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 transition to December results in a modest reduction in average high-temperature, moving from a comfortable 66.7°F (19.3°C) in November to a moderate 59.7°F (15.4°C). During December nights, Morriston witnesses a consistent average temperature of 43.7°F (6.5°C).Humidity
With an average relative humidity of 81%, December is the most humid month in Morriston.Rainfall
In December, in Morriston, Mississippi, the rain falls for 13.8 days. Throughout December, 3.74" (95mm) of precipitation is accumulated. In Morriston, during the entire year, the rain falls for 177.1 days and collects up to 36.42" (925mm) of precipitation.Snowfall
Months with snowfall in Morriston are January through March and December. The month with the most snowfall is December, when snow falls for 0.4 days and typically aggregates up to 0.39" (10mm) of snow.Daylight
With an average of 10h and 6min of daylight, December has the shortest days of the year in Morriston.On the first day of December in Morriston, sunrise is at 6:38 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 5:04 pm CST.
Sunshine
December has the least sunshine of the year in Morriston, Mississippi, 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 estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the UV index of 3 transforms into the following advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Frequently asked questions
What is the average December temperature in Morriston?
What is the most humid month in Morriston?
What is the average humidity in December in Morriston?
How much does it rain in Morriston in December?
What is the snowiest month in Morriston?
When does it start snowing in Morriston?
What is the month with the shortest days in Morriston?
How many hours of daylight does Morriston have in December?
When are sunrise and sunset in December in Morriston?
What is the month with the least sunshine in Morriston?
How many hours of sunshine does Morriston have in December?
What are the months with the lowest UV index in Morriston?
What is the UV index reading in December in Morriston?
Average temperature in December
Morriston, MS
- Average high temperature in December: 59.7°F
The warmest month (with the highest average high temperature) is August (91.8°F).
The month with the lowest average high temperature is January (56.8°F).
- Average low temperature in December: 43.7°F
The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).
Average pressure in December
Morriston, MS
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in December
Morriston, MS
- Average wind speed in December: 6.4mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is July (4.4mph).
Average humidity in December
Morriston, MS
- Average humidity in December: 81%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Morriston, MS
- Average rainfall in December: 3.74"
The wettest month (with the highest rainfall) is July (4.37").
The driest month (with the least rainfall) is November (1.77").
Average rainfall days in December
Morriston, MS
- Average rainfall days in December: 13.8 days
The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (8.7 days).
Average snowfall in December
Morriston, MS
- Average snowfall in December: 0.39"
The month with the highest snowfall is December (0.39").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Morriston, MS
- Average snowfall days in December: 0.4 days
The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Morriston, 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 month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in December
Morriston, MS
- Average sunshine days in December: 14.9 days
The months with the most sunshine days are October and November (19.8 days).
The month with the least sunshine days is August (6.4 days).
Average UV index in December
Morriston, 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
Morriston, MS
- Average cloud cover in December: 49
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in December
Morriston, MS
- Average visibility in December: 5mi
The months with the highest visibility are June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (5mi).
Morriston, Mississippi, USA
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