C
31.6°F -0.2°C
Average pressure
30.1" 765mmHg
30.13" 765mmHg
30.16" 766mmHg
Average wind speed
11.4mph 18.3km/h
10.5mph 16.9km/h
11.1mph 17.9km/h
Average max. wind speed
12.3mph 19.8km/h
11.3mph 18.2km/h
12mph 19.3km/h
Average wind speed gusts
18.3mph 29.5km/h
17mph 27.4km/h
17.9mph 28.8km/h
Average humidity
65%
66%
62%
Average rainfall
1.1" 28mm
0.94" 24mm
1.02" 26mm
Average rainfall days
6.7
6
4.4
Average snowfall
0.08" 2mm
0.55" 14mm
1.14" 29mm
Average snowfall days
0.6
1.9
2
Average daylight
10h 2min
9h 5min
10h 1min
Average sunshine
6h 1min
6h 0min
6h 1min
Average sunshine days
21.7
22.5
24.3
Average UV index
3
2
3
Average cloud cover
28%
32%
27%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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).

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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).

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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).

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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).

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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).

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Bethany, Oklahoma, USA

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