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
With the onset of December, Marietta's weather experiences a distinct temperature drop, moving from a wintry 41.2°F (5.1°C) in November to a freezing cold 25.2°F (-3.8°C). An average minimum temperature of 14°F (-10°C) marks the month of December.Humidity
The average relative humidity in December in Marietta is 85%.Rainfall
In Marietta, during December, the rain falls for 2.8 days and regularly aggregates up to 1.02" (26mm) of precipitation. In Marietta, during the entire year, the rain falls for 99.9 days and collects up to 19.65" (499mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, in Marietta, it is snowing for 10.5 days. Throughout December, 4.13" (105mm) of snow is accumulated. In Marietta, during the entire year, snow falls for 47 days and aggregates up to 20.35" (517mm) of snow.Daylight
With an average of 8h and 48min of daylight, December has the shortest days of the year in Marietta.On the first day of December in Marietta, sunrise is at 7:44 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 4:54 pm CST.
Sunshine
The average sunshine in December in Marietta is 4.2h.UV index
The average daily maximum UV index in December in Marietta is 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.Note: The UV index of 2 in December translates into these instructions:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
How cold is December in Marietta?
What is the average humidity in December in Marietta?
How much does it rain in Marietta in December?
How many days does it snow in December in Marietta?
What is the month with the shortest days in Marietta?
What is the average length of the day in December in Marietta?
When is the sunrise / sunset in December in Marietta?
How many hours of sunshine does Marietta have in December?
What is the UV index reading in December in Marietta?
Average temperature in December
Marietta, MN
- Average high temperature in December: 25.2°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (20.3°F).
- Average low temperature in December: 14°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).
Average pressure in December
Marietta, MN
- Average pressure in December: 30.12"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Marietta, MN
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity in December
Marietta, MN
- Average humidity in December: 85%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (66%).
Average rainfall in December
Marietta, MN
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is July (3.35").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in December
Marietta, MN
- Average rainfall days in December: 2.8 days
The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in December
Marietta, MN
- Average snowfall in December: 4.13"
The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Marietta, MN
- Average snowfall days in December: 10.5 days
The months with the highest number of snowfall days are January and December (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Marietta, MN
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Marietta, MN
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is June (12.6 days).
Average UV index in December
Marietta, MN
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and November (UV index 1).
Average cloud cover in December
Marietta, MN
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in December
Marietta, MN
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Marietta, Minnesota, USA
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