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
Onset of December comes with a temperature decline, the average high falling from a refreshing 62.6°F (17°C) in November to a fresh 52.7°F (11.5°C). An average nighttime temperature of 37.8°F (3.2°C) is noted during the month of December.Humidity
The average relative humidity in December in Marietta is 69%.Rainfall
The months with the least rainfall in Marietta are January and December Rain falls for 7.5 days and accumulates 1.42" (36mm) of rain.Snowfall
Months with snowfall in Marietta, Oklahoma, are January through March, November and December. In Marietta, in December, during 0.6 snowfall days, 0.31" (8mm) of snow is typically accumulated. In Marietta, during the entire year, snow falls for 3.8 days and aggregates up to 2.09" (53mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of December in Marietta, Oklahoma, sunrise is at 7:16 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 5:30 pm CST.
Sunshine
With an average of 5.7h of sunshine, December has the least sunshine of the year.UV index
January, February and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 3 during December translates into the following guidance:
Take precautions - Protection against skin and eye damage is obliged. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Frequently asked questions
What is the usual temperature for Marietta in December?
What is the average humidity in December in Marietta?
What is the driest month in Marietta?
How many days does it rain in December in Marietta?
How much does it snow in Marietta in December?
What is the month with the shortest days in Marietta?
How many hours of daylight does Marietta have in December?
When are sunrise and sunset in December in Marietta?
What is the month with the least sunshine in Marietta?
How many hours of sunshine does Marietta have in December?
When is the lowest UV index in Marietta?
How high is the UV index in December in Marietta?
Average temperature in December
Marietta, OK
- Average high temperature in December: 52.7°F
The warmest month (with the highest average high temperature) is August (94.8°F).
The month with the lowest average high temperature is January (52.2°F).
- Average low temperature in December: 37.8°F
The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (36°F).
Average pressure in December
Marietta, 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 (29.89"Hg).
Average wind speed in December
Marietta, OK
- Average wind speed in December: 8.5mph
The windiest months (with the highest average wind speed) are March and April (10.4mph).
The calmest month (with the lowest average wind speed) is September (7mph).
Average humidity in December
Marietta, OK
- Average humidity in December: 69%
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (58%).
Average rainfall in December
Marietta, OK
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is May (3.86").
The driest months (with the least rainfall) are January and December (1.42").
Average rainfall days in December
Marietta, OK
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (6.4 days).
Average snowfall in December
Marietta, OK
- Average snowfall in December: 0.31"
The month with the highest snowfall is February (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Marietta, OK
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Marietta, 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: 5h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in December
Marietta, OK
- Average sunshine days in December: 21.3 days
The month with the most sunshine days is January (23.1 days).
The month with the least sunshine days is May (15 days).
Average UV index in December
Marietta, OK
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in December
Marietta, OK
- Average cloud cover in December: 34
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in December
Marietta, 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).
Marietta, Oklahoma, USA
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