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 average high-temperature slightly decreases in December, shifting from a mild 59.5°F (15.3°C) in November to a cool 51.3°F (10.7°C). Marianna, in the month of December, anticipates a consistent average low-temperature of 39.2°F (4°C).Humidity
The months with the highest humidity in Marianna, Arkansas, are March and December, with an average relative humidity of 78%.Rainfall
In Marianna, in December, it is raining for 11.2 days, with typically 3.94" (100mm) of accumulated precipitation. Throughout the year, there are 164.8 rainfall days, and 41.73" (1060mm) of precipitation is accumulated.Snowfall
January through March, October through December are months with snowfall in Marianna. In Marianna, in December, during 0.4 snowfall days, 0.12" (3mm) of snow is typically accumulated. Throughout the year, there are 4.7 snowfall days, and 2.05" (52mm) of snow is accumulated.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:52 am and sunset at 4:51 pm. On the last day of December, in Marianna, sunrise is at 7:10 am and sunset at 5:02 pm CST.
Sunshine
In December, the average sunshine is 5.2h.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 3 suggests these recommendations:
Be vigilant - Preventing sunburn is recommended. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Always opt for UVA and UVB-resistant sunglasses on radiant days. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Marianna?
What are the most humid months in Marianna?
What is the average humidity in December in Marianna?
How much does it rain in Marianna in December?
How much does it snow in Marianna in December?
What is the month with the shortest days in Marianna?
How many hours of daylight does Marianna have in December?
When are sunrise and sunset in December in Marianna?
How many hours of sunshine does Marianna have in December?
When is the lowest UV index in Marianna?
How high is the UV index in December in Marianna?
Average temperature in December
Marianna, AR
- Average high temperature in December: 51.3°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (47.8°F).
- Average low temperature in December: 39.2°F
The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (34.9°F).
Average pressure in December
Marianna, AR
- 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 (29.94"Hg).
Average wind speed in December
Marianna, AR
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is February (9.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
Marianna, AR
- Average humidity in December: 78%
The months with the highest relative humidity are March and December (78%).
The month with the lowest relative humidity is October (67%).
Average rainfall in December
Marianna, AR
- Average rainfall in December: 3.94"
The wettest month (with the highest rainfall) is April (4.76").
The driest month (with the least rainfall) is January (2.4").
Average rainfall days in December
Marianna, AR
- Average rainfall days in December: 11.2 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in December
Marianna, AR
- Average snowfall in December: 0.12"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in December
Marianna, AR
- Average snowfall days in December: 0.4 days
The month with the highest number of snowfall days is February (1.6 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
Marianna, AR
- 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 54min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Marianna, AR
- Average sunshine days in December: 18.1 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (9.6 days).
Average UV index in December
Marianna, AR
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Marianna, AR
- Average cloud cover in December: 44
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in December
Marianna, AR
- 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).
Marianna, Arkansas, USA
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