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
As Vian enters December, the average high-temperature decreases from the a refreshing 59.9°F (15.5°C) of November to a fresh 50°F (10°C). December witnesses an average nighttime temperature of 35.4°F (1.9°C).Humidity
In December, the average relative humidity is 73%.Rainfall
In Vian, during December, the rain falls for 9.5 days and regularly aggregates up to 2.4" (61mm) of precipitation. Throughout the year, there are 149.8 rainfall days, and 34.76" (883mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Vian, in December, during 1.3 snowfall days, 0.71" (18mm) of snow is typically accumulated. Throughout the year, there are 7.3 snowfall days, and 2.91" (74mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 7:11 am and sunset at 5:07 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:17 pm CST.
Sunshine
With an average of 5.5h 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 estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: In December, an average UV index of 2 transforms into the following instructions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. It's recommended to limit sun exposure when its radiation is at its peak during midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average December temperature?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December in Vian?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Vian have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Vian, OK
- Average high temperature in December: 50°F
The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is January (48°F).
- Average low temperature in December: 35.4°F
The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (32°F).
Average pressure in December
Vian, OK
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Vian, OK
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.4mph).
Average humidity in December
Vian, OK
- Average humidity in December: 73%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (69%).
Average rainfall in December
Vian, OK
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is May (4.69").
The driest months (with the least rainfall) are January and February (2.09").
Average rainfall days in December
Vian, OK
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in December
Vian, OK
- Average snowfall in December: 0.71"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Vian, OK
- Average snowfall days in December: 1.3 days
The month with the highest number of snowfall days is February (2.4 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
Vian, 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: 5h and 3min
The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in December
Vian, OK
- Average sunshine days in December: 18.6 days
The month with the most sunshine days is January (19.7 days).
The month with the least sunshine days is May (12 days).
Average UV index in December
Vian, 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
Vian, OK
- Average cloud cover in December: 39
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in December
Vian, 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).
Vian, Oklahoma, USA
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