December weather forecast
Ryan, OK

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Weather in December

The first month of the winter, December, is still a cool month in Ryan, Oklahoma, with an average temperature varying between 36.3°F (2.4°C) and 52.9°F (11.6°C).

Temperature

The beginning of December involves a decrease in the average high-temperature, transitioning from an enjoyable 63.1°F (17.3°C) in November to a cool 52.9°F (11.6°C). An average minimum temperature of 36.3°F (2.4°C) marks the month of December in Ryan.

Humidity

The average relative humidity in December is 65%.

Rainfall

In December, the rain falls for 4.3 days. Throughout December, 0.63" (16mm) of precipitation is accumulated. Throughout the year, in Ryan, Oklahoma, there are 99.5 rainfall days, and 15.79" (401mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through March, November and December. In Ryan, in December, snow falls for 0.8 days, with typically accumulated 0.08" (2mm) of snow. In Ryan, during the entire year, snow falls for 3.7 days and aggregates up to 1.02" (26mm) of snow.

Daylight

December has the shortest days of the year in Ryan, with an average of 9h and 54min of daylight.
On the first day of December in Ryan, sunrise is at 7:19 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:33 pm CST.

Sunshine

With an average of 6.1h 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 minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
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Frequently asked questions

What is the usual temperature for Ryan in December?

The average high-temperature, in December, in Ryan, is 52.9°F (11.6°C), while the average low-temperature is 36.3°F (2.4°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in September is appraised at 93.2°F (34°C).

What is the average humidity in December in Ryan?

The average relative humidity in December in Ryan is 65%.

How much does it rain in Ryan in December?

In Ryan, in December, during 4.3 rainfall days, 0.63" (16mm) of precipitation is typically accumulated.

How many days does it snow in December in Ryan?

In Ryan, Oklahoma, during December, snow falls for 0.8 days and regularly aggregates up to 0.08" (2mm) of snow.

What is the month with the shortest days in Ryan?

December has the shortest days of the year in Ryan, Oklahoma, with an average of 9h and 54min of daylight.

How many hours of daylight does Ryan have in December?

The average day length in December is 9h and 56min.

What time are sunrise and sunset in December in Ryan?

On the first day of December, sunrise is at 7:19 am and sunset at 5:22 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:33 pm CST.

What is the month with the least sunshine in Ryan?

The month with the least sunshine in Ryan is December, with an average of 6.1h of sunshine.

How many hours of sunshine does Ryan have in December?

The average sunshine duration in December in Ryan, Oklahoma, is 6.1h.

When is the lowest UV index in Ryan?

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

What is the UV index intensity in December in Ryan?

The average daily maximum UV index in December in Ryan is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from exposure to Sun's UV rays.
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
Ryan, OK

Average temperature in December - Ryan, OK
  • Average high temperature in December: 52.9°F

The warmest month (with the highest average high temperature) is August (96.3°F).
The month with the lowest average high temperature is January (52.7°F).

  • Average low temperature in December: 36.3°F

The month with the highest average low temperature is July (74.7°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).

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Average pressure in December
Ryan, OK

Average pressure in December - Ryan, 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 (29.88"Hg).

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Average wind speed in December
Ryan, OK

Average wind speed in December - Ryan, OK
  • Average wind speed in December: 9.2mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is September (8mph).

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Average humidity in December
Ryan, OK

Average humidity in December - Ryan, OK
  • Average humidity in December: 65%

The month with the highest relative humidity is May (72%).
The month with the lowest relative humidity is August (53%).

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Average rainfall in December
Ryan, OK

Average rainfall in December - Ryan, OK
  • Average rainfall in December: 0.63"

The wettest month (with the highest rainfall) is May (2.87").
The driest months (with the least rainfall) are February and November (0.55").

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Average rainfall days in December
Ryan, OK

Average rainfall days in December - Ryan, OK
  • Average rainfall days in December: 4.3 days

The month with the highest number of rainy days is May (12.8 days).
The months with the least rainy days are January and December (4.3 days).

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Average snowfall in December
Ryan, OK

Average snowfall in December - Ryan, OK
  • Average snowfall in December: 0.08"

The month with the highest snowfall is February (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Ryan, OK

Average snowfall days in December - Ryan, OK
  • Average snowfall days in December: 0.8 days

The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Ryan, OK

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

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in December: 6h and 1min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).

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Average sunshine days in December
Ryan, OK

Average sunshine days in December - Ryan, OK
  • Average sunshine days in December: 25.3 days

The month with the most sunshine days is January (25.9 days).
The month with the least sunshine days is May (15.3 days).

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Average UV index in December
Ryan, OK

Average UV index in December - Ryan, 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
Ryan, OK

Average cloud cover in December - Ryan, OK
  • Average cloud cover in December: 31

The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is August (Cloud cover 18).

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Average visibility in December
Ryan, OK

Average visibility in December - Ryan, 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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Ryan, Oklahoma, USA

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