Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The start of December comes with a reduction in the average high-temperature, receding from a refreshing 63.1°F (17.3°C) in November to a cool 52.9°F (11.6°C). December brings an average low-temperature of 36.3°F (2.4°C) to Ryan.Humidity
In Ryan, the average relative humidity in December is 65%.Rainfall
In December, in Ryan, Oklahoma, the rain falls for 4.3 days. Throughout December, 0.63" (16mm) of precipitation is accumulated. Throughout the year, 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 December, in Ryan, it is snowing for 0.8 days. Throughout December, 0.08" (2mm) of snow is accumulated. Throughout the year, there are 3.7 snowfall days, and 1.02" (26mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.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.
Sunshine
December has the least sunshine of the year, with an average of 6.1h of sunshine.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In December, a daily UV index of 2 turns into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun's radiation is especially intense around midday; try to stay in shade during this period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Ryan have in December?
What time are sunrise and sunset in December in Ryan?
What is the month with the least sunshine?
How long on average sun shines in December?
When is the lowest UV index in Ryan?
How high is the UV index in December?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Ryan, Oklahoma, USA
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