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
December's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from November's refreshing 65.5°F (18.6°C) to a moderate 58.6°F (14.8°C). During the nights in December, Rosella observes an average low-temperature of 43°F (6.1°C).Humidity
The months with the highest humidity in Rosella are February and December, with an average relative humidity of 81%.Rainfall
In Rosella, during December, the rain falls for 13.5 days and regularly aggregates up to 3.86" (98mm) of precipitation. Throughout the year, there are 175.1 rainfall days, and 38.9" (988mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March and December. The months with the most snowfall are January and December, with an average 0.31" (8mm) of accumulated snow.Daylight
December has the shortest days of the year, with an average of 10h and 6min of daylight.On the first day of the month, sunrise is at 6:42 am and sunset at 4:56 pm. On the last day of December, sunrise is at 6:59 am and sunset at 5:07 pm CST.
Sunshine
The months with the least sunshine are February and December, with an average of 4.9h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 3 in December translates into this advice:
Undertake precautions - Guarding against sun damage is counselled. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Rosella in December?
What are the most humid months?
What is the average humidity in December?
How many days does it rain in December?
When does it snow the most?
When does it start to snow?
What is the month with the shortest days?
How many hours of daylight does Rosella have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Rosella, MS
- Average high temperature in December: 58.6°F
The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (55.9°F).
- Average low temperature in December: 43°F
The months with the highest average low temperature are July and August (72°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).
Average pressure in December
Rosella, MS
- 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 (29.96"Hg).
Average wind speed in December
Rosella, MS
- Average wind speed in December: 7mph
The windiest months (with the highest average wind speed) are February and April (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in December
Rosella, MS
- Average humidity in December: 81%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Rosella, MS
- Average rainfall in December: 3.86"
The wettest month (with the highest rainfall) is August (4.25").
The driest month (with the least rainfall) is November (2.4").
Average rainfall days in December
Rosella, MS
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is August (21.6 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in December
Rosella, MS
- Average snowfall in December: 0.31"
The months with the highest snowfall are January and December (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Rosella, MS
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is January (0.9 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
Rosella, MS
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in December
Rosella, MS
- Average sunshine days in December: 14.9 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is August (8.1 days).
Average UV index in December
Rosella, MS
- 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 and December (UV index 3).
Average cloud cover in December
Rosella, MS
- Average cloud cover in December: 48
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in December
Rosella, MS
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).
Rosella, Mississippi, USA
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