December weather forecastWynona, OK
December
Weather in December
The first month of the winter, December, is still a chilly month in Wynona, Oklahoma, with an average temperature varying between 33.4°F (0.8°C) and 47.5°F (8.6°C).Temperature
In Wynona, entering December brings a temperature decrement, reducing from November's mild 58.1°F (14.5°C) to a frosty 47.5°F (8.6°C). Wynona encounters an average low-temperature of 33.4°F (0.8°C) during December nights.Humidity
In December, the average relative humidity is 68%.Rainfall
January, November and December are months with the least rain when the rain falls for 6.5 days and typically aggregates up to 1.1" (28mm) of rain.Snowfall
Months with snowfall in Wynona are January through March, November and December. In Wynona, in December, during 1.5 snowfall days, 0.31" (8mm) of snow is typically accumulated. In Wynona, during the entire year, snow falls for 7.3 days and aggregates up to 3.03" (77mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 7:19 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:20 pm CST.
Sunshine
With an average of 5.8h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Wynona, OK
- Average high temperature in December: 47.5°F
The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (45.5°F).
- Average low temperature in December: 33.4°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in December
Wynona, 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
Wynona, OK
- Average wind speed in December: 9.4mph
The windiest months (with the highest average wind speed) are March and April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in December
Wynona, OK
- Average humidity in December: 68%
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and October (66%).
Average rainfall in December
Wynona, OK
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is May (5.2").
The driest months (with the least rainfall) are January, November and December (1.1").
Average rainfall days in December
Wynona, OK
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is January (5.7 days).
Average snowfall in December
Wynona, OK
- Average snowfall in December: 0.31"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Wynona, OK
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Wynona, OK
- Average daylight in December: 9h and 42min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 5h and 48min
The months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in December
Wynona, OK
- Average sunshine days in December: 21.7 days
The month with the most sunshine days is January (23 days).
The month with the least sunshine days is April (13.4 days).
Average UV index in December
Wynona, OK
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Wynona, OK
- Average cloud cover in December: 35
The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in December
Wynona, 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).
